GRASS FAMILY 



159 



7. Calamagrostis vaseyi Beal. 

 \'asey's Reed-grass. 355. 



Calamagrostis zaseyi Beal, Grasses N. Am. 2: 344. 1896. 



Culms cespitose, smooth, 30-40 cm. tall ; sheaths 

 smooth or slightly scabrous; ligule 2-3 mm. long; blades 

 flat, becoming involute at the slender point, scabrous 

 on the upper surface, 1.5-2 mm. wide, 5-10 cm. long or 

 the uppermost shorter; panicle narrow, long-exserted, 

 spikelike or somewhat interrupted, 5-10 cm. long, 

 purplish ; glumes equal, acuminate, 6 mm. long ; lemma 

 about 5 mm. long, the awn attached near the base, 

 bent, exserted about 5 mm., the callus hairs nearly half 

 as long as the lemma ; rudiment about 2 mm. long, 

 long-villous. 



Dry rocks, Arctic Zone; Washington and Oregon. July- 

 Aug. Cascade Mountains of Washington. 



8. Calamagrostis nutkaensis (Presl) Steud. 

 Pacific Reed-grass. Fig. 356. 



Deyeuxia nutkaensis Presl, Rel. Haenk. 1: 250. 1830. 

 Calamagrostis aleutica Trin. in Bong. Mem. Acad. St. Petersb. 



VI. Math. Phys. Nat. 2: 171. 1832. 

 Calamagrostis nutkaensis Steud. Syn. PI. Glum. 1: 190. 1854. 

 Deyeuxia aleutica Munro; Hook. f. Trans. Linn. Soc. Bot. 23: 



"345. 1862. 

 Calamagrostis albicans Buck!. Proc. Acad. Phila. 1862: 92. 



1863. 

 Calamagrostis pallida Nutt. ; A. Grav, Proc. Acad. Phila. 1862: 



334. 1863. 

 Deyeuxia breziaristata Vasey, Bull. Torrey Club 15: 48. 1888. 



Culms stout, 1-1.5 meters tall; blades flat, becoming 

 involute, elongate, gradually narrowed into a long 

 point; panicle narrow, rather loose, 15-30 cm. long, 

 the branches rather stiffly ascending; glumes 5-6 mm. 

 long, acuminate ; lemma 4 mm. long, indistinctly 

 nerved, the callus hairs half as long ; awn rather 

 stout, attached below the middle, slightly geniculate, 

 extending to summit of lemma. 



Along the coast in moist soil or wet wooded hills, from 

 Alaska to central California. July-Aug. Type locality: Kootka 

 Sound. 



9. Calamagrostis densa \^asey, 



Fig. ZS7. 



Dense Reed-grass. 



Calamagrostis dcnsa Vasey, Bot. Gaz. 16: 147. 1891. 



Calamagrostis koelerioidcs densa Beal, Grasses N. Am. 2: 

 345. 1896. 

 ■ Calamagrostis vilfaeformis Kearn. U. S. Dept. Agr. Div. 

 Agrost. Bull. 11: 20. 1898. 



Culms rather stout, smooth or scabrous just be- 

 low the panicle, mostly over 1 meter tall ; sheaths 

 scabrous: ligule 3-5 mm. long; blades flat, sca- 

 brous. 15-25 cm. long, the uppermost shorter, 3-8 

 mm. wide ; panicle spikelike, dense, pale, 10-15 cm. 

 long ; glumes acuminate, about 6 mm. long ; lemma 

 about 4 mm. long, the awn bent, about as long as 

 the lemma, scarcely exserted at the side, the callus 

 hairs scant, about 1 mm. long. 



Dry hills, among shrubs, mountains east of San Diego, 

 California. July. Type locality: Julian. 



