PLANT SCIENCE BULLETIN

A Publication of the Botanical Society of America, Inc.

THOMAS N. TAYLOR, Editor, Department of Botany, Ohio State University, 1735 Neil Ave., Columbus. Ohio 43210 (614) 422-3564

Editorial Board
SHIRLEY GRAHAM, Department of Biological Sciences, Kent State University, Kent, Ohio 44242
ROY H. SAIGO, University of Northern Iowa, Cedar Falls, Iowa 50614
JOHN H. THOMAS, Department of Biological Sciences, Stanford University, Stanford, California 94305

The Plant Science Bulletin is published six times a year, February, April, June, August, October and December. Change of address should be sent to the Business Manager, Botanical Society of America, Ohio State University, Columbus, Ohio 43210.

(ISSN 0032-0919)

April 1986 Volume 32 No 2

Botanical Society of America Annual Meeting - University of Massachusetts

Plan now to attend the meetings of the Botanical Society of America that will be held this summer (August 10-14) on the campus of the University of Massachusetts. The program promises to be an exciting one with 539 abstracts of contributed papers, posters and symposia covering all aspects of the plant sciences. There will be four workshops sponsored by the Teaching Section held throughout Sunday dealing with photography, teaching botany through inquiry, concept mapping and Vee diagramming and instruction in using the Myers-Briggs Type Indicator as a reliable questionnaire.

This year the Society will sponsor eleven symposia including: Perspectives on the Connecticut River Ecosystem: Past and Future; Biology of the Spadix; Problems in the Evolution and Systematics of the Cheilanthoid Ferns; Molecular and Genetic Organization of Plant Chromosomes; Causes and Consequences of Differences in Seed Size; Systematics and Evolution of the Monocotyledons; Experimental Approaches to and Analysis of Plant Development; Theory and Practice in the Developing Natural System, 1760-1900; Eastern North American Coastal Heaths; The Biology and Relationships of the Rhizophoraceae and Anisophylleaceae; and Mycorrhizal Fungi and Ecological Theory.

All members of the Botanical Society of American should have received by this date a complete set of registration materials. If you have not please contact me and I will forward a set to you immediately.

The program this year promises to be exceptional, and a large turn out is expected. The University of Massachusetts has always been an excellent site for our annual meeting, and I hope you will be able to attend.

Thomas N. Taylor, Program Director

POSITIONS

Postdoctoral Position, Department of Botany, OSU

There is a postdoctoral position open to study the effects of gravity environments on the cell cycle regulation during fern spore germination. The appointment will be initially for one year, and depending upon progress, will be renewed for another year. The position is open on April 1 and will remain so until a suitable candidate is found. A developmental botanist with some knowledge of gravity-oriented research is being sought. Salary will be $16,000-16,500 in the first year. If interested, please contact: Dr. V. Raghavan, Department of Botany, The Ohio State University, Columbus, Ohio 43210, 614/422-4723. (OSU is an equal opportunity
employer.)

Postdoctoral Position with the USDA

A Research Associate position is available for two years to conduct basic research on the microcapillary structure of the cell wall of xylem parenchyma in woody plants in relation to the processes of deep supercooling and equilibrium freezing. Soluble metal dyes and fluorescent molecular probes will be utilized to characterize free space in cell walls. The broad research interests of this laboratory are in the area of mechanisms of cold hardiness in plants. Candidates should be familiar with woody plant anatomy and physiology; mechanisms of cold hardiness and trained in skills involving TEN, SEM and plant physiology. The laboratory is a modern, well-equipped research facility located 50 miles outside of Washington, D.C. and employs about 60 research scientists and technical staff. Salary is at GS-11 ($26,381.00). Starting date is as soon as a suitable candidate is identified. Closing date is January, 1987. For further information or to submit applications (SF-171, curriculum vitae and statement of research interests) contact: Dr. Michael Wisniewski, Appalachian Fruit Research Station, Route 2 Box 45, Kearneysville, West Virginia 25430, 304/ 725-3451.

