TWELFTH ANNUAL REPORT Q^ 



trees. As opportunity is had, work is being done also on the 

 collections of extra-Philippine plants from Borneo, Guam, and 

 China. The material from the above regions comprises the col- 

 lections made for the Bureau of Science in Sarawak, Borneo, 

 through the kindness of J. C. Moulton, Esq., of the Sarawak 

 Museum, 1,659 numbers; material from Guam secured by Mr. R. 

 C. McGregor, by Mrs. M. S. Clemens, and through the kindness 

 of Mr. J. B. Thompson of the Guam Experiment Station, 778 

 numbers; material from the Provinces of Shantung and Chihli, 

 China, collected by Mrs. M. S. Clemens, about 800 numbers; 

 and material from Annam, Indo China, collected by Dr. C. B. 

 Robinson, 555 numbers. The last collection, however, is being 

 named at the Museum d' Histoire Naturelle, Paris, France, to 

 which institution a duplicate set was sent to assist the botanists 

 there in the preparation of a flora of Indo China. 



Doctor Robinson has given much time and attention to the 

 collection and identification of botanical material on and near 

 Mount Maquiling, and in this work has the cooperation of the 

 botanists at the College of Agriculture at Los Bahos. It is 

 planned eventually to publish the results in the form of a critical 

 enumeration with keys to the families, genera, and species. This 

 work will be of very great value to the botanical department 

 and the students of botany at the College of Agriculture, Uni- 

 versity of the Philippines, as it will enable one readily to de- 

 termine the proper names of the plants found in the vicinity of 

 the College. It will also be of great assistance to Doctor Brown 

 of this Bureau, who is carrying on extensive physiological in- 

 vestigations on Mount Maquiling, in correlating his physiological 

 data with the names of the plants found in the different habitats. 

 Doctor Robinson's most important work, however, has been the 

 development of the plans botanically to explore the Island of 

 Amboina in the Molucca group, south of the Philippines, to 

 which he was assigned some months ago. Amboina was early 

 made famous in the annals of natural history by Rumpf, who 

 resided there for many years, and who there wrote his great 

 work entitled Herbarium Amboinense. This publication (1741- 

 55) has been referred to by a great many botanists since the 

 establishment of modern nomenclature, and very many of 

 Rumpf's crude figures have become, by citation, the actual types 

 of a large number of species. In critical groups it has proved 

 to be impossible for later botanists properly to interpret many 

 of these species from an examination of Rumpf's work alone, 

 and no comprehensive botanical exploration of the island has 

 been undertaken since Rumpf's death in 1702. We believe that 



