PIPER FLORA OF THE STATE OF WASHINGTON. 441 



2. Ledum groenlandicum Oeder, Fl. Dan. 4: pi. 567. 1770. Labrador tea. 

 Ledum latifolinm Jacq. Coll. 2: 308. 178S. 



Type locality: "In Groenlandia." 



Range: Alaska to Greenland, southward to New Jersey, Wisconsin, and Oregon. 

 Specimens ex.vmined: Fidalgo Island, Lyall in 1858; Fairhaven, Suhsdorf m6; Admi- 

 ralty Head, 0. Piper, May, 1898; Whidby Island, Gardner 194; Seattle, Piper 137; Tacoma, 



Fleft 219. 



Zonal distribution: Humid Transition. 



3. Ledum colum.bianum. sp. nov. 



Erect with erect branches, 60 to 90 cm. high; bark becoming smooth and brown; leaves 

 oblong, reticulate, 4 to 6 cm. long, rather obtuse but apiculate, strongly revolute, dark green 

 and gkbrous above, whitish and resinous-dotted beneath, the midrib and short petiole 

 minutely puberulent as well; corymbs terminal, convex, 3 to 5 cm. broad; pedicels slender, 

 puberulent and resinous-dotted, recurved in fruit, 1.5 to 3 cm. long; lobes of the calyx very 

 small, broadly rounded; petals white, oval, 5 to 6 mm. long, obtuse; stamens 5 to 7, the 

 filaments sparsely hirsute at base; ovary minutely canescent and resinoas-dotted ; capsules 



oblong, acutish. 



Collected by the writer in a sphagnum bog at Ilwaco, Pacific County, June 22, 1904 (no. 

 6451) . The type is deposited in the U. S. National Herbarium. Also collected at Clatsop, 

 Oreg., by Coville, September, 1, 1898 (no. 869). 



- This species is nearest related to L. groenlandicum, from which it may at once be distin- 

 guished by the absence of the tomentose pubescence. In this respect it resembles L. glan- 

 dulosum alone, but the capsule characters are those of the former species. Its zonal 

 position is apparently Humid Transition. 



GAULTHERIA. 



Corolla urceolate, filaments hairy; shrub 1 to 2 meters high. 1. ^. sJiallon. 



Corolla campanulate; filaments glabrous: shrubs 5 to 20 cm. high. 



Leaves ovate or subcordate, 2 to 4 cm. long 2. t?. ovatifolia. 



Leaves oval, about 1 cm. long ^. G.Tiumifusa. 



1. Gaultheria shaUo.^ Pursh, Fl. 1: 283. 1814. Salal. 

 Type locality: "On the falls of the Columbia [i. e. Celilo] and near the Western Ocean" 



[mouth of Columbia]. Collected by Lewis. 



Range: British Columbia to Central California west of the Cascades and Sierras. 



Specimens examined: Montesano, Heller 3870; Cascade Mountains, latitude 49°, Lijall; 

 upper Nisqually Valley, Allen 102; Yakima Pass, Watson 251; Skamania County, Suksdorf 

 1540; without 'locality, Fase;/ 381; without locality. Cooper; Olympic Mountains, Elmer 

 2477; Seattle, Piper. 



Zonal dlstribution: Humid Transition. 



2. Gaultheria ovatifolia A. Gray, Proc. Am. Acad. 19: 85. 1883. 



Type locality: "Wooded banks of streams and canons of the Cascade ^Mountains, 

 borders of British Columbia, Washington Territory, and N. Oregon." 



Range: British Columbia to Oregon and North Idaho. 



Specimens examined: Olympic Mountains, Piper 2187; Cascade Mountains, latitude 

 49°, Lyall in 1859; upper Ni'squally Valley, Allen 101a; Alount Rainier, Piper 2055; Flett 

 2.5o'- Mount Adams, 5uJi:.s(Zor/ 154; Stampede Tunnel, i?em/er.son, June 25, October 4, 1892; 

 Yakima Pass, WaUon 252; Goose Lake, Flett 1218; Pend Oreille River, Lyall m I860: 

 without locality, Vasey 380; Box Canyon, Pend Oreille River, Kreayer 398. 



Zonal distribution: Canadian and Hudsonian. 



3. Gaultheria humifusa (Graham) Rydberg, Mem. N. Y. Bot. Gard. 1: 300. 1900. 

 Vaccinium humifusum Graham, Edinb. N, Phil. Journ. 1831 (Apr.-Oct.): 193. 1831. 

 Gaultheria myrsinite.s Hook. Fl. Bor. Am. 2: 35. t. 129. 18.34. 



