APPENDIX IX — continued 
UNITED KINGDOM 
U.S.A. 
U.S.S.R. 
YUGOSLAVIA 
ZAMBIA 
Department of Botany, St. Andrew’s University, Uni- 
versity of London, Botanical Supply Unit, Mr. 
P. J. Ferrao, Mychett; Tropical Products Institute, 
London; Mr. H. N. Brown, Hindley Green, Lan- 
cashire; The Royal Botanic Gardens, Kew. 
Mr. Rex D. Pearce, North Carolina; International 
Association for Plant Taxonomy, California; Prof. 
Grady L. Webster, Purdue University, Indiana; 
Honolulu Botanical Gardens, Hawaii; United States 
Department of Agriculture, Agriculture Research 
Service, California; Department of Arboreta and 
Botanic Gardens, Arcadia; Mr. Ladis Laus Cutak, 
Missouri Botanical Gardens; The Tucson Botanical 
Gardens, Arizona; Mr. Michael J. Koutnik, Wisconsin; 
Mr. Melvin S. Lud, Washington D. C.; Mr. Richard 
A. Hamilton, University of Hawaii; Mr. John R. 
Prybot, Massachussetts; Mr. Robert L. See, Miami; 
Mr R. J. Rodin, Biological Science Department, San 
Luis Obispo; California State Polytechnic College, 
San Luis Obispo; Mr. Richard T. Drukker, Los 
Angeles; Dr. H. Kamemoto, University of Hawaii. 
Botanic Gardens of the Academy of Sciences, Latvia; 
Botanic Gardens of the Principal Academy of Sciences, 
Moscow; Botanic Gardens of the Academy of Sciences, 
Ashkhabad; Botanic Gardens ‘Arcta-Alpinus’, Mur- 
mansk; Botanic Gardens ‘Tominianus’, Kiev; Botanic 
Gardens of the Academy of Sciences, Ervan; Botanic 
Gardens of the Academy of Sciences, Ukraine; Botanic 
Gardens, Tomsk. 
Institute for the Application of Nuclear Energy, Zemun. 
Mr. Makulu, Chilanga. 
55 
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