The Bean bag

P • H ^33.

R. S. Cowan,

Ed itor

Charles R. Gunn, Associate Editor

Department

of Sotany

Plant Taxonomy Laboratory

Smithsonian

Institution

BARC-WEST, USDA

Washington,

D.C. 20560

Beltsville, Maryland 20705

Number

TWO

NOVEMBER. 1875

FROM THE EDITORS. We want to strengthen legume research by stimulating
inexpensive and rapid commuication with a minimum of organization and Mred
tape". We can only do this with your contributions and suggestions. The
next BEAN BA.G is scheduled for a May 1976 mailing, so we hope you X\rill supply
information on the enclosed data form which should reach us no later than 1
April 1976.

Several of you have indicated how valuable it will be to have in each
issue a listing of recent legume publications. We agree but this will be
possible only if all of us submit the necessary citations on the data-
collection form enclosed. And it is only the papers on legume taxonomy
(sensu lato) which have been published in the period since the last BEAN
BAG that we will include. It will be helpful, when you are reporting new
publications on the form, if you will use the style of literature cita-
tion in the following pages.

There have been requests for listings of chromosome numbers but this
is being accomplished quite adequately in the pages of TAXON and else-
where. The costs of producing the BB are sufficient to encourage us to be
rather selective in what is included in each issue; however, a large demand
for a particular kind of information, not being transmitted otherwise, will
be taken seriously.

A number of our readers have asked about the relationship between the
International Group for the Study of Mimosoideae and the BEAN BAG. We have
in common our research preoccupation with the Leguminosae, but the BEAN
BAG has but one purpose — to facilitate communications among legume specialists.
It is not the publication of an organization, as is the Bulletin of the IGSM,
which is primarily concerned only with the mimosoids. We recognize the over-
lap but do not feel it is serious, at least at the moment.

The organizers of a 1978 symposium on legumes have supplied us with a
news release which will be of considerable interest and importance to all
our. readers. It is reproduced in the following pages.

* * * ************** * * * * * * * * * * * *

FEATURE. Jim Duke claims that he could tell the annual rainfall and temper-
ature of remote areas by the legumes that groxv there, provided he had

-2-

enough case histories in his legume data bank. For example, the winged bean,
subject of a report reviewed in this issue of BEAN BAG, is already reported
to range from Subtropical Dry to Wet Forest Life Zone (most cases C37.5%!
in Tropical Dry), with, annual precipitation ranging from 9.1 to 28.2 dm,
annual bio temperature from 22.1°C to 26.8°C. Ranges for Acacia farnesiana
and Cassia occidentalis differ somexihat, ranging to cooler and dryer areas,
but both are reported more frequently from Tropical Dry Forest Life Zone
(27% of cases for Acacia, 21% for Cassia) . Thus, someone examining a flora
with these three species might expect that the odds are he’s dealing with a
Tropical Dry Forest Life Zone flora. With more data in a systematic
computer program, one could deduce the various meterological parameters
rather accurately. Dr. Duke Invites your collaboration. Local legume check-
lists accompanied by ecological data are needed to expand his data base.

If you are interested in collaborating, please write to James A. Duke,

Plant Taxonomy Laboratory (PTL) , United States Department of Agriculture,
Beltsville, Maryland 20705 USA.

ADDITIONS AND CORRECTIONS TO BEAN BAG READERSHIP. (Please save both this
list and the main list in Number 1 for your future use.)

BOTANICAL MUSEUM, Harvard University, 22 Divinity Avenue, Cambridge, MA
02138 USA.

BUREAU OF FISH & WILDLIFE, Box 1878, Frederiksted, St. Croix, V. I. 00840
USA.

CANO, G. , Inst. Teen, y de Est. Sup. de Monterrey, Sucursal de Correos ”j”,
Monterrey, N. L., MEXICO.

