No. 57. 



CALAMAGROSTIS SYLVATICA var. Longifolia Vasoy, Couir. 



Nat. Herb. iii. H.) (l.S!»2). 



Plant perennial, densely tnfted, witli inuncious sterile shoots f'i<iiii a eiee)»iiij; 

 rootstock. 



Culmx erect, sijnple, or branched at the base, leafy nearly to the panicle, 10 to 15 

 inches tall. 



fjcarrs of sterile shoots nuinorons, with close sheaths and involnte blades equal 

 iiig the cnlms: leavers of the culm 2 or y; sheaths lU'arly smooth, striate, rather loose 

 above, half ojjen at the throat, equaling or exceeding the internodes; blades flat or 

 loosely involute, setaceously pointed, scabrid above, equaling those of the sterile 

 shoots; lignle olituse, 1 to 2 lines long, 



/H^ore«ccnce a close-flowered, erect, .spike-like panicle li to4 inches long; rays4 to (i 

 at each of the S to 10 nodes, erect or almost appres.sed, unequal, A inch long or less, 

 divided and spikelet-beai inj:: to the base. 



Hpil;eUU 3 to 4 lines long, \\ ilh 1 i)erfect floret and apilose, sterile pedicel; empty 

 glumes divergent, nearly e(pial, exceeding the floret, lance-ovate, acute or awn-])ointed, 

 nearly smooth, 3 to 4 lines long, the first 1 nerved, tlie second 3ner\('d ; fh)ral glume 

 ovate-oblong, 2-lobed, each lobe terminating in two setaceous points formed by the I 

 hisi)id, excnrrent nerves, inembranaceous and smooth below, 2i to 3 lines long: awn 

 arising below the middle, 4 to o lines long, much exceeding tlu; glumes; i)alet tanee 

 oblong, 2-toothed at the apex, thin, the 2 keels contiguous above, h line short<'r than the 

 glume; grain cylindrical, with a furrow on one side, yellow, \\ to 2 lim-s long; hairs 

 of the callus half a^; long as the floret, and those of the rudimcTit two thirds as long. 



Plate LVII ; a, spikelet with glumes si)read somewhat to show the floret and ster 

 ile pedicel; h, first empty glume; c, second empty glume; rf, floral glume, dorsal view; 

 e, palet. 



Colle<-ted by IT. N. P.olander (No.fi 170) along the Mattole IJiver. FTumboldt County, 

 California. Well marked by the long, involute leavi.-sand thec<Mispieuous hairsofthe 

 callus. 



