STIPA LEMMONI JONESII var. nov. A small form of the species with rather 

 more slender culms and panicles, and spikelets, with the outer glumes 7-8 

 mm. long and flowering glumes about 6 mm. long. This variety is repre- 

 sented in the National Herbariimi by Nos. 3563, L. Schoenfeldt, collected at 

 Laguna, Cal., June 4, 1894; 49, J. W. Blankinship, collected at Mount San 

 Hedrim, Mendocino County, Cal. ; 3298, Marcus E. Jones, collected at Emi- 

 grant Gap, Cal., June 28, 1882 (type). There is also a specimen from Mari- 

 posa County, Cal., collected by J. W. Congdon, June 4, 1897. 



BOUTELOUA PRINGLEI sp. nov. 



A rather slender, apparently csespitose and erect perennial 10-14 dm. high, with 

 flat, pilose leaves, and many, usually spreading or reflexed spikes scattered 

 along the common axis forming a somewhat one-sided raceme 10-30 cm. long. 

 Culms and nodes glabrous, sheaths papillate-villous, at least above, with long, 

 lanate hairs ; lower portion of the sheaths usually glabrous ; ligule very short. 

 Upper surface of the leaves strongly papillate-pilose along the nerves, less 

 strongly so on the under surface. Spikes 30 to 50 or more, approximate along 

 the common axis, the lower ones somewhat remote, axis of spikes 0.5-3 cm. 

 long, bearing 6-20 spikelets, apex more or less deeply cleft, the divisions 

 subulate ; these axes sometimes branched again, the secondary axes bearing 

 2-3 spikelets. Spikelets 4-5 mm. long ; outer glumes very unequal, the first 

 nearly subulate, 3-4 mm. long, the second lanceolate-oblong, 4-5 mm. long, 

 short-awned at the apex, silky hairy on the back, strongly 1 -nerved, hairs 1 

 mm. long or more ; flowering glumes nearly 4 mm. long, 3-nerved, 3-toothed 

 at the apex, the teeth about equal in length, the lateral ones awn-like, rather 

 densely pilose hairy on the back, especially along the margins. Palea as long 

 as its glume, 2-toothed, finely pubescent on the back. Rudiment very small, 

 usually reduced to a mere pedicel. Mountains of Iguala, Mexico, No. 8374, 

 C. G. Pringle, 1900. 



This species is very closely allied to Bouteloua curtipendula, from which it is at 

 once distinguished by its densely villous-hairy sheaths, and pilose outer and 

 floral glumes. 



BOUTELOUA HIRTICULMIS Scribn. sp. nov. 



An erect or ascending, caespitose perennial, 4-6 dm. high, with long leaves, hir- 

 sute culms, and 2 to 4 spreading, often reflexed, densely flowered purple 

 spikes 3-5 cm. long. Culms simple, striate, very densely hirsute below with 

 spreading hairs, about 2 mm. long, the upper portion of the culm glabrous 

 or nearly so ; nodes bearded with few short appressed hairs, or nearly glab- 

 rous; sheaths usually shorter than the internodes, striate glabrous, or the 

 lower ones, which are crowded, with few scattered hairs ; ligule a very short 

 ciliate ring; leaf -blades linear, firm, 1-2.5 dm. long, 3-4 mm. wide, glabrous 

 beneath, usually with few scattered papillate hairs on the upper surface, 

 scabrous on the margins. Panicle exserted, axis sparingly pilose; spikes 

 with the short strongly-bearded pedicels, the rachis continued beyond the 

 spikelets, the continuation 1.5-2 cm. long, awn-like. Spikelets numerous, 

 crowded ; empty glumes lanceolate, acuminate, the first thin, smooth, about 

 3 mm. long, the second about 5 mm. long, with a row of dark or black 

 glands on each side of the mid-nerve, each emitting a long hair ; flowering 

 glume pilose with appressed scattered hairs, about 5 mm. long, 3-lobed, the 

 lobes awn-pointed, the middle one 3 mm. long, the lateral ones about 2 mm. 

 in length ; sterile rudiment on a short x^edicel, naked, consisting of three 

 imperfect glumes and three scabrous awns. 



Type specimen collected in the Sierra de San Francisquito Mountains, Lower 

 California, No. 11 T. S. Brandegee, September 29, 1899; same locality, No. 

 30 T. S. Brandegee, October 18, 1890. 



