PIPER FLORA OF THE STATE OP WASHINGTON. 121 



11a. Agrostis hyemalis geminata (Trin.) A. S. Hitchcock, U. S. Dept. Agr. Bur. PI. 

 Ind. Bull. 68: 44. 1905. 



Agrostis geminata Trin. Gram. Unifl. 207. 1824. 



Type locality: Unalaska. 



Range: Alaska to Washington and Colorado. 



Specimens examined: Cascade Mountains, Henderson, July, 1892; Skagit Pass, Lake <fe 

 Hull 119; Mount Rainier, Allen in 1894. 



Zonal DISTRIBUTION : Arctic. 



12. Agrostis idahoensis Nash, Bull. Torr. Club. 24: 42. 1897. 

 Agrostis tenuis Vasey, Bull. Torr. Club. 10: 21. 1883, not Sibth. 1794. 

 Agrostis tenuiculmis'^&sh, Mem. N. Y. Bot. Gard. 1: 32. 1900. 



Type locality: "Forest, Nes Perces County, Idaho." Collected by Heller. 

 Range: Washington and Montana to California and Colorado. 



Specimens examined: Without locality, Brandegee 1165; Wenacho Mountains, Cotton 

 1669; without loca,\ity , Suksdorf in 1883. 

 Zonal distribution: Canadian? 



13. Agrostis oregonensis Vasey, Bull. Torr. Club. 13: 55. 1886 (April). 

 Agrostis attenuata Vasey, Bot. Gaz. 11: 337. 1886 (December). 



Type locality: "Oregon." Collected by Howell. 

 Range; Washington and Oregon. 



Specimens examined: Skamania County, iSr^tstZor/" 907; Copali.s, CoraartZ 47; Lake Suth- 

 erland, Lavjrence 318; Kittitas County, Henderson 2123. 

 Zonal distribution: Humid Transition. 



14. Agrostis schiediana Trin. Mem. Acad. St. Petersb. VI. 6^: 327. 1841. 

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



Type locality: "Mexico." 



Range: British Columbia to Mexico. 



Specimens examined: Falcon \a.\\ey, Suksdorf 50, 189, 196; Lewis River, Henderson 2131. 



On Suksdorf 's List appear the names Agrostis canina L., A. den^ijlora Vasey va,r.{arena- 

 ria), A. verticiUaia Vill. (A. stolonifera L.), and A. perennans Tuck.? These names all 

 seem to rest upon erroneous determinations, the Last being A. hyemalis. A. verticiUaia 

 Vill. has been collected at Walla Walla by Leckenby, but only from cultivated plots. 



HOLCUS. 



1. Holcus lanatus L. Sp. PI. 2: 1048. 1753. Velvet grass. 



Type locality: "Habitat in Europae pascuis arenosis." 



Specimens examined: Seattle, Smith 785; near Montesano, Heller 3952; Clarks Springs, 

 Spokane County, Kreager 86. 



Quite commonly escaped from cultivation. In western Washington known as "mes- 

 quite grass." 



ARRHENATHERTJM. 



1. Arrhenatherum elatius (L.) Beau v.; Mert. & Koch, Deutsch. Fl. 1: 546. 1823. 



Tall meadow oatgrass. 

 Avena elatior L. Sp. PI. 1: 79. 1753. 

 Holcus avenaceus Scop. Fl. Carn. ed. 2. 276. 1772. 

 Arrhenatherum, avenaceum Boiss. Voy. Bot. Espagne 2: 657. 1839-45. 

 Type ix)cality: "Habitat in Europae maritimis & apricis." 

 Specimens examined; Seattle, Piper 830. 



AIRA. Hair grass. 



Panicle loose ; lemma 2 mm. long 1 . A. caryophyllea. 



Panicle dense ; lemma 3 mm. long 2. A. praecox. 



