iv PREFACE 



and that the local botanical library and the herbarium date only 

 from 1902. While the library is a very excellent working unit, 

 especially for the Indo-Malaysian region, it is far from complete, 

 although practically all the publications appertaining especially 

 to the Philippine flora are represented. The herbarium, con- 

 taining upward of 250,000 mounted specimens, is especially 

 rich in Philippine material, and contains few local collections 

 made previous to 1902, except a series of approximately 1,200 

 numbers from Cuming's collections, made between 1836 and 

 1840, and a fairly large set of duplicates representing War- 

 burg's collections. However, nearly all species described from 

 the Philippines of which the types are extant are represented 

 in the herbarium by types, cotypes, fragments of authentic speci- 

 mens, photographs or sketches of types, or by critically com- 

 pared specimens. Types of none of the species described by 

 Blanco in his Flora de Filipinas, few of those described by 

 Llanos, or the few described by F.-Villar and Naves are extant. 

 The Blanco and Llanos species have been critically considered 

 in a special publication.* 



The extra-Philippine collections are relatively extensive, the 

 herbarium being rich in material from surrounding regions, 

 received in exchange and by collection, from Formosa, China, 

 Indo-China, India, Ceylon, Burma, Siam, the Malay Peninsula, 

 Sumatra, Java, Borneo, Celebes, the Moluccas, New Guinea, New 

 Caledonia, Australia, the Marianne and the Caroline Islands, and 

 Polynesia. 



Some idea of the extent and the value of the extra-Philippine 

 botanical material available in the herbarium of the Bureau 

 of Science may be had from the following data: From India, 

 Burma, Siam, Indo-China, and the Malay Peninsula, more or 

 less extensive collections are available from material secured by 

 the following collectors and botanists: Burkill, Buchanan-Ham- 

 ilton, Burn-Murdoch, Balansa, Bon, Cave, Clarke, Craib, Curtis, 

 Debeaux, Foxworthy, Eberhardt, Harmand, Gamble, Godefroy, 

 Hole, Hooker f . and Thomson, Jacquemont, Kurz, Kunstler, King, 

 King's collectors, Kerr, Kloss, Meebold, Petelot, Pierre, Prazer, 

 Rock, Robinson, Ridley, Shaik Mokim, Talmy, Thorel, Thwaites, 

 Walker, Wallich, Wight, and Wray. The flora of China, Japan, 

 and Formosa is well represented by collections made by the fol- 

 lowing individuals: Bodinier, Gallery, Cavalerie, Chun, Chung, 



♦Merrill, E. D., Species Blancoanae: A critical revision of the Phil- 

 ippine species of plants described by Blanco and by Llanos, Bur. Sci. Publ. 

 12 (1918) 1-423, map. 



