Xo. 41. 

 CALAMAGROSTIS DESCH AMPSIOIDES Trin. Sp. Gram. lii. t. .'m. 



Pltnil perennial, tnfted. stoloniferous. 



Culms (Icennibent at ba.se, sniootb, (> to HI in(-lifs liijiii. 



Leaves from tlie base and of st-eiile shoots iuim(;roiis, flat <»r .slightly involute, .sea- 

 brid above, .'> to 6 inches Iotij^-. Leaves of culm usually -; slieatlis close, smooth, 

 shorter than tlie internodes; blades folded or involute, erect, 1 to - inches loug-: linnle 

 1 line lonj;'. 



Infiorescnur a loose, ovate or [lyramidal jtanicle, 1 to '■'> inciies lonj;': rays in twos 

 or threes, 1^ inches long- or less, divided and bearing .'i to G spikelets beyond the middle. 



Spilrlets oil pedicels about equaling themselves, tiu-gid, 1-tiowered, 2 to 2^ lines 

 long: emph' glumes lance-ovate, acute, convex, minutely hisi)ld or nearly smooth, pur- 

 ple, becoming brown in age; tiist glume i nerved. 1-^ to '2^ lines long; second glume 

 obscurely 3-nerved and slightly lougi'r: Hoial glumes lanceolate or lance-oblong, 

 bidentate at the ai)e\. minutely his])id, 4 ner\ed above, '2 lines long; hairs of the 

 callus and rudiment half as long as the glume; awn attached to the midille or above, 2 

 lines long or less; palet oblong, obtuse, thin, 2-nerved, 12 lines long: <,nain oblong, 

 flattened, yellow, ojiaciiu'. 1 line long: lodicules very small. 



Plate XLl: «. empty glumes spread somewhat, enlaiged ."> times; /^ rudiment 

 and floret with glume and palet spiead ; c, tlcuai glume, dorsal view: d. stamens and 

 pistil. 



Alaska and ad.jac<Mit islands. 