Plant Physiologist, University of California, Riverside

The Department of Botany and Plant Sciences, University of California, Riverside, is searching for a Plant Physiologist with a research interest in translocation and partitioning of photosynthate at the plant level. The position will be filled as an eleven-month, tenure-

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track appointment at the Assistant Professor level, on or after July 1, 1986. Applicants must have a Ph.D. in Plant Physiology or related field. Candidates with post-doctoral experience are preferred. We are searching for the most qualified individual who will establish a strong, unique research program. The applicant must have a commitment to the basic and applied studies of photosynthate translocation with the objective of improving the efficiency of crop plants in arid and/or saline regions. While the position will involve primarily research, some undergraduate and graduate teaching, including directing students in our graduate programs, will be required. Send relevant information, including a curriculum vitae, and transcripts, a statement of research interest, and have at least three confidential letters of recommendation sent to: Dr. R. L. Heath, Search Committee Chairman, Department of Botany and Plant Sciences, University of California, Riverside, CA 92521. Application deadline is April 30, 1986, or later if a suitable candidate has not been selected. (The Univer-sity of California, Riverside is an Affirmative Action/Equal Opportunity Employer. Minorities and women are encouraged to apply.

Student Internships

The Marie Selby Botanical Gardens offers undergraduate and graduate internships of one to three months at any time of the year. Training opportunities are available in tropical horticulture, museum exhibition, tissue culture, herbarium curation, and botanical research. Housing and a small stipend are provided. Send inquiries to: Dr. Bruce McAlpin, Director of Horticulture, The Marie Selby Botanical Gardens, 811 South Palm Avenue, Sarasota, Florida 33577 U.S.A. (813/366-5730).

AWARDS

Honorary Degree

R. Merton Love, Professor of agronomy and range science, emeritus, was presented with an honorary doctor of science degree during the Convocation for the Faculty of Agriculture at McGill University. Love earned his doctor's degree in genetics, magna cum laude, from McGill in 1935.

In May, he received an honorary doctor of laws degree from the University of Saskatchewan, where he earned his bachelor's and master's degrees in 1932 and 1933, respectively. A native of Saskatchewan, Canada, Love has an inter-national reputation as an innovator in agricultural science. His research has been focused on improving rangelands through agronomic practices.

NOTICES

Back Issues of Journals

The following back issues of journals are available for the cost of shipping:

DEVELOPMENTAL BIOLOGY from Vol. #1, 1959 through Vol. 14, 1971-#2.

GROWTH from Vol. XI, 1947 through Vol. XXXIX 1969. EVOLUTION from Vol. 1 through Vol. 27.

QUARTERLY REVIEW OF BIOLOGY from Vol. 38#1, 1963 through Vol. 43114, 1968.

NEUROSCIENCE RESEARCH BULLETIN Vol. II#6 through Vol. 8 #5, 1970.

If Interested contact: Helena A. Miller (Retired Professor of Biology, 532 Highview Road, Pittsburgh, PA 15234.

IN MEMORIAM

CARL LOUIS WILSON, Dartmouth College professor of botany emeritus, died Friday, March 7 at the Dartmouth-Hitchcock Medical Center after a long illness. He was 88.

For more than 30 years, Professor Wilson taught Botany 1, the introductory course in that discipline, before it was incorporated into a life science course designed by the Departments of Botany and Zoology. He was the co-author, along with Walter E. Loomis, of "Botany", a textbook first published in 1952 and used in more than 200 colleges across the nation.

Professor Wilson joined the Dartmouth faculty in 1924 as an instructor, was promoted to assistant professor in 1927 and to full professor in 1935. He served as chair-man of the Botany Department at Dartmouth and was chair-man of the life science course when it was initiated. He also served on the advisory committee to the president of the College. Wilson retired in 1963. During the summer of 1952 Professor Wilson taught at the Mountain Lake Biological Station of the University of Virginia.

Following his retirement, Professor Wilson remained active in writing and research at the Gilman Life Sciences Laboratory at Dartmouth.

A Fellow of the American Association for the Advancement of Science, Professor Wilson also belonged to the Botanical Society of America, the International Association of Plant Morphologists, and the American Institute of Biological Sciences. In addition, he was a member of Sigma Xi, Phi Sigma, Lambda Chi Alpha and Gamma Alpha scientific associations and contributed numerous articles on botanical subjects to scholarly journals.

CHARLES DRECHSLER, 93, mycologist, who retired from the Department of Agriculture in 1962 with 45 years of federal service, died February 4, 1986.

Over the years he published more than 100 papers in professional journals. He was a fellow of the American Phytopathological Society and a member of numerous other professional bodies, including the Botanical Society of America, the Mycology Society of America, the Washington Botanical Society, the Washington Academy of Sciences and the Wisconsin Academy of Arts, Letters and Sciences.

In 1953, he received the Distinguished Service Award from the Department of Agriculture.

A resident of University Park, Dr. Drechsler was born in Butternut, Wis. He received bachelor's and master's degrees from the University of Wisconsin and then went to Harvard University, where he received a doctorate in mycology in 1917.

