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Fig. U7. CALAMAQROSTIS BOLANDERI Thurb. in S.Wats, Bot. Calif. 2: 

 280. 1880.— A stout perennial 6-15 dm. (2°-5°) high, with flat leaves 10-30 cm. 

 (4'-12') long, 4-8 mm. (2"-4") wide, and expanded, dark purple panicles 8-20 cm. 

 (3'-8') long. Spikelets (a) 3 mm. (1^") long, with equal, lanceolate, empty 

 glumes (5), and minutely rough-tuberculate, awned, flowering glumes {c,d,e); 

 awn inserted near the base, exceeding the glumes. Callus hairs few, about 

 one-third as long as the glume, those of the rudiment about one-half as long as 

 the glume. Palea slightly shorter than the glume, 2-nerved, and 2-toothed at 

 the apex. Northern California. 



This species is unique in the peculiar granular roughening of its flowering 

 glumes. It has no near relative among the North American species. 



