NEW OR NOTEWORTHY GRASSES 
301 
Torresia mexicana (Rupr.). Ataxia mexicana Rupr.; Fourn. Mex. 
PI. 2: 71. 1886. 
Torresia odorata (L.). Holcus odoratus L. Sp. PI. 1048. 1753. 
Torresia pauciflora (R. Br.). Hierochloe pauciflora R. Br. Suppl. 
App. Parry's Voy. 293. 1823. (Chloris Melvilliana.) 
Artstida adscensionis L. Sp. PI. 82. 1753. A. humilis H. B. K. 
Nov. Gen. & Sp. i: 121. 1816. A. hromoides H. B. K. op. cit. 
122. 
The type of the earHest name is from the island of Ascension, the 
type of A. humilis is from Cumana, Venezuela, the type of A. hrom- 
oides from the equatorial Andes. The three names appear to apply 
to the same species, which ranges throughout tropical America and 
in the warmer parts of the Old World. 
Stipa pulchra n. sp. 
A cespitose perennial; culms scaberulous or smooth, pubescent 
below the nodes, mostly 60 to 100 cm. high; sheaths smooth or 
scaberulous; ligule truncate, 2 to 3 mm. long, or shorter on the in- 
novations; blades fiat or soon involute, I to 4 mm. wide, pilose above, 
scaberulous beneath; panicle open, 10 to 30 cm. long, the main axis 
smooth or scaberulous, the branches slender, scaberulous, ascending 
or spreading, somewhat fiexuous, mostly in pairs, naked below, the 
lower 8 to 15 cm. long, sometimes pubescent around the axils; spike- 
lets loosely clustered toward the ends of the branches, the branchlets 
slender, the ultimate lateral pedicels 2 to 3 mm. long; glumes nearly 
equal, usually purple, attenuate-pointed, about 15 mm. long, the 
lower 3-nerved, the upper 5-nerved; lemma oblong, including the 
narrow sharp pilose callus 8 to 10 mm. long, pubescent in lines from 
below to about the middle or somewhat pubescent all over, the surface 
minutely tuberculate, the apex somewhat constricted into a neck, the 
edge of this ciliate with erect hairs; awn 6 to 8 cm. long, twice genicu- 
late, appressed pilose to the first bend, scabrous above, the terminal 
segment slender and fiexuous. 
Type specimen in the U. S. National Herbarium, no. 416590, 
collected in a railroad cut three miles south of Healdsburg, Sonoma 
County, California, April 9, 1902, by A. A. Heller (no. 5252). Com- 
mon in California throughout the state at lower altitudes. This 
species has been referred to S. setigera Presl.^ The latter differs in 
having a fruit 6 mm. long with a well-marked neck, with a crown 
merely toothed and not long-ciliate, and with an awn only about 5 cm. 
" Rel. Haenk. i: 226. 1830. 
