THE FLORA OF MANILA. 
229 
ARTHRAXON Beauv. 
ARTHRAXON QUARTINIANUS (A. Rich.) comb. nov. 
Alectridia quartiniana A. Rich. Tent. Fl. Abyss. 2 (1851) 448, t 99, 
Arthraxon ciliaris Beauv. subsp. quartinianus Hack, in DC. Monog. 
Phan. 6 (1889) 356. 
For the purposes of a local flora it is deemed expedient to consider this 
form as specifically distinct; it is not uncommon in northern Luzon, and 
has recently been found in the vicinity of Manila. 
In working over the Philippine material of this genus it was noted that 
our two forms, placed by Hackel as subspecies of Arthraxon ciliaris Beauv., 
were really much more distinct from each other than are some generally 
recognized species of allied genera. It is believed that the subspecies 
langsdorffii Hack., and the subspecies quartinianus Hack., should be held 
to be distinct species, and in accordance with the Vienna Code, the following 
new combination is necessary: 
ARTHRAXON H(SPIDUS (Thunb.) comb. nov. 
Phalaris hispida Thunb. Fl. Jap. (1784) 44. 
Arthraxon ciliaris Beauv- Agrost. (1812) 111, t, lly f. 6, 
Arthraxon ciliaHs Beauv, subsp. langsdorffii (Trin.) Hack, in DC. 
Monog. Phan. 6 (1889) 254. 
Not uncommon in northern Luzon, but not known from the vicinity of 
Manila. 
ERAGROSTIS Host. 
ERAGROSTIS MANGALORICA Hochst. ex Steud. Syn. Gram. (1854) 265. 
Eragrostis tenella^ R. & S., var. viscosa Stapf, subvar. contracta Stapf 
in Hook. f. Fl. Brit. Ind. 7 (1897) 316. 
There are two specimens in our herbarium that appear to agree 
sufficiently with this form, and as our Philippine specimens show no 
intergradations between the form with the dense, spike-like contracted 
panicle (E. mangalorica Hochst.), and the lax-panicled one {E. viscosa 
Trin.), it may, at least for local purposes, be best considered as having 
specific rank. The specimens are Merrill 371, collected in Manila, August, 
1902, and Bur. Sci. 7Jf52 Ramos, from Aparri, Province of Cagayan, Luzon. 
The former has been determined by Pilger * as Eragrostis tenella var. 
viscosa Stapf. 
SPINIFEX L. 
SPINIFEX LITTOREUS (Burm. f.) comb. nov. 
Stipa littorea Burm. f. Fl. Ind. (1768) 29. 
Stipa spinifex L. Mant. 1 (1767) 84. 
Spinifex squarrosus L. Mant. 2 (1771) 300. 
According to the provisions of the Vienna Code, this new combination is 
necessary. The oldest specific name is that supplied by Stipa spinifex L. 
(1767), but as the use of duplicate binomials is inadmissible under the 
Vienna Code, the next oldest specific name must be adopted, that supplied 
by Stipa littorea Burm. f. (1768). 
*Perk. Frag. Fl. Philip. (1904) 148. 
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