500 POACE^. 



Southern California. 



Var. refracta Tlmrb. S. Wats. Bot. Calif. 2:303 (1880). 



'' Densely velvety pubescent throughout; panicle slender, fiexu- 

 ous, the few distant few-flowered rays all strongly refracted ; flowers 

 very acute." The floral glume hardly acute when spread, but 

 appearing so owing to the involute margins. 



Southern California, Lemmon 1471. 



2. M. Parishii Vasey ined. 



Culms very slender, 20-30 cm. high. Ligule white, 1.5 mm. 

 long; blades 3-4 in number, scabrous, mostly involute, 8-12 cm. 

 long, 1-2 mm. wide. Panicle simple, narrow, 4-6 cm. long; rays 

 in twos or threes or single, the longest about 2 cm. long and bear- 

 ing 2-3 spikelets. Spikelets brown and purj^le on straight pedicels 

 with 1 perfect floret and a rudiment of a second, rachilla 0.5 mm. 

 long; empty glumes ovate acute, first 2.5-3 mm. long, 3-nerved, 

 second 3 mm. long, 3-5-nerved; floral glume 4 mm. long, broadly 

 oval, obtuse, and sometimes 2-lobed, 9-nerved; palea linear before 

 spreading, 2-toothed, as long as its glume. 



Southern California, Parish 1997. 



Mossy mountain-slopes. 



3. M. Torreyana Scribn. 1. c. M. imperfecta var. sesquiflora 

 Torr. in Herb. 



Culms 90 cm. or more high. Ligule 6-8 mm. long, lacerate; 

 blades numerous, flat, 15-20 cm. long, 4-6 mm. wide. Panicle 

 diffuse, 15-25 cm. long, the slender flexuose branches few-flowered 

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

 imperfecta, but distinguished from that species by its more mem- 

 branous, longer, and more acute glumes, the second equalling or 

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

 above the middle, and by the long-pedicelled rudimentary floret. 



Forms with 2-flowered spikelets occur, but the second floret and 

 rudiment are long-pedicelled, while in similar 2-flowered forms of 

 M. imperfecta these are both nearly sessile. Tlie above description 

 is adapted from the original by Scribner. 



California, Dr. Bicjeloio in 1853-4, Bolander, Dr. Torrey 586. 



4. M. inflata Vasey, Contrib. U. S. Nat. Herb. 1 : 269 (1893). 