Multivariate Statistical Package for the IBM PC Now Available

MVSP, a MultiVariate Statistical Package, is a program written for the IBM PC and close compatibles. It is geared towards simple analyses of small to medium sized data sets. It is also available for only the price of a disk and postage. This package contains procedures to perform various ordination and clustering analyses. These procedures include: principle components analysis, reciprocal averaging, many similarity and dissimilarity measures, average linkage cluster analysis, and diversity indices. This program is menu-driven and easy to use, with all possible options being presented to you at each step. The data files may be created and maintained using any database, spreadsheet, or word processor program which creates plain ASCII files.

A copy of this program may be obtained from the author by sending a formatted, double sided floppy disk and the cost of return postage to the address listed below. Or you may send a check to cover the cost of a disk, mailer, and postage ($5.00 total) to: Warren L. Kovach, Department of Biology, Indiana University, Bloomington, IN 47405.

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Bryological and Lichenological 1986 Foray

The Society's 1986 foray will be held on Saturday and Sunday, 9-10 August, just before the AIBS meeting in Amherst, Massachusetts. The destination is diverse bryophyte and lichen habitats in the southern Green Mountains of Vermont. There will be an organizational meeting and slide presentation the night of Friday, 8 August, on the University of Massachusetts campus. Transportation will be by private automobile with a departure at 7:30 a.m. Saturday and a return by 5:00 p.m.

Sunday. Saturday night camping will be available in Mount Ascutney State Park; there are also motels in nearby towns. Bryological and lichenological collecting is permitted at all sites to be visited. Participants are responsible for their own transportation, lodging, and meals except for Saturday and Sunday lunches. The fee of $15.00 covers those two lunches and all toll-road costs. The trip is limited to 50. For additional information and registration, write the foray leader, Cyrus B. McQueen, Department of Botany, University of Vermont, Burlington VT 05405, or telephone him (802-656-2930).

SHORT COURSES

Plant Cell and Tissue Culture Course

A course consisting of lecture-discussions and laboratory exercises in most aspects of plant cell and tissue culture will be held at the University of Tennessee, Knoxville, August 18-29, 1986. This course is designed for persons with a degree in science or experience in plant tissue culture who need a thorough know-ledge of and training in plant cell and tissue culture. The course has been evaluated and certified by the Tissue Culture Association, Inc. The fees for the course will be $1100. For further information please contact Dr. Donald K. Dougall, Botany Department, the University of Tennessee, Knoxville, Tennessee 37996-1100 (615/974-2256).

MEETINGS

International Workshop on Reproductive Ecology of Tropical Forest Plants

Contributed papers are solicited for an international workshop on the Reproductive Ecology of Tropical Forest Plants to be held at Bangi, Malaysis from June 7-11, 1987. The workshop is sponsored by the Man and Biosphere (MAB) Program of UNESCO and the Decade of the Tropics Program of the International Union of Biological Sciences (IUBS), in collaboration with the Malaysian MAB National Committee. The topics to be covered include, but are not limited to, reproductive rhythms, plant-pollinator inter-actions, seed dispersal and seedling ecology, regeneration and management of tropical forests and plantation forestry. Field trips to several tropical forest sites in Malaysia are planned. Invited speakers include: S. Appanah, P. S. Ashton, K. S. Bawa, J. H. Beach, G. W. Frankie, H. F. Howe, F. Ng, S. P. Hubbell, and others. The deadline for the receipt of abstracts is November 1, 1986. The participation in the workshop will be limited to 200 persons. Limited travel support is available for scientist form developing countries. For further information, write to: Division of Ecological Sciences, UNESCO, 7, Place de Fontenoy, 75700 Paris, France.

Tomato Biotechnology Symposium

A conference devoted to the "Application of Biotechnology to Tomato Research and Improvement" will be held August 20, 21, 22, 1986 on the campus of the University of California, Davis. The conference will bring together scientists engaged in research related to understanding tomato genetics and physiology. Emphasis will be on the application of modern approaches to molecular biology to tomato research. Contact: D. J. Nevins, Department of Vegetable Crops, University of California, Davis, California 95616, U.S.A., (916) 752-7049.

Plant-Soil Interactions at Low pH Symposium

A symposium sponsored by Agriculture Canada and the University of Alberta, Grande Prairie, Alberta, Canada, July 20-24, 1987. An understanding of the physiology, ecology, and chemistry of plant-soil interactions at low pH is of interest to botanists, soil scientists, ecologists, agriculturalists, and foresters. The intent of this symposium is to bring together scientists to discuss the multidisciplinary aspects of the acid soil problem. Keynote addresses, symposia, and contributed papers will address the following areas: aluminum and manganese phytotoxicity and tolerance, chemistry of acidic soils, ecology of the rhizosphere, plant nutrition in acidic soils, breeding plants for acid tolerance, problem solving in agricultural and forestry production, and land reclamation. The program will also include tours of
areas of regional soil acidity and the Agriculture Canada Research Station at Beaverlodge, Alberta. Contact Dr. K. G. Briggs, Department of Plant Science, Faculty of Agriculture and Forestry, University of Alberta, Edmonton, Alberta, Canada, T6G 2P5.

