230 UNITED STATES AND MEXICAN BOUNDARY. 



solitaria inferne tereti brevi-bracteata cum sqnamie oblongis obtusiusculis dorso excepto cas- 

 taneis ; pistiliferis 2-sublaxifloriS; superiore sessili illi contigua, infiraa 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 nervosiSj squama lato- 

 ovata acuta vel inferiore mucronaia 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, 



Cakex RECTA, Boott; Hook. FL Bor-Amer. 2, p. 220, t. 222, no, 95. Eio Mimbres, New 



Mexico, May ; Thurher. 



Caeex strictior, Deia. C. stricta, var. strictior, Carey in Gray's 3Ian. Rio Mimbres, New 

 Mexico, May ; Thurher, 



Carex STRTCTA3 Lam. Rio Mimbres, New Mexico, June ; Bigeloiv, 



Carex Emoryi (Beivey) : spicis staminiferis terminalibus ternis oblongis cylindraceis erectis, 

 superiore longiore brevi-pedunculata, inferioribus sessilibus brevioribusillicontiguisbrevi-brac- 

 teatis, densiflorls, omnibus cum squamis oblongis obovatis obtusis castaneis ; spicis pistilliferis 

 4 longc-cylindraceis densifloris sessilibus longo-foliaceo bracteatis, superioribus apice stamini- 



feris, infima omnino fertili et subremota; perigyniis distigmaticis ellipticisbasi 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, l|-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 

 above ; bracts scabrous on the margin, long and leafy and surpassing the culm, whole plant 

 pale green or glaucous. On the upper Rio Grande ; Bigeloio, 



Carex decidua {Booif. in Linn. Trans. 20, p. 119): spicis 3-6 erectis cylindraceis gracilibus 

 atro-purpureis, suprema staminifera brevi-pedunculata clavaeformi omnino stamina habente vel 

 ssepe basi aut interdum medio pistillifera, cum squamis oblongis obovatis obtusis dorso albi- 

 nervosis ; pistilliferis 1-5, interdum 1-3, sessilibus bracteatis, superioribus 1-3 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 

 ed<^e8 above, leafy towards the root, and sheathed, rather slender ; staminate spike single, about 

 1| 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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