50 The Philippine Journal of Science me 



some material from Dr. Hubert Winkler from Dutch Borneo, 

 miscellaneous Bornean material from the Botanic Garden at 

 Buitenzorg, Java, and from the collections of Mr. H. N. Ridley, 

 formerly director of the Botanic Garden at Singapore. Recently 

 there has been received a small but interesting lot of botanical 

 material, chiefly representing the commercial timber trees 

 of British North Borneo, collected by Mr. A. Villamil in the 

 service of the Forestry Department of British North Borneo, 

 and finally very extensive collections from Mount Kinabalu, 

 British North Borneo, made by Chaplain and Mrs. Clemens and 

 Mr. D. Le Roy Topping, October to December, 1915. This Kina- 

 balu collection is probably by far the largest that has ever been 

 taken from that mountain by any single expedition, but the 

 material, only recently received, has not been available in the 

 preparation of this paper. 



It has been known for some years that there is a remarkable 

 phytogeographic relationship between the Philippines and the is- 

 lands to the south and southeast. Without taking into consider- 

 ation cases of special and limited specific distribution, it is only 

 necessary to enumerate some of the striking genera that are 

 known only from the indicated regions. Some of these are 

 Sararanga, Microlaena, Ascarina, Phrygilanthus, Spiraeopsis, 

 Clianthus, Wallac'eodendron, Reinwardtiodendron, Strophiobla- 

 chia, Koordersiodendron, Oncocarpus, Pleiogynium, Cubilia, Tris- 

 tira, Ganophyllum, Euphorianthus, Pimelea, Schuurmansia, 

 Eucalyptus, Osbornia, Xanthostemon, Gyrinopsis, Anompanax, 

 Lepiniopsis, and Dolicholobium. On the other hand, only four 

 genera are known from Borneo and the Philippines and confined 

 to them, and two of these hardly extend into the Philippines 

 proper. These are Philbornea, Borneo-Palawan ; Eusideroxylon, 

 Borneo-Sulu Archipelago; Clemensia; and Hallieracantha. The 

 list of species known only from Borneo and the Philippines is 

 equally poor when compared with the list known from the Philip- 

 pines and Celebes, or the Philippines and the Moluccas as a 

 group. In the year 1909 but about thirty species of the limited 

 distribution Philippines-Borneo were known 2 and but a single 

 genus, Hallieracantha. Some of the species have since been 

 found in other regions, so that this list has now been somewhat 

 reduced. Additions, however, increase the total, such as Dino- 

 chloa ciliata Kurz, Albizzia scandens Merr., Dalbergia subaltrni- 



1 Merrill, E. D. The Malayan, Australian, and Polynesian elements in 

 the Philippine Flora. Ann. Jard. Bot. Buitenz. Suppl 3 (1909) 287. 