CHRTKOVA-ZERTOVA, A., Botanical Institute, Czechoslovak Academy of Sciences,
252 43 Pruhonice near Prague, CZECHOSLOVAKIA.

DE WET, H. C. D., Laboratory for Plant Taxonomy & Plant Geography, 37,

General Foulkesweg, Wageningen, NETHERLANDS.

DOLLAHITE, J. W. , Veterinary Toxicology and Entomology Research Laboratory,
Post Office Drawer GE, College Station, TX 77840, USA.

DOMINGUEZ, X. A., Inst. Tecnologico y de Estudios Superiores de Monterrey,
Monterrey, N. L., MEXICO.

DUDIK, N. M. , Central Botanical Garden, Timiryasevska str. I, 252014 Kiev,
USSR.

DUNCAN, W. H. , Botany Department, University of Georgia, Athens, GA 30602
USA (Flora of SE States).

FLEAK, S., Department of Biology, Missouri Valley College, Marshall, MO
65340 USA.

-3-

GEESENK: Correct No. 1 to read (S.E. Asian Papilionatael.

GIANNASI, D. E. , Nexv York Botanical Garden, Bronx, NY 10458 USA (Phyto-
chemistry, especially of Cassia) .

GILL, L. S. , Department of Botany, University of Dar es Salaam, P. 0. Box
35060, DAR ES SALAAM, TANZANIA.

GORDAN-GRAY, K. D., Department of Botany, University of Natal, P. 0. Box
375, Pietermaritzburg, Natal, SOUTH AFRICA.

GREAR: Add (Rhynchosia and Eriosema) .

HOOPER, N. H. , Department of Biology, University of Oregon, Eugene, OR
97403 USA.

JIMENEZ A., J., Calle Meximo Gomez 34, Santiago de los Caballeros,

Republica Dominicans, ANTILLAS.

KALIN DE ARROYO, M. T. , Escuela de Biology, Facultad de Ciencias, Univ.
Central de Venezuela, Apartado 10098 Caracas, VENEZUELA.

KING, R. M. , 5432 Connecticut Ave., N.W. , Apt. 702, Washington, DC 20015
USA.

LACKEY, J. A., Department of Botany, Iowa State Union, Ames, IA 50010 USA.

LANGE, C. , Missouri Botanical Garden, 2315 Tower Grove Avenue, St. Louis,

M0 63110, USA.

LASSEIGNE, Alex, Department of Botany, Iowa State University, Ames, IA
50010 USA (Neo-tropical Cassia) .

LONG, C. R. , New York Botanical Garden, Bronx, NY 10458 USA.

LOS ANGELES STATE & COUNTY ARBORETUM, 301 North Baldwin Ave. , Arcadia, CA
91106 USA.

MANNETJE, L.’t, Sciro, Mill Road, St. Lucia, Brisbane, Queensland 4067,
AUSTRALIA.

MEIJER, William, College of Arts and Sciences, School of Biological Sciences
University of Kentucky, Lexington, KY 40506 USA.

NATIONAL AGRICULTURAL LIBRARY, Current Serial Records, USDA, Beltsville,

MD 20705 USA.

NORTHINGTON, D. K. , Department of Biological Sciences, Texas Tech University
Lubbock, TX 79409 USA.

PALMER, R. G., Department of Agronomy, Iowa State University, Ames, IA
50010 USA.

-4-

PERINO, C. H_. , Department of Botany, North, Carolina State, Raleigh, NC
27607 USA.

PODLECH, D., Institute of Systematic Botany, University of Munich,
Menzingerstr . 67, D-8000 MUNCHEN 19, GERMANY (Astragalus) .

PONERT, J., Hortus Botanicus Subtropicus Batumensis, Machindjauri
Adjarskoi A.S.S.R. , SU-384533 SOVIET UNION.

LIBRARY OF RIJKSHERBARIUM Schelpenkade 6, Leiden, NETHERLANDS.

