GRAMINEAE %3 
about the source of the Pasig River which drains Lake Bay, 
near Manila. 
Illustrative specimen from Manila, Luzon, October, 1913 (Mer- 
rill: Species Blancoanae No. 319). 
ERAGROSTIS Host 
Cyperus paniculatus Blanco Fl. Filip. (1837) 32; ed. 2 (1845) 22; ed. 3, 
1 (1877) 42, non aliorum=ERAGROSTIS VISCOSA (Retz.) Trin. 
This species is common and widely distributed in the Philip- 
pines in the settled areas at low altitudes, especially in waste 
places in and about towns; it is certainly an introduced plant 
in the Philippines. 
Illustrative specimen from Manila, December, 1913 (Merrill: 
Species Blancoanae No. 229). 
Poa japonica Thunb.; Llanos Frag. Pl. Filip. (1851) 47; F.-Vill. & Naves 
in Blanco Fl. Filip. ed. 3, 4* (1880) 34=ERAGROSTIS JAPONICA 
(Thunb.) Trin., forma. 
The proper specific name for this species is obscure, but if 
it be interpreted in the sense of Stapf in Hook. f. Fl. Brit. Ind. 
7 (1897) 317, then Eragrostis japonica Trin. is the correct name, 
sensu latiore; Thunberg’s name, Poa japonica, dates from 1784. 
‘The species is very generally named Eragrostis interrupta 
Beauv., but this was not based on Poa interrupta Lam (1791), 
but on Poa interrupta R. Br. Prodr. (1810) 180; see Beauv. 
Agrost. (1812) 175 (in index sub Poa). Poa interrupta R. Br. 
is, according to Bentham, a variety of Eragrostis brownei Nees, 
or according to Hackel a synonym of Eragrostis elongata Jacq. 
The name Eragrostis interrupta (Lam.) Doell. is untenable for 
the species. The plant that Llanos described is the form that 
is generally called Eragrostis interrupta Beauv.; it is widely 
distributed in the Philippines at low and medium altitudes, 
growing in low wet lands, along streams, ditches, etc. 
Illustrative specimen from Calumpit, Bulacan Province, Lu- 
zon, January, 1915 (Merrill: Species Blancoanae No. 709). 
Poa annua Llanos Frag. Pl. Filip. (1851) 47; F.-Villar & Naves in Blanco 
Fl. Filip. ed. 3, 4* (1880) 34, non Linn=ERAGROSTIS sp. (prob- 
ably). 
This was considered by Fernandez-Villar to be Poa annua 
Linn. but Poa annua occurs in the Philippines only as a recently 
introduced plant and at altitudes of 1,300 meters and above. 
Llanos gives no description, but rather naively remarks: “No 
he tenido tiempo de describir esta planta, pero caso no dudo sea 
este genero y especie.” He adds that it grows in irrigated lands. _ 
It is certainly no Poa, and if an Eragrostis then probably E. 
