668 OACEJE. 



Olyceria pendulina Laestad. Wahlenb. Fl. Suec. 1088 (1824-6). 

 J'oa petiduUna J. Vulil, Fl. Dun. /. 2343 (1761). 



An erect Hniootli percimiul, GO-TO cm. Iiigh. Sheaths lialf as 

 long as the culm; ligulc chartaccous, 4 mm. long; blwles flat, 

 acuminate, 10-17 cm. long, 3-4 mm. wide. Panicle much exsert- 

 e(l, nodding, ovoid, 12 cm. long, rays in clusters of 3-5, and 2.5-3 

 cm. distant, reflexed, sparingly branching, bearing 3-4 spikelets near 

 the apex. Spikelets oval, 4-6-flowcrt'd, 4-G mm. long; emj)ty 

 glumes Bubequal, 3-nerved, 4 mm. long, joint of rachilhi smooth, 

 0.6 mm. long, floret with a few short hairs at the base; floral 

 glume broadly oval or ovate, 3-3.6 mm. long, 3-nervud, hiteral 

 nerves short, the central extending to the irregularly toothed or 

 lobed apex; pulea elliptical, 2-lobt'd, nearly 3 mm. long. 



British America (Muckelung Kiver), in 1882, for U. S. Dept. 

 Agricul. 



3. C. mnoronata (Iltick.). Ardophila mucronata llack. ; 

 Vasey, Cat. Grasses U. S. 88 (1885). 



A smooth stout grass, 15-25 cm. high. Leaves 6-8 in num- 

 ber, crowded; ligule broad, lacerate, 2 mm. long; blades flat, 

 abruptly pointed, 6-12 cm. long, 6-9 mm. wide. Panicle shin- 

 ing, yellowish, open, partially included, narrow or pyramidal, 5-7 

 cm. long, rays in twos to fours, reflexed, the longest 3-7 cm. long, 

 bearing 2-3 spikelets near the apex. Spikelets 2-flowered, joint of 

 rachilla 0.6 mm. long, smooth or very sparingly hairy; empty 

 glumes subequal, 3-3.3 mm. long, soft, thin, first ovate, 1-nerved, 

 .second broader, 3-nerved; floral glume broadly oval, 3.5 mm. long, 

 3 mm. wide, 6-nerved, margin scarious, apex irregularly toothed 

 or torn, the central nerve extending to the tip or into c short muci'o; 

 j)alea broad, 1.5 mm. long. 



Point IJarrow on Arctic coast, Dr. Murdock in 1883 for U. S. 

 Dept. Agricul. 



128. (258a). DUPONTIA R. Br. Parr. Voy. App. 290 (1824). 

 Spikelets 2-3-flowered in a contracted i)anicle, rachilla articu- 

 late above the glumes and between the florets. Empty glumes sub- 

 equal, scarious, unawned, longer than th^ floral glume; floral glume 



