ISO 
1.2 mm. long, the hairs 2 mm. long or less. Arvn of the flowering glume 
inserted at ahont the lower fourth, 7 mm. long, scabrid, somewhat gen- 
iculate and twisted l)elow the genicidation. 
Luzon, Province of Benguet, IMoiint Tonglon (4839 Merrill) November 12, 
1905. In dry open soils at the summit of the mountain at about 2,250 m. 
Ifackel states tliat this species is closely related only to Calom.agrostis nardifoUa 
(Griseb.) Hack. {Agrosfis mtrdifolia Griseb.) of the Argentine Andes. A New 
Zealand species Cahimagrostis (Deyeuxia) selifoUa has similar leaves but quite 
other inlloreseence and spikelets. 
Hackel has suggested the name Cdlaningrostis filifolia forma cleistogama for 
specimens No. 4537 and 4715 Merrill, the former from Mount Data, Lepanto, 
and the latter from Pauai, Benguet, the specimens differing from typical C. filifolia 
in having the 0.5 mm. long antliers persisting with the ripening fruit within 
the closed glumes and palea and lodicules 0.7 mm. long. 
If we exclude Deyevxia quadriseia Benth., credited to the Philippines by 
P.-Villar, and undoubtedly not a Philippine plant, the identification apparently 
having been erroneous, then the above species is the first one of the genus to be 
rejiorted from the Philippines, the genus in genei'al being a northern one, or at 
least characteristic of the more temperate regions. 
POA L inn. 
Poa luzoniensis MerriU sp. nov. 
An erect perennial grass from long rootstocks, not at all tufted. 
CUilms 30 to 40 cm. high, glabrous, smooth, geniculate below; nodes 
glabrous; sheaths equaling or shorter than the internodes, rather loose, 
the lower ones dry and brown; ligule short,' truncate, cartilaginous; 
blades 8 to 14 cm. long, 1.5 to 2.5 mm. wide, flat, thin, glabrous, some- 
what acuminate. Panicles lax, comparatively few flowered, slightly ex- 
serted, aliout 9 cm. long, the branches few, whorled, ascending or 
s})reading-ascending,- the longer ones 3 cm. or less, filiform, each bearing 
few spikelets. Spikelets about 3.5 mm. long, green or purplish, the 
pedicels 2 mm. long or less; first glume lanceolate, acuminate, about 
2.1 ]iim. long, 1-nerved, slightly scabrous on the keel; second glume 
similar to the first but nearly 3 mm. long and 3-nerved. Flowering 
glumes 3, ovate, acute, 5-nerved, about 3 mm. long, slightly silky hairy 
on the keel below, otherwise glalirous, tlie paleas narrow, hyaline, almut 
2.5 mm. long, the rachilla glabrous. 
Luzon, Province of Benguet, Pauai (4712 Merrill) November 8, 1905. 
Tliis species was found in a large, open, natural meadow along the borders of 
a. cold stream at an altitiide of about 2,100 m., being very rare in the locality, 
and associated with Culamagrostis, Bracliy podium, Bromns, Anihoxanthmn luzo- 
niense, Agrostis elmeri, Ra-nuncuhis sp., Viola sp., various species of Garex and 
other northern tj'pes. Single, scattered specimens only were found, the rhizomes 
creeping rather extensively and generally rooting at the lower nodes. This 
decidedly northern type is an interesting addition to the known boreal element 
in the flora of northern Luzon, being the first native species of the genus to 
be reported from the Philippines. Dr. Hackel, to whom specimens were sent, 
states that it may be most closely related to the widely distributed Boa pratensis 
Linn. 