SHORT COURSES

Computers in Biology

A series of four one-week shortcourses in Computers in Biology will be offered concurrently in the Department of Biological Sciences of The University of Notre Dame. Designed for faculty, postdoctorals, and advanced graduate students, the courses and instructors are: 1) Computers in Bioeducation, Theodore J. Crovello; 2) Microcomputers in laboratory and Classroom, Harald E. Esch; 3) Micro to Mainframe Computers in Biological Data Processing and Analysis, Ronald A. Hellenthal; and 4) Microcomputers for Modeling and Simulation, James D. Spain. The courses can accommodate participants with or without computer backgrounds. Enrollment is limited to assure personalized instruction. Courses begin on Sunday evening, August 17, 1986 and end on Friday evening, August 22. Sessions include lectures and direct computer experience. Available computing facilities range from an IBM 370/3033 computer system to a variety of mini and micro-computers including Apple II and Macintosh, RS-80 and IBM PC compatibles.

Tuition is $595 ($495 for educators) payable in advance. A 20% discount is available to organizations that enroll two or more participants in the short course series. Modern, air conditioned, dormitory rooms are available. For more information about any short course, contact Ronald A. Hellenthal, Biocomputing Short Courses Coordinator, Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556. Phone: 219/ 239-7255.

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BOOK REVIEW

Schofield, Wilfred B. Introduction to Bryology, MacMillan Co., 866 Third Ave., New York, NY 10022. 1985. xvi + 431 pp. 177 fig. 5 tab. $45.00. North American botanists have long been in need of an introductory bryology text. This publication by Schofield represents our first such offering, i.e., a text-book devoted solely to those fascinating land plants with the alternative, "nonvascular," life style of gametophyte persistent/sporophyte ephemeral. Following an introductory chapter, the format consists of a 248 page "section" comprising chapters 2-19 which individually treat major taxonomic units. This is sequenced by chapters literature citations in the text are wanting. Since many of the listed readings are not really suitable as student assignments, these literature lists might better be titled as References.

While the above may not convey a positive impression, I would stress that overall the treatment is very well balanced, the chapters are richly illustrated and the layout is nicely structured for the student. Apart from its uncritical approach, the text represents a commend-able effort. It is hoped that this book will provide the important stimulus needed for further extending enrollment in college level bryology courses in North America.

R. E. Stotler Southern Illinois Univ. dealing with history, cytology/genetics, chemistry, physiology, ecology and geography of bryophytes. A 14 page glossary is followed by 10 appendices which outline useful techniques or the detailed study of these rather small macrophytes. (1985 reprint, Koeltz Scientific Books, Konigstein).

Sculthorpe, Cyril Duncan. The Biology of Aquatic Vascular Plants. Edward Arnold Publishers) Ltd., London 1967 xviii + 610 pages, illus. 100. ISBN 3-87429-257-6. Price: DM The difficult task of writing a text aimed at an in-troductory audience can frequently prompt one to generaize, often at the expense of scientific accuracy. Unfortunately, in the present edition of the book the frequency of compromising statements, which introduce inaccuracies in most chapters, appears unacceptably high. To review but just a few of these from the initial systematic chapter, one reads: "Mosses are generally the most conspicuous bryophytes in the vegetation." This may be true of most temperate communities, but is often not the case in hepatic-dominated tropical rain forests. This is perhaps the case with the sporophyte phase, but certainly is not true of the gametophyte phase, considering the range from leafy to thalloid morphologies in hepatics. In the protonema cross-walls are often oblique." Oblique cross-walls are typical of the caulonemal phase, but not characteristic of the chloronomeal phase. In the gametophore "... leaves are generally radially arranged in more than three rows." The implication is that moss leaves are ranked, which they mostly are not. Leafy liverwort leaves are in rows, but moss leaves, reflecting a different apical cell geometry and segmentation pat-tern, are predominantly inserted in a 2/5 or 3/8 phyllotactic spiral. Of the mosses, "leaf cells have simple oil bodies..." Mosses never have oil bodies: they are unique to hepatics. These few extracts are from but the first three text pages. While additional statements in each chapter can be challenged, it serves no useful purpose here.

