(hustn.lium. GllAMINE.E. 



z75 



llo,v„r-b<,ui„(; al,„v„ th, i 1 ,'■'""" I ".'' V™ "'' ""™ '""««''' 



lon« . glu,ne,?very acute, .'w s ^ ^ i: i: u I ■"""' \'';' "'"^ ,' "'"^^ 



as to foliage of the larger forms of A cMa T „ „» H^ '"'''•• ^ ^'''' *'"^ S^'^"''^' ^P^ct 

 in any form of tl.at. ft also d (fe s in iN , Si. . :,'» f " '"'^"'' '" ^'■°''^^'^'' '"^"^ '"o^^^^ tl'^" 

 its strongly truncate -lis? n t rtoo led pa et and ^^^r^^^ f';*^''''"" '" *''« g^""''). and 



placed at the middle of the palet ^ ^ ^'" '""""'^ '^°'"''^> '" *!'« stouter awn 



two setK ; „|,|,„r palot not .nanifcst or a mere scale /stamens 1 ()) ' ' 



19. GASTRIDIUM, Hcauv. Nit-Grass. 

 Panicle contractor into a son.owhat loose tapering spike. Spikelets 1-flowered 

 Glumes with an enlarged ventricose shining base, very acute above, obscurely keeled 

 the lower longer. Floret less than one-fourth the length of the lower glume, havin- 

 a very short callus, which is clothed with n.inute hairs. Lower palet very thin" 

 truncate and dentate at apex, just below which is a very slender awn equalling or 

 exceeding the glumes (or sometimes absent); upper palet equalling the lower. Scales 

 2, linear, as long as the ovary. Stamens 3. Stigmas 2, subsessile 



r^^z:;;l's:t::s::^;^^^^^ ^ ----^ «'--^'-"-. ^-.n ...i.. it di. 



]<> J;.,.?" i''"^**'^^®', ^'^^^V""; ^"^'" ^ "'"''"•'^ ^" 2 f^'-^t high, smooth, branching at the 

 ab^^u Tt'J^'T^' ^'^'':^ r ''"? ^^'« ^^'"'^''"'^^ ■■ J-^^'-^ '''^t. -^ to r. inches long, 

 ra .r!l f T, ' y"^:!"*'"^^' ' ^^'^^"-""-^ «" ^^-tl' sides, pale groon ; sheaths mostl^ 

 1. tu^ shorter ban the mternodes slightly roughened ; ligule 2 lines long, lacerate 

 iiinged : panicle 3 to G inches in length and about half an inch wide, in lar-e speci- 

 mens somewhat lobod, very pale green, shining with a satiny lust.v : spikele'ts al.out 

 2 imes loii'' very acute, the p iiimps sH<rI,tlv c,...!.,.,^,,. nK , „i. ;..:.... i .i ... i 



, .-_, J f,.v.v,.,, o. lining » 11.11 ci .-^.inii^) iii.sLitr : spiKt 



very acute, the glumes slightly scabrous abt)ve, sliining bel. 



lowe! 



