APPENDIX IV — continued 
PORTUGAL 
PUERTO RICO 
RHODESIA 
SOUTH AFRICA 
SPAIN 
TAIWAN 
THAILAND 
TUNISIA 
U.A.R. 
U.K. 
U.S.A. 
USSR. 
Instituto Botanico der Universidade, Coimbra. 
Federal Experiment Station, Mayaquez. 
Botanic Gardens, Salisbury. 
Mr. I. E. A. Carver, Durban. 
Mr. lose Equilleor Sorres, Madrid. 
Hengchun Tropical Botanic Gardens. 
Mr. Nartholeo Elumawong, Bangkok. 
Service Botanique, Ariana. 
Orman Botanic Gardens, Giza. 
University of Aberdeen, Scotland; University of Reading, 
England. 
California Institute of Technology, Pasadena; Tucson 
Botanic Gardens, Arizona; Mr. W. J. Brudy, Cocoa 
Beach, Florida; Department of Agriculture, Pasadena, 
California; Honolulu Botanic Gardens, Hawaii; Bo- 
tanic Gardens, Arcadia; University of California. 
Hortus Botanicus, Kiev; Botanical Garden of the Aca- 
demy of Science, Armaniae; Hortus Botanicus, Tomsk; 
Hortus Botanicus Academiae Scientarium, Askhabad; 
Hortus Botanicus Scientarium, Mosqua. 
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