ROBBERTSE, P. J. , Department of General Botany, University of Pretoria,
Pretoria 0002, REPUBLIC OF SOUTH AFRICA.

ROSENTHAL, G. A., Dept. Biological Sciences, Univ. of Kentucky, Lexington,
KY 40506, USA (non-protein amino acids of legumes).

ROSS, J. H. , Royal Botanic Gardens and National Herbarium, South Yarra
3141, Victoria, AUSTRALIA.

ROYAL BOTANIC GARDENS & NATIONAL HERBARIUM, Birdwood Avenue, South. Yarra,
Victoria, 3141, AUSTRALIA.

RUDOLPH, A. W., Battelle Institute, 505 King Ave., Columbus, OHIO 43201
USA.

SALEH, N. , A. M. , C/0 Prof. H. Grlsebach, Biologisches Inst. II, Lehrstuhl
fur Biochemie der Pflanzen, University Freiburg, Freiburg, W. GERMANY
(Phytochemistry) .

SCHREIBER, A., Botanlsche Staatssammlung, Menzingerstr. 67, D-8000
MUNCHEN 19, FEDERAL REPUBLIC OF GERMANY (Southwest Africa Legumes).

SHARMA, S. K. : (printed "Shama, S. K.M in No. 1) (Indian species Phase plus

& Vigna) .

STACE, C. A., Botanical Laboratories, Univ. Leicester, Leicester, LEI 7RH,
ENGLAND.

STANKEVICZ: Correct No. 1 to read (Cytotaxonomy and biosystematics of

Vicia ) .

THOTHATHRIA, K. , Editor of Publications, Botanical Survey of India,

Howrah 3, INDIA.

TINDALE, M. D. , Royal Botanic Gardens, Sydney, N.S.W. 2000, AUSTRALIA.

TURNER, R. M. , Geological Survey, USDA, 301 West Congress Street, Tucson,

AZ 85717 USA.

WAINWRIGHT , C. M. , Department of Plant Sciences, University of California,
Riverside, CA 92502 USA.

-5-

WELSH, S., Rm. 113-B49 Herbarium, Brigham Young University, Provo, UT
84602 USA.

WILBUR , R. L., Department of Botany, Duke University, Durham, NC 27706
USA.

WUNDERLIN, R. P. , Department of Biology, University of South Florida,

Tampa, FL 33620 USA (Bauhinia) .

YAKOVLEV, G., Chemical— pharmaceutical Inst., 14, Prof. Popov Street,

197022, Leningrad, USSR.

YNTEMA: Add (Taxonomy and medicinal uses of Caribbean legumes).

*****************************

GLEANINGS FROM DATA COLLECTING SHEETS. For addresses see readers list.

AREVALO DE DELGADO has completed a nutritive study of Medicago sativa, is
studying "esparteina" in Spartium j unceum and interested in medicinal uses
of legumes. Will supply seeds and specimens in return for text "Taxonomy"
by L. Benson.

BERNARD would like to exchange Glycine seeds.

CORBY has viable Rhodesian legume seeds; wants viable legume seeds from
out-of-way places for studies of nodule-form.

DUNN has 8 graduate students working on facets of New World Lupinus ;
starting on South American taxa and looking for collaborators. Plans to
collect in Mexico and Central America for next 3 summers. Recently com-
pleted studies include L. latif olius (K. Vaughn), L_. mexicanus (R. Rafaill),

.L. andersonii-L. albicaulis (M. Conrad) , and L. montanus (Dunn and Harmon) ,
New project-genetic studies of F2 populations of ^L. mexicanus x L. campestrls .
GEESINK will collect in S. E. Asia during 1976.

GRANT has issued Lotus Newsletter No. 5, 1974.

GREAR is now Curator of Vascular Plant Herbarium (TRT) ; has finished
Eriosema and completing New World Rhynchosia.

GUNN has completed typescript of Vicia of Mexico and Central America, has
reclassified Medicago sativa s.l. in USDA’S Plant Introduction Program,
and now is finishing a survey of flowers of Vicieae.

