:no. 41. 



CALAMAGROSTIS DESCHAMPSIOIDES Trin. Sp. Gram. lii. t. 354. 



Plant perennial, tufted, stoloniferous. 



Culms decumbent at base, smooth, 6 to 10 inches high. 



Leaves from the base and of sterile shoots numerous, flat or slightly involute, sca- 

 brid above, 3 to 6 inches long. Leaves of culm usually 2; sheaths close, smooth, 

 shorter than the internodes; blades folded or involute, erect, 1 to 2 inches long; ligule 

 1 line long. 



Inflorescence a loose, ovate or pyramidal panicle, 1 to 3 inches long; rays in twos 

 or threes, 1£ inches long or less, divided and bearing 3 to 6 spikelets beyond the middle. 



Spikelets on pedicels about equaling themselves, turgid, 1-flowered, 2 to 2^ lines 

 long; empty glumes lance-ovate, acute, convex, minutely hispid or nearly smooth, pur- 

 ple, becoming brown in age; first glume 1-nerved, If to 2| lines long; second glume 

 obscurely 3-nerved and slightly longer; floral glumes lanceolate or lance-oblong, 

 bidentate at the apex, minutely hispid, 4-nerved above, 2 lines long; hairs of the 

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

 lines long or less; palet oblong, obtuse, thin, 2-nerved, 2 lines long; grain oblong, 

 flattened, yellow, opaque, 1 line long; lodicules very small. 



Plate XLI; a, empty glumes spread somewhat, enlarged 5 times; 6, rudiment 

 and floret with glume and palet spread; c, floral glume, dorsal view; d, stamens and 

 pistil. 



Alaska and adjacent islands. 





