Agrostis schaffneri E. Fourn.

Agrostis tacubayensis Fourn. Mex. PI. Gram. 95. 1886
Perennial, culms tufted, about 30 cm. tall, the innovations numerous; sheaths glabrous; ligule of culm-leaves 3 mm. long, of the innovations 1.5 mm. long; blades of culm-leaves flat, slightly scabrous, erect, 3-5 cm. long, about 1 mm. wide or less, those of the innovations setaceous; panicle narrow, open, purple, about 10 cm. long, the branches ascending, naked below or with some short branches intermixed, the pedicels strongly scabrous; glumes somewhat unequal, acuminate, scabrous on the keel, the first longer, about 2.5 mm. long; lemma about 1.5 mm. long, awnless; palea wanting.
Type locality: Tacubaya, Federal District, Mexico (Schaffner 91). Distribution: Southern Mexico.

Agrostis schaffneri Fourn. Mex. PI. Gram. 94. 1886
Agrostis Schaffneri var. mutica Fourn. Mex. PI. Gram. 94. 1886. (Type from Mexico.)
Perennial; culms erect, glabrous, solitary or few in a tuft, 60-80 cm. tall; sheaths glabrous; ligule 3-5 mm. long; blades flat, lax, scabrous, 12-18 cm. long, 2-4 mm. wide; panicle large, oblong, at first inclosed at base in the uppermost sheath, mostly purple, 15-30 cm. long, the axis scabrous, the branches verticillate, naked below, scabrous, the lowest verticil usually with numerous branches, ascending or somewhat spreading, as much as 12 cm. long; glumes acute, scabrous on the keels, 2.5-3 mm. long; lemma 1.5 mm. long; palea wanting.
Type locality: Tacubaya. Federal District, Mexico. Distribution: Southern Mexico.