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A. S. HITCHCOCK 
long. The origin of Presl's type is not known. It does not quite 
agree with any North American species. The above notes were taken 
on the type in the Bohemian National Museum at Prague. 
Kneucker^ states that the species that has been called Stipa 
setigera is S. tenuis Philippi. I have examined a duplicate type 
specimen of S. tenuis and find that it differs from S. pulchra in several 
important respects. The glumes are shorter and the awns are capil- 
lary, flexuous, but not geniculate. 
Stipa lepida n. sp. 
A cespitose perennial; culms erect, smooth or scaberulous, pubes- 
cent below the nodes, 50 to 80 cm. high; sheaths smooth or scaberu- 
lous, or sometimes a little pubescent, more or less villous at the mouth; 
ligule a narrow membrane about 0.5 mm. long; blades flat, more or 
less involute in drying, 10 to 30 cm. long, i to 4 mm. wide, pubescent 
above, smooth or scaberulous beneath; panicle loose, 10 to 13 cm. 
long, the axis smooth or scaberulous, the branches single or in pairs, 
or the lower sometimes in threes, spreading, scabrous, slender, naked 
below, sometimes pilose in the lower axils, the lower nodes distant; 
spikelets pale or purplish, clustered on the upper half or two thirds 
of the branches, the branchlets appressed; glumes thin, narrow, 
gradually acuminate, slightly unequal, the lower 7 mm. long, 3-nerved, 
the upper 3-nerved or faintly 5-nerved; lemma about 5-nerved, pilose 
on the callus, rather sparsely pubescent all over or glabrate above, 
narrowed toward the apex but with no distinct neck, the inconspicuous 
crown minutely ciliate; awn mostly 2.5 to 3.5 cm. long, very slender, 
minutely appressed pubescent below or nearly glabrous, scabrous above, 
twice geniculate, the bends often indistinct, the terminal segment 
somewhat flexuous. 
Type specimen in the U. S. National Herbarium, no. 733683, 
collected on an open hillside in the Santa Ynez Forest Reserve, Santa 
Barbara County, California, April 19, 1910, by Agnes Chase (no. 561 1). 
This species, common in California at lower altitudes, has been 
referred to Stipa eminens Cav.^ The latter, the type of which was 
examined at the herbarium of the Botanical Garden at Madrid, 
differs in having long ligules, the uppermost as much as 3 mm. long, 
and in having 3 or 4 more flexuous branches at each node of the panicle, 
and a more flexuous awn. A synonym is Stipa flexuosa Vasey.^ 
Stipa eminens is found on the highlands of Mexico from Puebla to 
Sonora and extends into the United States from southern Arizona to 
western Texas. 
^Al!g. Bot. Zeitschr. 19: 171. 1913. 
6 Icon. PI. 5: 42, pi. 467. f. I. 1799. 
7 Bull. Torrey Club 15: 49. 1888. 