Although a major thrust of the text is systematic, the treatment of higher taxonomic categories is in conflict with the rules of nomenclature. That I do not agree with the class rank afforded the major coordinate bryophyte groups is irrelevant. However, to use the names Hepaticae, Anthocerotae and Musci throughout the book, but to state on page one: "Although these names are used traditionally, the International Rules of Botanical Nomenclature would recommend Hepaticopsida, Anthocerotopsida and Bryopsida," seems counterproductive. Such usage does not teach students good taxonomic habits, but rather suggests that one can simply ignore the rules.

While the text does contain a wealth of information, students may too often be misguided, either by absolute inaccuracies or by their faulty extrapolation of an unsound generalization. For advanced students and the professional it would he beneficial to cite authorative references to corroborate problematical statements. For example, in the Ecology chapter one reads: "At times when precipitation is low, all of the moisture may be taken up by the bryophyte mat, and none passes through to the roots of the seed plants." Since the implications of bryophyte environmental impact here are drastic, it would be of significance to cite the documented scientific evidence upon which this statement is based. Although each chapter is appended with "Further Reading" lists, Nearly 20 years have elapsed since Sculthorpe's book was first published, and several reviews have been presented previously (e.g., Econ. Bot. 23:84-85; Castanea 35:335). Instead of reiterating points made in these earlier reviews, I will provide, in retrospect, an assessment of the present utility of this text.

Since its first appearance, this book has been one of the most useful references on the subject. This latest reprint provides much-needed access to a wealth of classic aquatic plant literature which was stifled by the prolonged out-of-print period of the earlier printings.

As one would expect, water-plant literature has increased steadily since 1967, with approximately 20,500 titles now listed in the University of Florida's computerized database on the subject. Sculthorpe's 1700 or so citations may seem trivial in comparison, although it will probably be some time before a more comprehensive review is attempted (I estimate that a bibliography of the 20,500 titles alone would occupy over 650 pages if Sculthorpe's format was followed). Such an undertaking would require motivation greater than that demonstrated by Sculthorpe himself who completed his classic work at age 25.

This is not to say that a revised book is unnecessary. Sculthorpe's untimely death at age 28 prevented him from issuing later editions, and his occasional errors remain in the text. Until such a book is written, however, Sculthorpe will continue to be the primary reference source for aquatic botanists.

Indeed, one reason for the lasting appeal of the "Biology" is a lack of competing literature. Although Hutchinson's Limnological Botany (1975) and Haslam's River Plants (1978) are notable additions to "post-1967" water plant literature, the content of both books serves to supplement rather than supplant the material covered in Sculthorpe.

The record speaks for itself. Looking at present-day publications pertaining to aquatic plants, one finds a nearly universal citation of Sculthorpe's book. In short, the "Biology" is one book that should be owned by everyone interested in aquatic plants. The Koeltz re-print is excellent, and retains most of the attributes of the original text (a good binding, shiny paper, and well- reproduced photographs). With a present price-tag less than twice that of the original ($23.00 in 1967), the quality reproduction is a bargain. It is fortunate that publishers such as Koeltz continue to recognize the botanist's need for reprinted botanical classics.

Donald H. Les
Department of Biological Sciences
The University of Wisconsin-Milwaukee

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BOOK REVIEWS

Bewley, J. Derek and Black, Michael. Seeds: Physiological of Development and Germination. Plenum Press, 233 Spring Street, New York, NY 10013, 1985. xiii + 367 p., illus. ISBN 0-306-41687-5. Price: None given. (A text-book dealing with the essential aspects of seed physiology and biochemistry designed to be used for studies of seed biology, as well as in selected areas of plant physiology, agriculture and horticulture.)

Brooks, R. P., Malaisse, F., and one chapter by Empain, A. The Heavy Metal-Tolerant Flora of Southcentral Africa: A Multidisciplinary Approach. A. A. Balkema Publishers, P.O. Box 1675, Rotterdam, The Netherlands, 1985. x + 199 p., illus. ISBN 90-6191-543-0. Price: $35.00. (Data on the heavy metal plants of southcentral Africa associated with the chemical analysis of vegetation and mineral detection.)

Buckles, Mary Parker. The Flowers Around Us: A Photographic Essay on Their Reproductive Structures. University of Missouri Press, 200 Lewis Hall, Columbia, Missouri 65211, 1985. vii + 118 0., illus. ISBN 0-8262-0402-3. Price: $29.00. (A superbly illustrated volume of color photographs highlighting floral structures and flower and fruit development.)