HARDING has completed alkaloid and isozyme variation in Lupinus nanus and
starting on a study of the autofertility of the annual lupines, esp. of
California. Interested In collaborating on study of lupine pollination-
ecology. Will be in Puerto Rico through July 1976 to study tropical
pollination systems.

HEGANUER has started on manuscript of Vol. 7, "Chemotaxonomie der Pflanzen".
Will try to supply European seed samples.

HEYN, PLITMANN, & RUDD have started on Lupinus of Middle East. Want viable
seed samples (20-30 seeds) of cultivated Old World Lupinus.

HUNZIKER is in Rome for 6 months as an FAO consultant on "Genetic Resources
of Crops"; in press a study of cytogenetics of some taxa in Prosopis.

ISELY has the U. S. caesalpinioids (part 2 of legume flora of U. S.) in
galley proof and preparing part 3 (Sophoreae, Trifolieae, Loteae, Galegeae
& Podalyrieae) .

-6-

KALIN DE ARROYO has completed Harpalyce and started on Andira (monograph)
and Copaifera publflora (ecological genetics). Would like Copaifera seeds
from extra-Venezuela areas; samples should he from individual trees. Can
supply seeds and herbarium material but needs specific instructions. Has
been elected V. P. , Sociedad Botanica de Venezuela.

KINGSOLVER studies bruchid beetles, many of which feed on legume seeds;
working now on seed beetles of Prosopis in Western Hemisphere. Needs
specimens of beetles reared from known hosts, preserved in alcohol or dry
in cotton or tissue.

KRUKOFF wants at least 30 grams of seeds for amino acid analysis (write for
want-list) . Now have more than 1000 samples representing nearly half of
knoi\ra legume genera.

LARSEN, K. has revised Caesalpiniaceae for "Flora Thailand", working with
S. Larsen on the family in Cambodia, Laos, and Vietnam; wants Caesalpiniaceae
seeds and wood samples.

LARSON, S. has completed pollen study of Thai Bauhinia and working on pollen
of genus in Australia and. Asia.

LEDINGHAM offers seeds and herbarium specimens of many species of Astragalus .
LEE screening Malaya legumes for lectins; will supply local seeds and
specimens; wants 50 gram seed samples with voucher from S. E. Asia. Elected
a Fellow of Linnean Society.

LESINS has completed a study of carotenoids in petals of perennial species
of Medicago, and has returned from collecting trip in North Africa. Offers
Medicago seeds.

PLITMANN see Heyn.

REID has issued Soybean Genetics Newsletter, Vol. 2, 1975.

RUDD see Heyn

ST. JOHN awarded Garden Club of American Medal of Honor for contributions
to horticulture.

SCHREIBER has begun a revision of the South African genus Lebeckia Thunb.
(Papil.-Genisteae) .

STANKEVICZ has two papers in press on Caucasian and Siberian Vicia and
started on Vicia for "Cultural Flora of USSR"; would like to exchange
herbarium specimens and seeds of Vicia and Lathy rus , and receive American
legume literature; will collect in Carpathian Mountains, Crimea, and West
Caucasus in 1976.

STEIN published a study of shoot apex of Hymenaea courbaril; starting on
Colophospermum mopane and Guibourtia coleosperma. Wants FAA-preserved
shoot-tips of Cynometreae - Amherstieae; can supply seedlings of above
genera.

STIRTON has completed Eriosema cor datum-complex; wants to exchange Eriosema
seeds; needs viable seed of non-African Rhynchosia, Eriosema, Flemingia,

Ca j anus , and Atylosia. Cannot find Ann. Mus. Congo B. Bot, ser. 6, 1
(1934) (paper on Congo Eriosema by P. Staner & A. de Craene). Recent M.Sc.
(cum laude) .

