9 



1 rous. Palet as long as the lemma, similar. Guayanopa Canon, 

 Sierra Aiadrre Mta. Chihuahua, Mexico, Sept. 1908, Lower Tem- 

 perate Life Zo *e. 



Calamagrostis purpurascens var. Vaseyi (Beal). 



Tins is C. VWyi Beal Or. $ 344. 



Calamagrostis neglecta var. hyperborea (Lange). 



This is C. hyperborea. Lange Fl. Dan. 50. 



Calamagrostis neglecta var. inexpansa (Gray). 



This is C. inexpansa Gray Gram & Cyp. 20 and C. confinis Gr. 



Calamagrostis Langsdorffii var. Scribneri (Beal). 



This is C. Scribneri Beal Gr. * 343. 



Calamagrostis micrantha var. Sierrae n. var. 



Stems rather robust, about 3 ft. high. Leaves about 4 mm. wide, 

 panicle 1-2 dm. long, loose, about 2 cm. wide, strict. Awn rudi- 

 mentary <r very shoit and scarcely visible. Prattville and Susan- 

 ville Cal., under pines, Middle Temperate Life Zone. 



Calamovilfa poaeformis (Four.). 



Thi- 1 assume isXinnastrum poaeformis Fourn. Mex. PI. Enum. 

 Gram. 00 from the description, but my species shall rest on my 

 cha aeters givi n below. Stems tufted and slender, about 3 ft. high. 

 Root leaves several, coarse, thick, scabrous, involute, abont 2 ft. 

 long. Stem leaf one, about i ft. long, with coarse sheath, with 

 short ami nearly entire ligu'e 1-3 mm. long, blade about 1 dm. 

 1 -tig, involute, 1-.' mm. wide, sharp Stems simple, slender, a lit- 

 tle longer than the leaf. Panicle very loose and open, exserted, a- 

 bont a foot long. Rays drooping, flexuous, nearly capillary, about 5 

 together, the longest ofte 5 cm. long to the first branch (the 

 nodes distant), then several-rayed and with raylets loosely flow- 

 ered above the middle. Florets on slender pedicels not longer than 

 themselves. Glumes unequal, tin lower 1-nerved arid strongly 

 scabrous, the upper longer and :>-nerved, flattened, thin, minute- 

 ly pcabrous, li ear-lanceolate, acute, about 6 mm. long. Lemma 

 marly as long as glumes, hyaline, split into 2 long teeth, scabrous, 

 slightly nerved, nwnle-s, with a few seta? at base which are about 

 V as loner. Rudiment hone. Palet a little shorter than lemma. This 

 i as nine i the appearance of a Poa or a Festuea of the occidentalis 

 e!a s. V"faniifi of < 'oli>- a Mexico. July 13 18"2, No. 4?8a, grow- 

 ing among pirns on the slopes, Middle Temperate Life Zone. 



Sporobolus capillipes n. sp. 



Stents much brmehed throughout, with large panicles from nearly 

 every Breath and parti v inc'mlcd. Sheaths in the type longer than 

 the short internodes, spreading. Leaves hradly 8 cm. long, 2-3 

 mm. wide, shortly acuminate, flat. Panicle of ten a foot long, oval- 



