INDEX TO PHILIPPINE BOTANICAL LITERATURE. 
By Elmer D. Merrill. 
( From the botanical section of the Biological Laboratory, Bureau of Science.) 
. The literature bearing directly or indirectly on Philippine botany is 
so extensive and so widely scattered that it has been considered advisable 
to prepare and publish from time to time lists of useful or essential works 
containing references to Philippine plants. Such lists will include short 
reviews of monographs of various genera and families that are represented 
in the Philippines, short articles, individual diagnoses, etc., and an 
attempt will be made to ^review obscure and rare papers referring to 
Philippine botany in the widest sense of the word. Special attention 
will be given to recent publications, but the older ones will not be 
ignored, if there is any special object in reviewing them. The ultimate 
object of this work is the preparation of a complete bibliography of 
Philippine botany. The list will be continued from time to time in this 
Journal. 
Ames, Oakes. Descriptions of New Species of Acoridium from the Philippines. 
(. Proc . Biol. Soc. Wash. 19 (1906) pp. 143-154.) 
Eighteen new species of Acoridium are described, all, with the exception 
of A. williamsii, based on material collected by employees of the Bureau of 
Science. The species are as follows: Acoridium unlliamsii, A. graminifolium, 
A. tenuifolium, A. tenue, A. parvulum, A. venustulum, A. strictiforme, A. 
anfraotum, A. recurvum, A. philippinense, A. turpe, A. oliganthum, A. ocella- 
tum, A. merrilli, A. longilabre, A. graciliscapum, A. cucullatum, and A. 
copelandii. 
Beccari, 0. Le Palme delle Isole Filippine (in Martelli’s Webbia (1905) pp. 
315-359.) 
An enumeration of all the palms definitely known from the Philippines, 
in which the following species and varieties are described for the first time: 
Pinanga speeiosa, P. copelandi, P. barnesii, P. elmerii, and P. ohinensis (from 
China) ; Caryota merrillii; Orania paraguanensis ; Livistona whitfordii, L. 
vidaliij Calamus mollis var. major, C. merrillii, C. siphonospathus vars. 
sublevis, oligolepis (major), oligolepis (minor) and polylepis. 
Beccari, 0. Systematic Enumeration of the Species of Calamus and Daemon- 
orops, with Diagnoses of the New Ones. (Records Bot. Surv. India 2 (1902) 
pp. 197-230.) 
In this paper 164 species of Calamus are recognized and 77 species of 
Daemonorops, of which the following are credited to the Philippines : Calamus 
spinifolius n. sp., C. mollis Blanco, C. Blancoi Kunth, C. cumingianus n. sp., 
C. mosleya/nus n. sp., C. vidalianus n. sp., C. siphonospathus Mart., G. micro- 
carpus n. sp., C. manillensis H. Wendl., and C. dimorphacanthus n. sp. Daem- 
onorops fuscus Mart., and D. gaudichaudii Mart. Calamus discolor Mart., 
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