230 UNITED STATES AND MEXICAN BOUNDARY. 
solitaria inferne tereti brevi-bracteata cum squamis oblongis obtusiusculis dorso excepto cas- 
taneis; pistiliferis 2-sublaxifloris, superiore sessili illi contigua, infima interdum sub-remota 
vaginata exserte pedunculata ; perigyniis/ (2- vel raro 3-stigmaticis lato-ovatis oblongis convexo- 
concavis acutiusculis vix rostratis ore integris vel subbifidis subvillosis nervosis, squama lato- 
ovata acuta vel inferiore mucronata paulo longioribus ; foliis vaginatis culmum superantibus.— 
Mountains east of San Diego, California, Parry. Culm 8-10 inches high, scabrous above, leafy ; 
leaves flat, rough on the edges, sheathed to the base and longer than the culm ; the lower scales 
of the perigynium sometimes mucronate and equal to it; the achenium ovate or obovate and 
convex above. In species where the stigmas are commonly two but sometimes three, the ache- 
nium has the lenticular shape belonging to two stigmas, probably the other stigma being 
. abortive. 
CAREX RECTA, Boott; Hook. Fl. Bor. —Amer, 2, p. 220, 4. 222, no. 95. Rio Mimbres, New 
Mexico, Мау; Thurber. 
CAREX STRICTIOR, Dew. С. stricta, var. strictior, Carey in Gray's Man. Rio Mimbres, New 
Mexico, May ; T'hurber. | 
Carex stricta, Lam. Rio Mimbres, New Mexico, June ; Bigelow. . 
77 «i. CAREX Emory (Dewey): spicis staminiferis terminalibus ternis oblongis cylindraceis erectis, 
ee ) superiore longiore brevi-pedunculata, inferioribus sessilibus brevioribus illi contiguis brevi-brac- 
~ teatis, densifloris, omnibus cum squamis oblongis obovatis obtusis castaneis ; spicis pistilliferis 
4 longo-cylindraceis densifloris sessilibus longo-foliaceo bracteatis, superioribus apice stamini- 
feris, infima omnino fertili et subremota; perigyniis distigmaticis ellipticis basi teretibus apiculatis 
vel brevi-rostratis ore integris squama ovata oblonga subacuta duplo longioribus ; culmo superne 
scabro; bracteis evaginatis margine scabris; planta pallido-viridi vel glauca.—The staminate 
spikes are rather short and contiguous, the upper longest and sub-clubform ; pistillate spike 4, * 
rather long, 13-2 inches, cylindric, erect, sessile, staminate at the apex and bracteate, the lowest 
wholly fertile and slightly sheathed and nearly sessile; perigynium narrow-elliptic, tapering 
below, flattish, obovate and apiculate or short and round, rostrate, at the orifice entire, stigmas 
two ; pistillate scale ovate, oblong, acutish, half as long as the fruit; culm triquetrous, scabrous 
ун bracts scabrous оп the margin, long and leafy and surpassing the culm, whole plant 
pale green or glaucous. On the upper Rio Grande; Bigelow. 
CAREX DECIDUA (Boolt. in Linn. Trans. 20, p. 119): spicis 3-6 erectis cylindraceis gracilibus 
atro-purpureis, suprema staminifera brevi-pedunculata claveeformi omnino stamina habente vel 
sepe basi aut interdum medio pistillifera, cum squamis oblongis obovatis obtusis dorso albi- 
nervosis; pistilliferis 1-5, interdum 1-3, sessilibus bracteatis, superioribus 1—8 brevibus parvis 
contiguis apice staminiferis, inferioribus 2-3 longioribus subremotis foliaceo—bracteatis ; 
perigyniis distigmaticis oblongo-ovatis vel partim obovatis rostellatis inferne teretibus nervatis 
ore integris, squama oblonga obtusa dorso pallida subduplo longioribus. Banks of rivers, 
Santa Barbara, California; Parry.—Culm 1-1} foot high, triquetrous and very rough on the 
edges above, leafy towards the root, and sheathed, rather slender ; staminate spike single, about 
11 inch long and rather thick, short-pedunculate, often pistillate at the base, and sometimes 
in the middle, or both, the rest destitute of pistils; pistillate spikes erect, sessile, rough- 
bracteate, varying in number, sometimes 1-3 short and approximate, and near the staminate 
having stamens at the apex with two or three and longer spikes below not androgynous, some- 
times only two or three pistillate spikes, of which the upper is short and the lower longer and 
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