VASSAL and collaborators have concluded studies of evolutionary trends in
Acacia, as well as on its cytology and taxonomy. New projects include
seeds /seedling morphology of a group of Acacia species and of the genus
Parkia and the chorology of another group of Acacia from Africa. Seeds In
100-200 gram samples needed of the Filicinae part of Acacia (American

-7-

species), with vouchers, pods, and flowers from same tree; also viable seeds,
herbarium specimens, flowers collected at night if possible in alcohol of
Parkia species. Awarded Prix de Coincy of the Societe Botanique de
France for research on Acacia.

VERDCOURT will be preparing legume handbook for Papua-New Guinea and will be
collecting there, starting Jan. 1976.

VIDAL has completed revision of Asiatic Caesalpinia.

WUNDERLIN now Curator of herbarium Univ. South Florida; wants viable seed
of Bauhinia .

YNTEMA and others are preparing natural history guide for Virgin Islands and
part of Puerto Rico; can supply some material.

Anyone having access to viable seeds of Trifolium stolonif erum, please
contact Marion Cole (1224 Norman Lane, Deerfield, 111. 60015) who Is re-
establishing prairie vegetation in small plots where it has been destroyed.

*****************************

RECENT LEGUME LITERATURE. Legume oriented publications or notices sent to
the BEAN BAG will be listed herein. As space and time permits, some entries
may include an abstract or additional key words. Authors are encouraged
to note additional key words, or to include a 10-20 word abstract, if
needed to augment title. Requests for publications should be sent to the
authors (see membership list for addresses) of the publications. The
following are mostly taken from the data-forms but only post-1972 papers
are listed In order to restrict this section to manageable proportions.

BRAVATO, M. 1974. Estudio morphologico de frutos y semillas de las
Mimosoideae (Leguminosae) de Venezuela. Acta Bot. Venez. 9: 317-361.

CORBY. 1975. A method of making a pure-culture, peat— type, legume
inoculant, using a substitute for peat. I.B.P. Series 7: 169-173.

. 1974. Systematic implications of nodulation among Rhodesian legumes.

Kirkia 9: 301-329.

COWAN. 1974. A revision of the genus Bocoa (Caesalpinioideae-Swartzieae) .
Proc. Biol. Soc. Wash. 87: 95-128.

. 1975. A monograph of the genus Eperua (Leguminosae: Caesalpinioideae)

Smithsonian Contrib. Bot. No. 28, 1-45.

HARDING et al. 1974. Genetics of Lupinus VII: Outcrossing autofertility,

and variability in natural populations of the nanus group. Taxon 23: 529-738.

ELLIOTT, , MANKINEN. 1974. Genetics of Lupinus VI: Reproductive

barriers in the nanus group. Taxon 23: 585-594.

MANKINEN, , ELLIOTT. 1975. Genetics of Lupinus VIII: Variations in

the occurence of alkaloids in natural populations of Lupinus nanus . Taxon
24: 415-429.

KALIN DE ARROYO. 1975. Systematics of the legume genus Harpalyce (Leguminosae
Lotoideae). Mem. New York Bot. Gard. 26: in press.

LASSETTER. 1975. Taxonomic status of Vicia hassei (Leguminosae). Madrono
23: 73-78.

LEDINGHAM. 1973. Chromosome numbers of some South American species of
Astragalus. Kurtziana 7: 27-37.

-8-

LEE et al. 1975. Lectins, in some Malaysian legume species. Malaysian J.

Sci. in press.

ST. JOHN. 1973. List and summary of the flowering plants in the Hawaiian
Islands. Pacific Trop. Bot. Gard. Mem. 1: 1-519.

SCHULTES et al. 1975. The Winged Bean — a high-protein crop for the tropics.
Obtainable free from: Commission on International Relations (JH215), National

Academy of Sciences, 2101 Constitution Avenue, NW, Washington, D.C. 20418
USA.

