438 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Specimens examined: Orchard Point, Piper, July, 1895; Tacoma, Fhtt 65; Mount 

 Rainier, Piper 2058; Cascade ^fountains, latitude 49°, Lyall in 1859; Loomis, Elmer 585 

 Conconully, Whited 1324; Cascade Mountains to Colville, latitude 49°, Lyall in 1860 

 Spokane, Piper, May 16, 1896, May 8, 1898; Hangman Creek, Sandberg d- Leiherg 69 

 without locality, Cooper; Olympic Mountains, Elmer 2474; Spokane, Kreager 170; near 

 Delight, Cotton 998. 



Zonal distribution: Transition to Hudsonian. 



3. Arctostaphylos nevadensis A. Gray, Syn. Fl. 2^: 27. 1878. 



Type locality: "Sierra Nevada, Cahfornia. common at 8-10000 feet." 



Eange: Washington to California in the Cascades and Sierras. 



Specimens examined: Skagit Pass, Lake & Hull, August 24, 1892; Stampede Tunnel, 

 Henderson, June 20, 1892; near Longmire Springs, Piper 2047: upper Nisqually Valley, 

 Allen nO; Mount Adams, Sulcsdorf, July 12, 1886; Mount Stuart, Sandberg cfc Leiherg 548; 

 west Klickitat County, Sulcsdorf, May 7. 1886: Roslvn, Whited 357; without locality, Vasey 

 379. 



Zonal distribution: Iludsonian. 



Arctostaphylos MEDIA Greene, Pittonia 2 f 171. 1891 Type locality: " On dry gravelly 

 ground in Mason County," Washington. Collected by Piper. Range: Western Washing- 

 ton. Specimens examined: Port Orchard, Patterson; near Union City, Piper 899 (type). 

 This plant is unquestionably a hybrid between A. uva-ursi and .4. tomentosa. It occurs 

 sparingly and only where both of the parents are abundant. 



CASSIOPE. 



Leaves with a deep dorsal furrow 1. C. tetraqona. 



Leaves not dorsalh' furrowed 2. C. mertensiana. 



1. Cassiope tetragona (L.) D. Don, Edinb. New Phil. Journ. 17: 158. 1834. 

 Andromeda tetragona L. Sp. PI. 1: 393. 1753. 



Type locality: "Habitat in Alpibus Lapponiois." 



Range: Alaska to Greenland, southward to Washington [Oregon?] and Hudson Bay. 

 Asia. 



Specimens examined: Cascade Mountains, latitude 49°, Lyall in 1860; Loomis, Elmer, 

 August, 1897. 

 Zonal distribution: Hudsonian. 



2. Cassiope mertensiana (Bong.) G. Don, Hist. Dichl. PI. 3: 829. 1834. 

 Andromeda mertensiana Bong. Mem. Acad. St. Petersb. VL 2: 152. 1832. 

 Andromeda cupressina Hook. Fl. Bor. Am. 2: 30. 1838 



Type locality: Sitka, Alaska. 



Range: Alaska to California. 



Specimens examined: Olympic Mountains, Piper 2184; J.M.Grant; Cascade Mountains 

 to Colville, Lyall in 1860; Silverton, Bouclc 124; Mount Rainier, Flett ^QQ; Allen 202; 

 Piper 2053; Mount Stuart, Elmer 1109; Mount Ad&mfi, Henderson, August 9, 1892; Stevens 

 Pass, Sandberg cfc Leiherg 714; Horseshoe Basin, Lake d' Hull 563. 



Zonal distribution: Hudsonian. 



Cassiope lycopodioides D. Don is included in Suksdorf's list, but the species is not 

 known south of Alaska. 



