600 POAC'EiE. 



Soutlicrn California. 



Var. refracta Tliurl). S. Wats. Hot. Calif. 'i:303 (1880). 



'• Di'iianly volvoty })ulK'st'eiil- throu^^'iiout ; paiiick' slcmlcr, llexu- 

 oiis, tlu^ t'cswtlistant fow-llowcn'd i-ays all sironi^'ly rdVaelcMl ; llowcra 

 vt^i-y ai!iit('." TIk' lloral ^'iiinio hardly acute whcu spread, but 

 ap|H'ariu<^ so owing to tlio iiivolulo luargius. 



Soutiicru California, lA'ninion 1171. 



;.*. M. Parishii \'as('y ined. 



Culms very slender, '^0-30 em. liigh. Liju^ule white, 1 .,'5 mm. 

 long; blades .'5-1 in number, scabrous, mostly involute, 8-1^ cm. 

 long. I-;, mm. wide. I'anielo simple, narrow, -1-0 em. long; rays 

 in twos or throes or single, the longest about 3 cm. long and Itear- 

 ing '!-;{ spil<t'l('ts. Spikeleta brown and purple on straight ptMJicois 

 with 1 perl'e(!t lloret and a rudiment of a second, raehilla 0.5 mm. 

 long; empty glumes ovate acute, first 2. .5-3 mm. long, 3-nerved, 

 second '.\ mm. long. 3-r)-nerved ; floral glume 4 mm. long, broadly 

 oval, obtuse, and sonu-tinu's ;.'-lol)e(l, 9-uerved ; palea linear bol'oro 

 spreading, '^'-tootheil, as long as its glume. 



Southern ('alifornia, l*arish 11)97. 



Mossy mountain-slo])es. 



3. M. Torreyana Scribn. 1. c. M. imyri •■'((( var. scs,fin'j!nra 

 Torr. in Herb. 



Culms (K) cm. or more high. Ligule tl-S mm. long, lacerate; 

 blades numerous. Hat, ir»-'^0 cm. long, l-tj mm. wide. Panicle 

 dilTuse, 15-"^5 cm. long, llie slender llexuose branches few-dowered 

 at the ends, naked below, 5-10 cm. long. Closely allied to JA 

 imperfi'vtu, but distinguished from that si)ecios by its more Jiu'm- 

 braiu)us, longer, and more amite glumes, thi' se(!oml e(pudling or 

 exceeding the floret, by the hairs on the back of the lloral glume 

 above the middle, and by the long-[)edicelled rudimentary lloret. 



Forms with 2-llowered spikeleta otHiur, but the secoiul lloret and 

 rudiment are long-i)edioeiled, while in similar ;7-flowerod forms of 

 M. iin/ierft'cfa these are both nearly sessile. The above description 

 is adai)ted fn)m the origirud by Scribner. 



California, Dr. /Jii/cloio in l.s5;5-4, /iohitH/rr, Dr. Torreji 58(i. 



4. M. ini\ata Vusey, Contrib. U. S. Nat. Herb. 1:'^()9 (1893). 