What legume has high-protein roots (15%), high-calcium pods (.06-0.3%),
high yields (2000 kg /ha) of high-tocopherol seeds rich in relatively
unsaturated oils (15-20%) and lysine-rich proteins (35%), leaves high in
protein (5-15%); flowers, when fried, that taste like mushrooms, and roots that
fix a lot of nitrogen without inoculation? Winged bean! Why don’t they
develop a cultivar photoperiodically suitable for higher latitudes? They
will! If the recommendations in this useful report are followed, this
promising crop will get the best in taxonomic study, germplasm collection,
and genetic improvement.

SCHREIBER. 1974. Uber die identitat von Lebeckia elongata Hutch.
(Papilionaceae - Genisteae). Mitt. Bot. Munchen 11: 579-584.

. 1973. Nachtrag i Zu den familien 58—60 (Leguminosae) in "Prodroraus

einer flora von Sudwestaf rika. " Mitt. Bot. Munchen 11: 115—152.

STACE. (with E. Hollings). 1974. Karyotype variation and evolution
in the Vicia sativa aggregate. New Phytol. 73: 195-208.

STEIN. 1975. The shoot apex of Hymenaea courbaril (Leguminosae). Am.

Jour. Bot. 62(3): 303-310. '

VASSAL. 1975. Histologie comparee des teguments seminaux dans quelques
especes dT Acacias africains. Boissiera 24: 285—297. 1975. (Study of seed-

coat morphology of 31 spp. Acacia showed correlation of variation in some
morphological and histological characters which were used to elucidate
evolutionary trends in this part of the genus).

. Sur quelques nombres chromosomiques nouveaux dans le genre Acacia.

(Place and date of publication not given) . (Chromosome numbers for 51
species are reported for the first time) .

VAN STEENIS. 1975. Revision of Sympetalandra. Blumea 22: 159-167. Key
to five genera of Dimorphandreae.

VIDAL and THOL. 1974. Revision du genre Pterolobium. Bull. Mus . Nat.

Hist. Nat. (Paris), ser. 3, 227. (Bot. 15): 1-29.

*****************************

IDENTIFICATIONS . Following are the names of specialists who have expressed
willingness to identify legumes and the groups they will accept. Arrangements
should be made directly with them, in advance of shipment, using the addresses
in BB-1/2 : .

BARNEBY. Brazilian Cassia.

COWAN. Tropical South American Caesalpinioideae.

DUNN. North American Lupinus .

GEES INK. S. E. Asian Millettia, Fordia, Antheroporum, Whitf ordiodendron,
and Perris .

GREAR. New World Eriosema and Rhynchosia.

-9-

GUNN. Vicia,

HARDING. Annual Lupinus of California.

HEYN. Annual Medicago , Lotus, subg. Edentolotus except L. corniculatus
complex.

ISELY. U. S. mimosoids, casesalpinioids , Soptioreae, Trifolieae, Loteae,
Galegeae, and Podalyrieae.

KALIN DE ARROYO. Earpalyce, Andira.

LARSEN, K. S. E. Asian Bauhinia, Cassia, Peltophorum, Acrocarpus, Afzelia,
Cynonetra, Delonix, Koompassia, Parkinsonia, Sindora, Tamarindus, Zenia.

LARSEN, S. Asian Bauhinia, Cassia.

LED INGHAM. Astragalus.

LESINS . Medicago .

SCHKEIBER. Leguminosae from South West Africa.

STANKEVIZ. Vicia of USSR and nearby areas.

STIRTON. South African Eriosema.

VERDCOURT. Phaseoleae, Hedysareae in East & Central Africa and Flora
Zambesiaca area.

WUNDERLIN. Bauhinia of New World.

