PIPER FLORA OF THE STATE OF WASHINGTON. 437 



Tree; berry many-seeded Arbutus (p. 437). 



Shrub; drupe 5 to lO-seeded Arctostapiiylos (p. 437). 



Fniit a dry capsule. 

 ' Anther cells each tipped with a recurved awn. 



Leaves opposite ; style long, slender Cassiope (p. 438) . 



Leaves alternate; style short, stout Harrimanella (p. 439). 



Anther cells not appendaged. 

 Corolla gamopetalous. 



Bracts firm, persistent; no seal}' leaf-buds. 



Leaves heath-like; corolla without pouches. Piiyi.lodoce (p. 439). 

 Leaves lanceolate; corolla with 10 pouches, 



which hold the anthers Kalmia (p. 439). 



Bracts thin, deciduous; leaf -buds scaly. 



Corolla funnel form, .S-lobed Rhododendron (p. 440). 



Corolla globose, 4-toothed Menziesia (p. 440). 



Corolla c'">oripetalous; bracts deciduous. 



Flowers white, umbelled; leaves evergreen Ledum (p. 440). 



Flowers coppery, solitary: leaves deciduous Cladothamnus (p. 442). 



ARBUTUS. 



1. Arbutus menziesii Pursh, Fl. 1: 282. 1814- Madrona. 



Type Locality: "On the northwest coast of America." Collected by Menzies. 



Range: British Columbia to Cahfornia along the coast. 



Specimens examined: Mat Mats Bay, Binns; Seattle, Piper in 1888. 



Zonal distribution: Humid Transition. 



Not uncommon, especially on the bluffs along Puget Sound, and in similar situations 

 where the trees receive abundant light. 



ARCTOSTAPHYLOS. 



Erect shrubs 1 to 2 meters high 1- -1- tomentosa. 



Prostrate creeping shrubs. 



Leaves retuse at apex ^- -^- ^ii'n-nrsi. 



Leaves cuspidate at apex 3- -^- nevadens-s. 



1. Arctostaphylos tomentosa (Pursh) Dougl. Bot. Reg. 21: /)/. 1791. 183(i. 



Manzanita. 



Arbutus tomentosa Pursh, Fl. 1: 282. 1814. 



Type locality: "On the North-west Coast of America." Collected by Menzies. 



Range: Western Washington to California and Arizona. 



Specimens examined: Tacoma, FJeft, April 20, 1896; McNeils Island, Flett, June, 1895; 

 Mason County, Piper 898; Mount Constitution, Henderson, July 4, 1892; west Klickitat 

 County, SuJcsdorf 985, 660; Olympic Mountains, Elmer 2473; Vancouver, Piper, Septem- 

 ber, 1902; Vancouver, Piper 4936. 



Zonal distribution: Humid transition. 



Hooker a recognizes two forms of this species .4. tomentosa hispida and A. tomentosa 

 nuda, the former with hispid, the latter with smooth branchlets. The first form is appar- 

 ently typical A. tomentosa. 



2. Arctostaphylos uva-ursi (L.) Spreng. Syst. 2: 287. 1825. Kinnikinnick. 

 Arbutus uva-ursi L. Sp. PI. 1: 395. 1753. 



Ti-PE locality: "Habitat in Europa frigida, Canada." 



Range: Arctic regions, southward to Pennsylvania, New Mexico, and California. 

 Europe. Asia. 



aFl. Bor. Am. 2:37. 1834. 



