152 



POACEAE 



9. Agrostis hallii \ asey. 

 Hall's Bent-grass. Fig. 336. 



Agrostis hallii Vasey, Contr. U. S. Nat. Herb. 3: 74. 1892. 

 Aai'ostis daz-vi Scribn. U. S. Dept. Agr. Div. Agrost. Circ. 

 ' 30: 3. 1901. 



Agrostis occidentalis Scribn. & Merr. Bull. Torrey Club 29: 

 466. 1902. 



Culms erect, stout, 60-90 cm. tall, bearing 

 rhizomes ; ligule usually conspicuous ; panicle 10- 

 12 cm. long, narrow, open ; glumes about 4 mm. 

 long ; lemma awnless, 3 mm. long, with a tuft of 

 hairs at base about half as long; palea wanting. 



Mostly in woods near the coast from Oregon to Santa 

 Barbara. June-July. Type locality: Oregon. 



Agrostis hallii pringlei (Scribn.) Hitchc. U. S. Dept. Agr. 

 Bur. PI. Ind. Bull. 68: 33. pi. 12. 1905. (Agrostis pringlei 

 Scribn. U. S. Dept. Agr. Div. Agrost. Bull. 7: 156. /. 1S8. 

 1897). Differs from A. hallii in the narrower and more com- 

 pact panicles, narrower and more involute blades and the 

 more stramineous appearance of the whole foliage. 



Xear the coast, Mendocino County, California, the type 

 locality. June-July. 



10. Agrostis pallens Trin. 

 Seashore Bent-grass. Fig. ?)C)7 . 



Agrostis pallens Trin. Mem. Acad. St. Petersb. VI. Sci. Nat. 



4': 328. 1841. 

 Agrostis e.varata littoralis Vasey, Bull. Torrev Club 13: 54. 



1886. 



Culms 20-40 cm. tall, erect, from creeping- 

 rhizomes ; panicle contracted, almost spikelike, 5-10 

 cm. long; glumes 2.5-3 mm. long: lemma a little 

 shorter than the glumes, awnless, the hairs at base 

 minute ; palea wanting. 



Sandy soil near the coast, Washington to Marin County, 

 California. June-Aug. Type locality: "Amer. borealis 

 (Hooker)." 



11. Agrostis diegoensis \'asey. 

 Leafy Bent-grass. Fig. 338. 



Agrostis foliosa Vasey, Bull. Torrey Club 13: 55. 1886, not 



Roam. & Schult. 1817. 

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

 Agrostis pallens foliosa Hitchc. U. S. Dept. Agr. Bur. PI. 



Ind. Bull. 68: 34. pi. 14. f. 1. 1905. 



Differs from A. pallens in the taller culms, and 

 more open panicles, the branches rather stiffly 

 ascending ; lemma awnless or with a straight or 

 rarely a bent awn. 



Meadows and open woods, in the Transition Zone; British 

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

 San Diego. 



