382 BOTANY. 
creeping; culms 1-1 J'' higli, brandling at base, erect, slender, slightly scab- 
rous, hairy at the nodes, with the leaves glaucous ; sheaths close, scabrous, 
hairy at the throat, the stipule laciniate ; leaves 1-6' long, mostly convolute, 
rigid, scabrous, the upper ones short and pungent ; spike 2-3' long, erect, the 
internodes of the flexuous rachis shorter than the erect (4" long) spikelets ; 
flowers short-pedicelled or nearly sessile in the glumes ; glumes of the perfect 
spikelet ciliate, carinate, cleft nearly to the middle, the lobes 1 -nerved on the 
inner margin, with 3-5 intermediate bristles, the central one longer ; palets 
exceeding the glumes, the lower 3-nerved, bifid at the apex, short-cuspidate, 
the upper a little shorter, 2-nerved and slightly bifid ; scales linear, entire ; 
glumes of the sterile spikelets equaling the palets, the lower ciUate, slightly 
2-cleft, awned above the middle, the outer side 2-nerved, the inner margin 
much narrower and infolded, the upper glume emarginate or erose, cuspidate 
with a strong midnerve, the broader outer side also 2-3-nerved ; palets emar- 
ginate or irregularly toothed at the apex, the lower 3-nerved, the upper 
2-nerved. — The specimens diflfer from the original description and figure in 
having the palets less distinctly toothed and the glumes occasionally with but 
3 bristles. Northern Texas and Indian Territory to New Mexico and West- 
ern Arizona. Monitor Valley, Nevada, and on Carrington Island in Salt 
Lake; 4,500-5,500 feet altitude ; June, July. (1,299.) 
Eremociiloe ^ KiNGii. Very low and tufted, 1-3' high, nearly glabrous ; 
' EKEMOCHLOE. Panicle slioi t and coutracted, simple or nearly so. Spikelets 4-flowered, tlie 
two lower llowers iientral, the uppermost reduced to a stipitate villous triple awn. Glnines 2, membra- 
nous, cariuate, 1-nerved, acute, glabrous, rather exceeding the flowers, the lower a little the shorter. 
Palets membranous, the lower 2-cleft to the middle, 3-uerved, the nerves strongly villous, produced and 
aristate, the middle one longest, the lobes in the neutral florets obtuse, in the perfect flower attenuate; 
upper palet shorter, bicarinate, 2-nerved, 2-lobed or 2-toothed at the apex, imperfectly developed in the 
neutral florets. Stamens 2. Styles 2, the elongated stigmas very minutely hairy. Grain free, sessile, 
olx.vate, smooth.— Low biennial desert grasses, with fibrous roots, the sheaths bearded at the throat and 
often ciliate, the leaves short, rigid, revolute-setaceous, striate atid pungent. 
Closely allied to tbe section Trij)Jasis of Tri^usins, but the neutral florets at the base of the spike- 
b-ts, with the uppfr palet inip<>rfectly developed, the nearly naked stigmas of the single perfect flower, 
an<l the p<M'uliar nulimeutary terminal floret, seem sufficient grounds for its separation. An earlier known 
species, first collected by Wright on the Eio Grande in Southern New Mexico, was afterwards col- 
lected in the same region by Bigelow and recognized by Prof. Thurbcr as distinct from Tricusjtis, but has 
remained hitln i to unnamed and unpublished. A description and figure are appended. 
i:i:i.M<u:ui.<>E BiGKLovii. Taller, G-10' high, glabrous, the culms erect from a leafy branching 
tufted base, naked with 2-3 approximate leaves below the panicle; sheaths not ciliate; panicle subsim- 
ple, i-l' long; spikelets short-pedicelled, the flowers nearly as in JE. Kingii ; glumes 3" long, rather ob- 
tuse ; lower palets of tlu> neutral flowers slightly longer, (21" long,) the upper also longer, linear, with 
short obtuse lobes ; lower llower with a delicate very narrowly linear scale (!) exceeding the upper palet; 
upper palet of tlw perfei t llowiT rather narrower, with deeper acute entire lobes. Plate XL. Fig. 1. A 
sinub' >tem : natiu'al >i/.e. Fig. 2. Glumes, Fi- . "•!. Neutral florets. Fig. 4. A lower palet. Fig. 5. Upper 
l>alet of lower flower, with the elongate.! seale. Fig, G. Upper palet of second flower. Fig. 7. Perfect 
floret and terminal rudiment. Fig. 8. Upper palet of perfect flower. Fig, 9. Matm-e seed; aU magnified 
four diameters. 
