179 
about 4 mni. long', ol)long, 1-nei’ved, cleft at tlie apex, awued from the 
hack at the lower ], the awn straight, scaln-ous, about 6 imn. long; third 
lloAvering glume hroadly-ovatc, obtuse, h_yaline, glabrous, nerveless or 
nearly so, hermaphrodite, inclosing a very nan'ow palea. Anthers nar- 
rowly oblong, about 2 nrni. long. 
Luzon, Province of Benguet, Panai (4713 Merrill) November 8, 1905. 
In the same locality and with the same associates as Poa lusoniensis, and 
like tliat species a very interesting northern type. Hackel, who lias kindly 
examined specimens, states that this species is apparently related to the British 
Indian plant described by Hooker as Hierochloa clnrkei, judging from the descri]i- 
tion. The present species dill'ers from the well-known and widely distributed 
Anihoxantlmm odoralitm Linn., in its glabrous outer glumes and especially in 
the very short-awned first-flowering glume. It has the same characteristic odor 
and much the appearance of that species. 
ARUN DIN ELLA Pvaddi. 
Arundinella setosa Trim Diss. 2 (1824) 03; Hook. f. FI. Brit. Ind. 7 (1897) 
70. Danthonia liizoniensis Steud. Syn. PI. Gram. (1855) 245; IMiij. FI. Ind. 
Bat. 3 (1859) 427; Vidal, Phan. Cuming. Philip. (1885) 159; Rev. PI. Vase. 
Filip. (188(1) 282; Ceron Cat. PI. Herb. (1892) 184; F.-Vill. Nov. Ap]i. 
(1883) 319. 
Philippines (1415 Cuming) cotype of Dnnilinnia lusoniensis Steud. Luzon, 
Province of Benguet, Pauai to Baguio (4702 .Merrill) November, 1905; Bued 
River (4271 Merrill) November, 1905. 
British India to Cochin China, and southern China. 
This species is enumerated here only to call attention to the reduction of 
Danthonia lusoniensis Steud. On receipt of a specimen of No. 1415 Cuming, 
from the British Museum, I found the number to be an Arundinella, and not a. 
Danthonia. A fragment was sent to Dr. Hackel. who pronounced if to be identical 
with Arundinella. selosa. Trin. The genus Danthonia can therefore be exchided 
from the Philippines. 
CALAMAGROSTIS Adans. 
Calamagrostis filifolia Meri'ill sj). nov. § Deijeuxia. 
A densely tufted, erect grass 30 to 60 cm. high, with filiform leaves, 
and strict, densely flowered panicles.' Culms glalirous, many in each 
tuft, erect, straight, glabrous; nodes dark, glabrous; sheaths, at least the 
lower ones, shorter than the internodes, the upper one often inclosing the 
immature panicles; ligule about 2 mm. long,* subhyaline, irregularly cleft 
or lacerate ; Iflades 10 to 20 cm. long, numerous at the liase of the culms 
and on the innovations, erect, somewhat stiff, revolute, 1 mm. wide or less. 
Panicles at length exserted, pale green or slightly juirplish, many 
flowered, the lower branches appressed, often 4 cm. long, forming a 
narrow somewhat spikelike, uninterrupted ])anicle. Empty glumes sub- 
e(|ual, lanceolate, acuminate, aliout 6 mm. long, both 1-nerved, scabrous 
on the keel. Flowering glume lanceolate, 5 mm. long, niinutely scabrous. 
4-nerved, the nerves green, entire or very obscurely 2 to 3 toothed at 
the apex. Palea ecpialing the glume. Anthers 1.2 to I..! mm. long. 
Lodiciiles 1 mm. long. Ctillns hairs 1 mm. long or less; rhacbilla aboid, 