Craker, Lyle E. and Simon, James E., ed. Herbs, Spices, and Medicinal Plants: Recent Advances in Botany, Horticulture, and Pharmacology Volume I.. The Oryx Press, 4 North Central at Encanto, Phoenix, AZ 85004, 1986. vii + 359 p., illus. ISBN 0-89774-143-9. Price. $55.00. (A series of eight papers on such topics as: botanical nomenclature of culinary herbs, biochemical pharmacology of plant alkaloids, and production ecology of secondary plant products.)

Daiber, Franklin C. Conservation of Tidal Marshes. Van Nostrand Reinhold, 115 Fifth Avenue, New York, NY 10003, 1986. ix + 341 p., illus. ISBN 0-442-24873-3. Price: $39.95. (A detailed handbook on vegetation and water management, ecological effects of insecticides and oil spills and legal aspects of wetland ecosystem restoration, enhancement and control.)

Goldberger, Robert F. and Yamamoto, Keith R., ed. Biological Regulation and Development (Volume 3A) Hormone Action. Plenum Publishing Corporation, 233 Spring Street, New York, NY 10013, 1982. xiv + 346 p., illus. ISBN 0-306-40925-9. Price: $45.00. (A series of original contributions stressing the essential concepts that underlie biological regulation and development, and ranging from the history of hormones to the metabolism of cell surface receptors.)

Goldberger, Robert F. and Yamamoto, Keith R., ed. Biological Regulation and Development (Volume 3B) Hormone Action. Plenum Publishing Corporation, 233 Spring Street, New York, NY 10013, 1984. xiii + 312 p., illus. ISBN 0-306-41442-2. Price. $42.50. Grainger, Alan, ed. The International Tree Crops Journal the Journal of Agroforestry. Volume 3, No. 2/3. Academic Publishers, P.O. Box 97, Berkhamsted, Herts HP4 2PX, England, 1985. 85-221 p., illus. ISSN 0143-5698. Price $73.50/volume of 4 issues. (A journal that focuses on the development of new tree crops, and multiple land use practices producing both wood and food or other cash crops.)

Grainger, Alan, ed. The Journal of World Forest Resource Management Vol. 1, No. 2. A. B. Academic Publishers, P.O. Box 97, Berkhamsted, Herts HP4 2PX, England, 1985. p. 133-150. ISSN 0261-4286. Price: $45.00. (A journal that focuses on aspects of the management of forests as a global resource.)

Hattori, Sinske, ed. The Journal of the Hattori Botanical Laboratory: Devoted to Bryology and Lichenology, No. 59. Hattori Botanical Laboratory; 3888-1, Obi-Honmachi, Nichinan-shi; Miyazaki-ken 889-25, Japan, 1985. 529 p., illus. ISSN 0073-0912. Price: None given. (A collection of seventeen well produced papers dealing with bryological and lichenological topics.)

Hodges, R. D., Lopez-Real, J. M., Scofield, A. M., ed. Biological Agriculture and Horticulture An International
Journal. Vol. 3, No. 1. A. B. Academic Publishers, P.O. Box 97, Berhamsted, Herts HP4 2PX, England, 1985. 83 p., illus. ISSN 0-144-8765. Price: None given. (A journal dedicated to the biological approach to food production utilizing natural biological processes for the maintenance of soil fertility and for the control of pests and disease.)

Jackson, Jeremy B. C., Buss, Leio W. and Cook, Robert E., ed. Population Biology and Evolution of Clonal Organisms. Yale University Press, 92 A Yale Station, New Haven, CT 06520, 1986. xi + 530 p., illus. ISBN 0-300-03379-6 (Hardcover), 0-300-03650-7 (Paperback). Price: $60.00 HC), $30.00 (PB). (A collection of papers dealing with the morphology, development, evolution and population biology of clonal growth.)

Jones, C. Eugene and Little, R. John, ed. Handbook of Experimental Pollination Biology. Scientific and Academic Editions, 135 W. 50th Street, New York, NY 1983. xviii + 558 p., illus. ISBN 0-442-24676-5. Price: None given. (A series of twenty-six papers on current methologies and experimental approaches in plant-pollinator interactions.)

Neyfakh, A. A. and Timofeeva, M. Ya. Molecular Biology of Development (Vol. 1). Molecular Events. Plenum Press, 1984 (translated from Russian by M. G. Zimmerman). 351 p., illus. ISBN 0-306-413337. Price: None given. (A two volume work encompassing the available data on DNA, RNA and proteins as they relate to the changes in content, composition and synthesis rate of macromolecules which occur in oogenesis and embyrogenesis. Volume 1 describes the molecular events; volume II the synthesis control mechanisms.)