*****************************

International Conference on Legumes. An international conference devoted
to the classification of Leguminosae (Fabaceae; including Caesalpinioideae
and Mimosoideae) will be held at the Royal Botanic Gardens, Kew, Summer
1978. The theme of the conference will be the generic classification of
the family, taken in the broad sense, and contributions emphasizing various
lines of evidence will be presented. Participation and the presentation of
papers will be by invitation, but those interested are invited to contact
one of the members of the organizing committee, listed below. Among the
papers to be presented will be ones dealing with wood anatomy, cytology,
seed morphology, geography, and many aspects of the chemistry of the family.

For the purpose of making the chemical, cytological and anatomical
survey as broad as possible, samples of seeds associated with herbarium
vouchers are solicited. Small samples are welcome, but those of up to 300 g
are preferred. Such samples may be sent either to Dr. B. A. Krukoff c/o The
New York Botanical Garden, Bronx, New York 10458, or to Dr. P. H. Raven at
the address given below. Samples from the Southern Hemisphere and the Tropics
are especially welcome and either Dr. Krukoff or Dr. Raven may be consulted
for further details concerning the collection of samples.

A draft synopsis of the Leguminosae at the generic level will be prepared
by Dr. R. M. Polhill and circulated during. 1976. Revisions and comments on
this draft as available upon application to Dr. Polhill, are earnestly
solicited and will be taken into account in preparing a further draft which
will provide the basis for discussions at the conference. If is hoped that
the proceedings of the conference themselves will result in the preparation
of an improved and revised classification of the family.

Organizing Committee: Mr. J. P. M. Brenan and Dr. R. M. Polhill, Royal

3otanic Gardens, Kew, Richmond, Surrey TW9 3AE, Great Britain, and Dr. P. K.
Raven, Missouri Botanical Garden, 2315 Tower Grove Avenue, St. Louis, MO 63110.
********************* ********

-10-

Legume research at the New York Botanical Garden. The long-term project
of revising Cassia of the New World, initiated by Dr. Howard S. Irwin,
President of the Garden, while a doctoral student at the University of
Texas in 1959, continues underway, currently with collaboration of Dr.

David Giannasi (flavonoid systematics) and Mr. Rupert Barneby (taxonomy).

An account of sects. Absus (160 spp) and Grimaldia (1 sp) is being readied
for publication and the preliminary taxonomic study of sect. Chamaecrista
(at least 50 major spp, some internally very complex) is well advanced,
and when done will complete a modern census of subgen. Lasiorhegma Benth.
of the Americas. Irwin and Barneby recently submitted an account of Cassia
for the Flora of the Chihuahuan Desert edited by Dr. M. C. Johnston. Work
at the Garden on Cassia is supported by research grants from the National
Science Foundation.

Mr. Rupert C. Barneby, Research Associate, also sustains a long-
time interest in the tribes Astragaleae, Amorpheae and Psoraleeae . His
revision of Dalea and related genera will be published as a volume of the
Memoirs within a year.

Dr. B. A. Krukoff actively curates the genus Erythrina at the Garden
and promotes ancillary studies in the chemistry, cytogenetics, palynology
and floral biology of the genus. A supplement to his Conspectus of Erythrina
published in September 1974, is being prepared with the cooperation of Dr-
Peter H._ Raven. Dr. Krukoff is also deeply engaged in furthering the- Legume
conference schedule to be held at Kew in 1978. He coordinates a collection
of legume seeds from all. parts, of the world with the aim of obtaining data
on chromosome number, seedling morphology, antibiotic and anticarcinogenic
properties, and germination technique. While the seeds pass through the
Garden they are being processed by a group of specialists widely scattered
over the United States and England. Dr. Ghillean T. Prance, while stationed
at Manaus in 1973 - 75, contributed materially to Dr. Krukoff* s seed
collections .

Dr. Thomas S. Elias, Assistant Director of the Garden's Cary Arboretum,
sustains arr active interest in Inga Scop. A comparative study of the - -
structure and function of extrafloral nectaries, of which the petiolar glands
of Mimosoid and Caesalpinioid Leguminosae are conspicuous examples, is Under-
way under his direction at the Arboretum.