PIPER FLORA OF THE STATE OF WASHINGTON. 121 



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

 Ind. Bull. 68: 44. 1905. 



Agrosfis geininata Trin. Gram. Unifl. 207. 1824. 



Type LOCALITY : Unalaska. 



Range: Alaska to Washington and Colorado. 



Speclmens examined: Cascade Mountains, Henderson., July, 1892; Skagit Pass, Lnl^e & 

 Hull 119; Mount Rainier, Allen in 1894. 



Zonal distribution: Arctic. 



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

 Agrosils fenuis Vasey, Bull. Torr. Club. 10: 21. 1883, not Sibth. 1794. 

 Agrostis tenuiculmis Nash, Mem. N. Y. Bot. Gard. 1: 32. 1900. 



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

 Range: Washington and Montana to California and Colorado. 



Speclmens examined: Without locality, Brandegee 1165; Wenache Mountains, Cotton 

 1669; without locality, Suksdorfxn 1883. 

 Zonal distribution: Canadian? 



13. Agrostis oregonensis Vasey, Bull. Torr. Club. 13: 55. 18S6 (.Vpril). 

 Agrosfis attenuata Vasey, Bot. Ga"z. 11: 337. 1886 (December). 



Type locality: "Oregon." Collected by Howell. 

 R.\nge; Washington and Oregon. 



Specimens examined: Skamania County, Sutsf/o// 907; Copalis, f'o/M/r/ 47; Lake Suth- 

 erland, Lawrence 318; Kittitas County, Henderson 2123. 

 Zonal distribution: Humid Transition. 



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

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



Type locality: "Mexico." 



Range: British Columbia to Mexico. 



Specimens examined: Falcon Valley, Sulsdorf CO, 189, 196; Lewis River. Henderson 2131. 



On Suksdorf's List appeal' the names Agrostis canina L., xi. dent,iJlora Vasey vnv-iarena- 

 ria), A. verticillata \'ill. (.1 stolonifera L.), and A. perennans Tuck.? These names all 

 seem to rest upon erroneous determinations, the last being A. hyenialis. A. rerticillata 

 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 pa.scuis arenosis." 



Specimens examined: Seattle, Smith 785; near Montesano, Heller 39.52: Claiks Spiings, 

 Spokane County, Kreager 86. 



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

 cjuite grass." 



ARRHENATHERUM. 



1. Arrhenatheruni elatius (L.) Beauv. ; Mert. & Koch, Deutsch. Fl. 1: 546. 1823. 



Tall meadow oatcjrass. 

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

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

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

 Type locality: "Habitat in Europae maritimis & apricis." 

 Specimens examined; Seattle, Piper 830. 



AIRA. Hair grass. 



Panicle loose ; lemma 2 mm. long 1 . ^1. cargo phyllea. 



Panicle dense; lemma 3 miiL long , . 2. ^1. praecox. 



