GRASS FAMILY 



155 



18. Agrostis lepida Hitchc. 

 Sequoia Bent-grass. Fig. 345. 



Agrostis lepida Hitchc. in Jepson, Fl. Calif. 1: 121. 1912. 



Culms tufted, 30-40 cm. tall, erect, producing 

 numerous short rhizomes ; ligule long, especially on 

 the innovations, these as much as 4 mm. long, narrow, 

 pointed; blades mostly basal, firm, erect, flat or 

 folded, the upper culm leaf below the middle of the 

 culm, the blade short, 3 cm. long or less ; panicle 

 purple, erect, 10-15 cm. long, the branches in verti- 

 cils stiff and straight, becoming divaricately spread- 

 ing, the lowermost 2-5 cm. long, spikelet-bearing 

 from about the middle, some short branches inter- 

 mixed; glumes 3 mm. long, smooth or nearly so; 

 lemma 2 mm. long, awnless ; palea wanting or a 

 minute nerveless scale. 



Meadows and open woods Sequoia National Park, at 

 about 10,000 feet altitude. Aug.-Sept. T^pe locality: Siberian 

 Pass. 



19. Agrostis idahoensis Nash. 

 Idaho Bent-grass. Fig. 346. 



Agrostis tciutis Vasey, Bull. Torrey Club 10: 21. 1883, not 

 Sibth. 1794. 



Agrostis idahoensis Nash, Bull. Torrey Club 24: 42. 1897. 



Agrostis temticulmis Nash in Rydb. Mem. N. Y. Bot. Card. 1: 



32. 1900. 

 Agrostis tenuiculmis erecta Nash in Rydb. ]\Ieni. N. V. Bot. 



Card. 1: 32. 1900. 



Culins slender, 10-30 cm. tall; panicle loosely 

 spreading, 5-10 cm. long, the branches capillary, 

 minutely scabrous; spikelets 1.5 mm. long; lemma 1 

 mm. long, awnless; palea minute. Differs from A. 

 Jiiciimlis in the narrow panicle with shorter branches. 



Mountain meadows, Hudsonian and Canadian Zones; Wash- 

 ington to southern California, east to Colorado. July-Sept. 

 Type locality: Idaho. 



20. Agrostis oregonensis \'asey. 

 Oregon Bent-grass. Fig. 347. 



Agrostis oregonensis Vasey, Bull. Torrey Club 13: 55. 1886. 

 Agrostis attcnuata Vasey, Bot. Gaz. 11: 337. 1886. 

 Agrostis hallii calif ornica Vasey, Contr. U. S. Nat. Herb. 3: 

 74. 1892. 



Culms 60-90 cm. tall ; panicle oblong, 10-30 cm. 

 long, open, the branches verticillate, rather stiff and 

 ascending, the lower whorls numerous, the longer 

 5-10 cm. long, branching above the middle; glumes 

 2.5-3 mm. long; lemma 1.5 mm. long, awnless; palea 

 about .5 mm. long. 



Marshes, bogs, and wet meadows, Transition Zone; British 

 Columbia to California. July-Aug. Type locality: Oregon. 

 This species has been incorrectly referred to A. shicdcana 

 Trin. 



Agrostis spica-venti L. (Apcra spica-i-cnti Beauv.), an 

 annual with many-flowered panicle, the lemma with a long 

 slender subterminal awn, and the rachilla prolonged, has been 

 found on ballast at Portland. 



