IjltAAlINL/E. qoi 



68. CEKATOCHLOA, Iknuv. 



cre.1, mu h flatteno.1. Ghnuc. co,„,,rasso.l-kcclej, acuto, shorter tl.au tl,e (Icet, 



t°Zl r """; ; "■'"' " '''"""'^ "'""'■""='' '"°' "'"' " P™-"-' •==>""» Mow 



e e al- nerved, and sl.ort-awned f,„„, the nearly entire tip. U„,er ,,aict nearl,: 



eqnal, strongly 2-nerved. Stan.ens 3, sometunes ndnnte. Scales oval acu.ninale 



Ovary erowned hy a hairy 3-l„hed or 3.1,„rncd appendage : styles short, attached to 



to tl!r pall "'''"'" "^ ' "'°""''" '''""'°"'- ""■"' "'''""8' •'■■•=1''^ f"™""''. ^J"""- 



T^lTV ^':^^"^"'' C-lO-floworod; florets Jathor diknt, sproadiug glSs v y 



mri V Ini". II '- 7 ^"'^'^ comprossccl-keele.1, narrowed below to a shor 

 spa ugly hairy callus, scabrous or strongly pubescent, 9-norve.l, 8 or 9 lines Ion- 



tl o\nv'l '' " "; Tl'rf 'Vr^'"' ' ''" "'^l-'- ^'^-'^^^'y '^^^-'-^ nearly quafc 



Wilkes Exi^d49l; ' ' ^'"^ "' '''^'"'' '^^- ^^ ^^-^-•'■««-S Thurber, liot. 



Ten'o-T^Tw "BohnZr'r:. ^""''""''''^ '' ""''^^T'i '' ^•■''^''" (P'ckcriv,), and Washington 

 ^^r Prai:..K '; V^''''>""'' s specn.iens appear to be the typical plant of Hooker. Tiie si.ecies 

 ^a^es greatly as to its i.iibescence on both lolinge and pan de. n some plants of the sin e set 

 Itt Z^a^'']li£'\ T' 'r' ^-r'r-Y^^'''''^ ^""'' ^^- ^^- loweTUr,,ot only sp ' i"^ 



b£-£™ !F^^^^^^ 



2. C breviaristata, IIoolc. Culm 2 to 3 feet l.igl,: leaves broa.lly linear 

 acuminate with the sheaths rough-pubescent or hairy : panicle nearly silnple, it^ 

 rays ,n clusters of 2 to o erect or slightly drooping to one side; spikelets about 

 Ollowered, pa e green, close, suberect : glumes subequal, the lower 5-nerved the 

 upper 9-nerved, more than half as hmg as the florets : lower palet 9-nerved, mostly 

 densely pubescent, and short-awned from the usually minutely 2-toothed tii) 

 upper palet shorter than the lower, ciliate, shortly 2-t()othed. — Flor. Bor.-Am. ii 253 

 t. JJ4 m-omus brevmristatus, Thurber, Bot. Wilkes Exped. 493: Watson, Bot' 

 King Exp. 389. ' 



Oreion'ri^'r'"" ^f'""""!??' ."."'^ ^""'I""" *" ^^' "'ountains of Nevada {IVal.o^,) ■ northwaitl to 

 Imtl .ft T'- " \\"''«'"';St">' Tn-ritory, Coo,.,: Very variable as to pubescence of foliage, . 

 but n. all the specimens the palcts are closely and evenlv tlothed wit h appr.'ssed hairs, which are 

 onger near the base. D.stingui.shed from any erect pani.led fo.n. of the list bv its fewer lo e.^d 

 c csely unbncate.1 sp.kc lets and the awn shorter in proportion. The specimens .show minute 

 anthers as mentioned un.ler C. ,jrnndiflo^-a , but none with long anthers iiave been m-tic-d Bronm 



p.il.,ts 7-neived; but as in this genus this is a character in which ..pikelets from the .same s|.eci- 

 me 1 may varv, it .seems probable that the species was foun.Ied upon a form of one or the other 

 01 tl.o pie.;eding with lewer nerves than usual. B. arrinnins in Herb. Torrey, from Hooker, is 

 veiy young, and not to be recognized as distinct from this species. 