Neyfakh, A. A. and Timofeeva, M. Ya. Molecular Biology of Development (Vol. 2) Problems of Regulation. Plenum Press, 1984 (translated from Russian by M. G. Zimmerman.) 440 p., illus. ISBN 0-30-41337. Price: None given.

Ross, Merrill A. and Lembi, Carole A. Applied Weed Science. Burgess Publishing Company, 7108 Ohms Lane, Minneapolis, MN 55435, 1985. xi + 340 p., illus. ISBN 0-8087-2958-6. Price: None given. (An authorative reference volume on weed science and control practices encountered in the field.)

Stubbendieck, J., Hatch, Stephan L., Hirsch, Kathie J. North American Range Plants. Third Edition. University of Nebraska Press, 901 North 17th, Lincoln, Nebraska 68588, 1986. 465 p., illus. ISBN 0-8032-9162-0. Price: $18.95. (A comprehensive reference volume of two hundred important species of North American range plants, including description, illustrations and geographic distribution.)

Straka, Herbert and Friedrich, Brigitte. Palynologia Madagassica et Mascarenica; Familieu 17 bis 49, Gymnospermae and Monocotyledones. Akademie der Wissenschaften und der Literatur, Mainz, Tropische and Subtropischer Pflanzenwelt 49, 1984. Available from Franz Steiner Verlag, Wiesboden GMBH - Stuttgart. 89 p., illus. ISBN 3-515-04340- 3. 34,60 DM wrappers (An illustrated, documented, description of pollen of the families covered.)

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Strider, David L., ed. Diseases of Floral Crops. Vol. I. Praeger, 521 Fifth Ave., New York, NY 10175, 1985 ziv + 638 p., illus. ISBN 0-03-062194-1. $40.00. (The first volume of this two volume set considers the diseases common to many herbaceous ornamentals, the general problem of disease control, and specific diseases of azaleas, bedding plants, begonias, bulbs, carnations, and chrysanthemums; the second volume will start with those of cyclamens and end with pot plants.)

Strider, David L., ed. Diseases of Floral Crops = Volume I, II. Praeger, 521 Fifth Avenue, New York, NY 10175, 1985. vi + 638 p.; x + 579p., illus. ISBN 0-03-62194-1. ISBN 0-03-002928-7. Price: $140.00. (Two comprehensive volumes that provide detailed information on the floral diseases of the more important floral crops. Numerous aspects of management and control are considered; good halftones and a workable glossary are provided.)

Tiffney, Bruce H., ed. Geological Factors and the Evolution of Plants. Yale University Press, 92A Yale Station, New Haven, CT 06520, 1985. viii + 294 p., illus. ISBN 0-300-03304-4. $25.00. (Papers resulting from a symposium held in 1982 present various aspects of plant-environment interactions over a broad geological time scale and help to suggest synergistic relation-ships.)

Toomey, D. F. and Nitecki, M. H., ed. Paleoalgology Contemporary Research and Applications. Springer-Verlag, New York, Inc., 44 Hartz Way, Secaucus, New Jersey 07094-2491, 1985. x + 376 p., illus. ISBN 3-540-15312-8, 0-387-15312-8. Price: $65.00 (Twenty-nine papers presented at the Third International Fossil Algae Association Symposium (1983) and including stromatalites, reefs, classification, sediment origin and evolution.)

Van Bruggen, Theodore. The Vascular Plants of South Dakota. 2nd edition. Iowa State University Press, 2121 South State Ave., Ames, IA 50010, 1985. xxv + 476 p. ISBN 0-8138-0650-X. $28.95 paper. (This second edition, after nine years, adds new state records and distributions, revises nomenclature, and follows Cronquist's 1981 system of classification and family sequence.)

Weishaupt, Clara G. A Descriptive Key to the Grasses of Ohio Based on Vegetative Characters. Ohio Biological Survey, College of Biological Sciences, The Ohio State University, 484 W. 12th Ave., Columbus, OH 43210, 1985. v + 99 p., illus. ISBN 0-86727-098-5. $14.00 postpaid. (An extended key that includes habitat and flowering information.)

White, J., ed. The Population Structure of Vegetation. Dr. W. Junk Publishers, from Kluwer Academic Publishers Group, Spuiboulevard 50, P.O. Box 989, 3300 AZ Dordrecht, The Netherlands, 1985. xiv + 666 + (3) p.,illus. ISBN 90-6193-184-3. $97.50. (This Handbook of Vegetation Science, Part III, dedicated to the late Soviet geobotanist Professor T. A. Rabotnov, contains much of interest to ecologists, population biologists, and geobotanists as it covers various aspects of populations in different world ecosystems.)

