('ni,oKII>h.K. 417 



oils l)lun'saii(l liills. occupyint,' siicli iicciiliur situations to tlio profit 

 of tilt' .st(»cl< visitin;; tlicm in tlicir Avitle nin^iiif,'. 



4. B. hirsuta La;?. Vur. t'icnc 'I: Part 4, 141 (ISOri). C/ionf/ro- 

 Slim hirhnn 11. W. K. Nov. (Icn. ct. Sp. 1 : lie,. /. J/y (isif)). 

 Ai'fitiorlihxt hii'siihi W. &. S. Syst. 'X'. 14'.t(lH17). A//ii'ropoi/i/ti jxt/iif- 

 Ji)sii.v VA\<ro\m. Am. Jour. Sci. 4(5 ( 184:5). ('Iinnilrosiiin fii'/iiint 

 Ton-. Man^y Uep. lAT (1S4S). lUnikhua fiena liigelow, \Viii]>pli' 

 Kxped. Add. p. ii. (lsr»t;). 



Culms sUmkUt, ",^(1-50 em. hi,irli. Ulades narrow, ))apillose- 

 liairy or glahrous. Spike-! 1-4 in number, pectinate, dense, al)out 

 'i, em. loiifT. on short liairy jx'dieels, braeta about twice as Ion;:, 

 axis projecting' beyond the spikeiets i mm. Sterile ilorets mucli 

 ]>rojectin^f from the side of tiic fertile. Empty ^dumes villous. 1- 

 nerved. lirst hyaline, narrow, 'i, mm. lon,<r; secoiul warty-liairy. 

 lan(;eolate. 4 mm. lon^; floral ^lume i)ubes(*ent, iMobed for nearly 

 half its length, nearly 5 mm. long including the central seta, lateral 

 setiv shorter; palea shorter, obtuse, eiliate on the nerves, rachilla 

 smooth, 1 mm. long, bearing funnel-shaped or 2 fan-shaped empty 

 glumes 1 mm. long, with 3 equal setai 3 mm. long, enclosing 1-'^ 

 very small empty glumes. 



A common grass on rocky or dry soil of hills and plains of Chi- 

 hualuia; culms rather wiry; (pudity ecpud to the most of thespeeios 

 enumerated; furnishes an important pro))ortion of the forage of 

 the region. 



Illinois, l\(fti'rson ; Florida, (iaiiwr; Texas, Drummond ; 

 Mexico, PriiKjle 40I», Palmer 2!>, Pan-ii d- Pahmr 943. 



From Florida to British America and ^lexico. 



Var. Palmeri Vasey. B. liohtnderi Vasey. Much larger, often 

 a metre high; spikes 3-6 in number, broader, often 4 mm. long. 



Mexico, Palmer. 



5. B. oligostachya (Xutt.) Torr. A. Gray. Man. Ed. '^:5r)3 

 (1856). (iKAMA. Me.S(H'ITE-(jhass. ActiHiirliloa (jrarilis Willd. 

 W. & S. Syst. 2 : 418 (1811). Aflieropof/on oIi(/osfacJi)/iis Nutt. Gen. 

 1:78 (1818). Eutriania oJi(/osfocJii/a Knnth, Hev. Gram. MO 

 (1829). Chondrosum oligostachyiim Torr. Marcy's Uep. 300 

 (1853). 



