15 
of the Kepong Forest Research Institute (Calophyllum), Professor H B 
Gilliland, University of Malaya (Singapore plants). Dr, P. B. Tomlinson of 
Leeds University (palms), Mr. M. Jacobs of Leiden (Malpighaeceae), Dr. 
J. Fogg, Director of the Morris Arboretum, United States of America 
(Rauwolfia) and Mr. N. W. Simmonds, Senior Cytogeneticist of Banana Re¬ 
search Scheme, Trinidad (bananas). 
71- Dr. Prowse, Botanist/Algologist of the Malacca Fish Culture, Re¬ 
search and Training Institute arrived in Singapore on 7th November, and 
is working temporarily in our laboratory until accommodation is available 
for him at Malacca. He has made many interesting discoveries among the 
fresh-water algae in the Gardens’ lake and elsewhere in Singapore and 
Malacca. Dr. Tomlinson of Leeds University, who is working on the anatomv 
of palms at the University of Malaya with an Agricultural Research Council 
scholarship, spent some time in the herbarium and Gardens, working in con¬ 
junction with Dr. Furtado, Assistant Botanist, a world expert on the taxonomy 
of palms. 
XIX. PUBLICATIONS 
72. The second volume of the Revised Flora of Malaya on the Ferns of 
Malaya by Professor R. E. Holttum, was printed by the Government Printer in 
1954 and issued early in the year. It embodies the results of some 30 years’ re¬ 
search on this interesting group by Dr. Holttum, together with new ideas on 
their classification, and includes an Appendix on the Cytology of one hundred 
Malayan ferns by Professor I. Manton. The volume contains 643 pages and 
some 650 species of Malayan ferns are described, while keys are provided for 
their identification. 
73. A lengthy number of the Gardens’ Bulletin, Vol. XIV No. 2 was 
published in February. This includes a long paper by Mr. Sinclair on the revised 
taxonomy of the Malayan Annonaceae. The book on Malayan Orchid Hybrids 
by G. H. Addison and M. R. Henderson, in which all the orchid hybrids grown 
in Singapore are illustrated, went to press and publication is expected in mid- 
1956. Booklet III of Malayan Garden Plants—Ten Orchids was reprinted by the 
Government Printer. The revenue from the sale of publications at the Gardens 
was $864. 
74. The following articles were published by members of the staff during 
the year:— 
Addison, G. H.—Cactus and succulents in Malaya. M.A.H.A. Mag., XII, No. 1, 
13-15, No. 2, 21-23; No. 3, 22-23. 
Addison, G. H.—New Orchid Hybrids raised and flowered in Singapore. 
M.A.H.A. Mag., XII, No. 2, 14-16; No. 3, 14-15. 
Ewart, J. W.—Saintpaulias, M.A.H.A. Mag., XII, No. 1, 16-17. 
Ewart, J. W.—Potted flowering plants. M.A.H.A. Mag., XII, No. 3, 24-27. 
Furtado, C. X.— Paltnae Maiesicae —XVIII. Two new Calamoid genera of 
Malaysia. Gardens’ Bull., XIV, 517-529. 
Gerrard, Anne (Dr. A. Johnson)—The germination and longevity of seeds in 
an equatorial climate. Gardens’ Bull., XIV, 534-545. 
Purseglove, J. W.— The Ridley Centenary. Government Printer, Singapore, 1955. 
Purseglove, J. W.—Mr. Ridley’s hundredth birthday. Nature, 176, 1092-1093. 
Purseglove, J. W.—Plants for the amateur—I. Crotalaria retusa, M.A.H.A. 
Mag., XII, No. 4, 7-11. 
Purseglove, J. W.—Ridley, Malaya’s greatest naturalist. Malayan Nature J., X, 
43-55. 
Purseglove, J. W.—Botany’s contribution to a country’s economy. Sarawak 
Tribune, 22-9-55. 
Sinclair, J.—A revision of the Malayan Annonaceae. Gardens’ Bull XIV 
149-516. 
