PIPER — FLORA OF THE STATE OF WASHINGTON. 261 



Petals shorter than the pungent, lanceolate 1 -nerved 



sepals 5. ^. franklinii. 



Petals wanting; plants minute, usually purplish 8.-4. pusilla. 



Valves of the capsule entire. 

 Petals present. 



Leaves linear or lance-linear; marsh plants with soft and 



flaccid leaves and stems 6. ^. palitdicola. 



Leaves subulate or filiform, rather rigid. 



Sepals obtuse IL A. sajanensis. 



Sepals acute or cuspidate. 



Plants densely matted or tufted, alpine; cymes 

 few-flowered. 



Herbage glandular; sepals not strongly nerved- 10. A. nuttallii. 

 Herbage not glandular; sepals strongly nerved . 9. A. verna. 

 Plants loosely or not at all matted; cymes dichoto- 

 mously branched, several to many-flowered; low- 

 land plant 7. A. tenella. 



1. Arenaria serpyllifolia L. Sp. PI. 1: 423. 1753. 

 Type locality: Europe. 



Specimens examined: Fairhaven, Piper, July, 1897; Whidby Island, Gardner 369; 

 Seattle, Piper 551; Tacoma, Flett 2022; Clarke County, Suksdorf ISdS, 101. 



2. Arenaria capillaris Poir. Encycl. 6: 380. 1804. 

 Type locality: "Dans la Sib^rie." 



Range: British Columbia to California and Utah. Siberia. 



Specimens examined: Cascade Mountains, latitude 49°, Lyall in 1860; head of Twisp 

 River, Whited 211; Wenache Mountains, Whited 1283; Nason Creek, Sandberg <fc Leiberg 

 681; Horseshoe Basin, Lake & Hull 486; without locality, Brandegee 674; Mount Carlton, 

 Kreager 238; Wenache Mountains, Cotton 1187. 



Zonal distribution: Arctic. 



2a. Arenaria capillaris nardifolia(Ledeb.) Regel, Bull.Soc. Nat.Mosc. 35: 253. 1830. 



Arenaria nardifolia Ledeb. Ic. Fl. Ross. 1: 4. pi. 6. 1829. 



Type locality: "Hab. in rupibus alpium Altaicarum." 



Range: Alaska to California and Utah. Siberia. 



Specimens examined: Olympic Mountains, Flett 806; Mount Rainier, Piper 620, 2121; 

 Allen 238; Mount Stuart, fi^Zmer 1115; Klickitat River, Flett 1059. 



Zonal distribution: Arctic. 



3. Arenaria congesta Nutt.; Torr. & Gr. Fl. 1: 178. 1838. 



Type locality: "Shady hills in the Rocky Mountain range, about Bear River of the 

 Lake of Timpanagos." Collected by Nuttall. 



Range: Washington to California and Colorado. 



Specimens examined: Chelan, Whited 1377; Conconully, Whited 1320; White Blufl", 

 Lake & Hull 485; Wilson Creek, Lake cfe Hull 482; Loon Lake, Winston, July 20, 1897; 

 Spokane, Spaulding; Suksdorf 252; Piper, June, 1897; Blue Mountains, Lake cfc Hull, 

 July, 1892; Piper, July, 1896; Clarks Springs, Kreager 100. 



Zonal distribution: Arid Transition. 



4. Arenaria glabrescens (S. Wats.) 



Arenaria fendleri glabrescens S. Wats. Bot. King Explor. 40. 1871. 



Arenaria fendleri subcongesta S. Wats. loc. cit. ; 



Arenaria burkei Howell, Fl. N. W. Am. 85. 1897. 



Type locality: Toyabe Mountains, Nevada. 



Range: Washington to Alberta, Arizona, and California. 