White, James, ed. Studies on Plant Demography. Academic Press, Inc., Orlando, Florida 32887, 1985. xxxiii + 393 p.,illus. ISBN 0-12-746630-4(HC), 0-12-746631-2(PB). Price: None given. (A Festchrift consisting of twenty-four papers to honor John L. Harper for his profound influence in comparative autecology.)

Van Veen, Ted. Rhododendrons in America. Second Edition, Second Printing. Binford & Mort Publishing. Portland, Oregon, xi + 180 p., illus. ISBN 0-8323-0374-7 (Softcover), ISBN 0-8323-0450-6 (Hardcover). Price: $25.00 (SC), $39.95 (HC). (A well illustrated book
dealing with all practical aspects of rhododendrons.)

Wickens, G. E., J. R. Goodin, and D. V. Field, eds. Plants for Arid Lands. Proceedings of the Kew International Conference on Economic Plants for Arid Lands Held in the Jodrell Laboratory, Royal Botanic Gardens, Kew, England, 23-27 July 1984. Allend and Unwin, 8 Winchester P1., Winchester, MA 01890, 1985. xiv + 452 p., illus. ISBN 0-04-581019-2. $35.00. (Papers that consider many aspects of plant uses from food to biochemicals for arid region plants and the economic problems associated with their use.)

Vickers, William T. and Plowman, Timothy. Useful Plants of the Siona and Secoya Indians of Eastern Ecuador. Field Museum of Natural History, (Roosevelt Road at Lake Shore Drive, Chicago, Illinois 60605-2496, 1984. iv + 63 p., illus. ISSN 0015-0746 (New Series No. 15). Price: $9.00). (An ethnobotanical study, including the listing of 224 species used by the Siona and Secoza Indians of eastern Ecuador.)

Weishaupt, Clara G. A Descriptive Key to the Grasses of Ohio Based on Vegetative Characters. Ohio Biological Survey, College of BioTōgical Sciences, The Ohio State University, 484 W. 12th Ave.. Columbus, OH 43210, 1985. v + 99 p., illus. ISBN 0-86727-098-5. $14.00 postpaid. (An extended key that includes habitat and flowering information.)

White, J., ed. The Population Structure of Vegetation. Dr. W. Junk Publishers, from Kluwer Academic Publishers Group, Spuiboulevard 50, P.O. Box 989, 3300 AZ Dordrecht, The Netherlands, 1985. xiv + 666 + (3) p.,illus. ISBN 90-6193-184-3. $97.50. (This Handbook of Vegetation Science, Part III. dedicated to the late Soviet geobotanist Professor T. A. Rabotnov, contains much of interest to ecologists, population biologists, and geobotanists as it covers various aspects of populations in different world ecosystems.)

White, James, ed. Studies on Plant Demography. Academic Press, Inc., Orlando, Florida 32887, 1985. xxxiii + 393 p.,illus. ISBN 0-12-746630-4(HC), 0-12-746631-2(PB). Price: None given. (A Festchrift consisting of twenty-four papers to honor John L. Harper for his profound influence in comparative autecology.)

Wickens, G. E., J. R. Goodin, and D. V. Field, eds. Plants for Arid Lands. Proceedings of the Kew Inter-national Conference on Economic Plants for Arid Lands Held in the Jodrell Laboratory, Royal Botanic Gardens, Kew, England, 23-27 July 1984. Allend and Unwin, 8 Winchester P1., Winchester, MA 01890, 1985. xiv + 452 p., illus. ISBN 0-04-581019-2. $35.00. (Papers that consider many aspects of plant uses from food to biochemicals for arid region plants and the economic problems associated with their use.)

Wallace, Robert A., King, Jack L., and Sanders, Gerald P. Biology the Science of Life, 2nd Edition. Scott. Foresman and Company, Glenview, Illinois, 1986. 1217 p., illus. ISBN 0-673-16657-0. Price: None given. (A revised edition of a basic biology text organized into forty-two chapters, each with associated pedagogical aids.)

Winner, William E., Mooney, Harold A., Goldstein, Robert A., ed. Sulfur Dioxide and Vegetation: Physiology, Ecology, and Policy Issues. Stanford University Press, Stanford, CA 94305, 1986. xx + 593 p., illus. ISBN 0-8047-1234-4. Price: $65.00. (The results of a symposium directed at determining the impact of SO2 , on plant productivity including pollution management issues and future research priorities.)