No. ;«. 

 CALAMAGROSTIS CR ASSIGLUMIS Tlimb. Hot. CaI ii. 281. 



I'liint i)L'i'eiiiiiii], tiilted, with ratliur tstioii^' root.stocks. 



Culm erect, simple, smooth, rather stout, rigid, 10 to 15 inches lii^h. 



Iii'drex from th(! basc^ and ol' sterile slioots numerous, 'J to <> inches lonj;. Leaves 

 of eulm 2 or .'3; slieaths loose, striate, smootli, exeeediny tiie internodes; l)]a<ies 

 divaricate, involute toward the acute points, thick, striate, lii-spid above, smooth 

 beneath, 2 to 4 inches lonu; lignles obtuse, h line lonf;' or less. 



Itijlorcscciice a ratiicr dense, almost spicate, erect panicle, 2 inches lon;^. (h-eji iinr- 

 pie; rays glomerate, iinef[ual, less than h inch long, crowded nearly or (jiiite to tiie 

 base with short pcdiceled spikelets. 



Spikdcts turgid, acute, l.l to 2 lines long; em|>ty ghimes broadly lanceolate or 

 lance-ovate, abruptly pointed, subcaitilagiuous, with thin margins, hispidulous through- 

 out, hisjiid on the nerves, 2 lines long or less; first glume Inerved (rarely 2-nerved): 

 second glume Snerved; floral glume oblong-ovate, toothed at the obtuse apex, rather 

 thick, minutely iiispid, 5-nerved, l.i lines long; hairs of the callus and of the sliort, 

 linear rudinu-nt 5 as long as the glume; awn attached at the middle or below, «'(iualing 

 or slightly exceeding its glume; palet oblong, bidentate at the apex, 2-nerv(Hl, about 

 1 line long; lodicules 2, persistent, broadly lanceolate, thin, nearly A line long. 



Platk XXXVIII; rt, empty glumes enlarged 5 times; 6, tloral glume, dorsal 

 view. i)artly unrolled; c, lodicules, stamens, jjistil and ventral view of tloial glume 

 spread out. 



Swamps northern (California to Washington and N'ancouver Island. 'I'lie noil hern 

 specimens are taller and larger. 



