PIPER FLORA OF THE STATE OF WASHINGTON. 385 



Range: British Columbia (o California and New Mexico. 



vSpecimens examined: Near Seattle, Pi/Je/-, June, 1892; Tacouia, Flett 97; upper Nis- 

 fjually Valley, Allen 106; along Twisp River, Whited 201; Stevens Pass, Sandberg & Leiherg 

 742: Wenache Mountains, Wldted 1335; Skamania County, Su]csdo}f24&2; Cascade Moun- 

 tains, latitude 49°, Lyall in 1859; Columlna Valley, Lyail in 1860; Lake Chelan, Lahe cfc 

 HuinCA; Blue Mountains, //o/vie;' 428; Olvnipic Mountains, £'?me/- 2752; Mount Carlton, 

 Kir.ager 286. 



Zonal distribution: Canadian and Transition. 



FORSELLESIA. 



1 . Forsellesia spinescens (A. Gray) Greene, Rrythea 1 : 206. 1893. 

 Glossopetalon spinescens A. Gray, PL Wright. 2: 29. pi. 12. 1853. 

 Ti'PE locality: "In a mountain ravine near Frontera, New Mexico." 

 Range: Washington to California and Texas. 



Specimens examined: Whitman County, Washington, near Lewiston, Hunter 46. 

 Zonal distribution: Upper Sonoran. 



ACERACEAE. Maple Family. 



ACER. Maple. 



Flowers in racemes; fniit hispid 1. ^4. macrophyTlum. 



Flowers in coiymbs; fruit glabrous. 



Leaves 3 to 5-lobed; fruit ^vings somewhat spreading 2. A. douglasli. 



Leaves 7 to 9-lohed; fruit wings T^"ideIy spreading 3. A. circinatum. 



1. Acer macrophyllum Pursh, Fl. 1: 267. 1814. Oregon maple. 

 Type locality: ''On the gr(>at rapids [Cascades] of the Columbia River." Collected 



by Lewis. 



Range: British Columbia to California in the coast region. 



Specimens examined: Tacoma, Flett 42; Nisqually Valley, ^IZZen 114: Silverton, i?0Mci 

 39; Feshsistm, Sandberg (& Leiberg 501; Peshastin Canyon, I^'ai.son; Lake Chelan, Lake 

 cfc Hull 450; Bingen, Suhsdorf 35; without locality, Vasey 225, 226; Clallam County, 

 Elmer 2836; Stehekin, Griffiths & Cotton 219. 



Zonal distribution: Humid Transition. 



2. Acer douglasii Hook. Loud. Journ. Bot. 6: 77. pi. 0. 1847. 

 Acer glabrum douglasii Piper, Fl. Palouse Reg. 114. 1901. 



Ty'PE locality: "Near springs of the Rocky Mountains about the sources of the Colum- 

 bia." Collected by Douglas. 



Range: Blue ilountains, Oregon, northeastward into west Montana and northwest- 

 ward to British Columbia. 



Speclmens examined: Skagit Pass, Lake & Hull 449; Nisqually Valley, Allen 212; 

 Mount Rainier, Piper 52; Mount Adams, Henderson, July, 1892; Cleman Mountain, 

 Henderson, June, 1892; Wenache Mountains, Whited 1022; Tampico, Flett 1200; Hoods- 

 port, Piper 1017; Fort Colville, Lyall in 1860: Sprague, Sandberg d' Leiberg 156; Blue 

 Mountains, Piper, August, 1892 ; without locality, Fasey 229, 230: Da\as Y&nch, Kreager 

 311 ; Wenas, Griffiths & Cotton 96. 



Zonal distribution: Transition and Canadian. 



3. Acer circinatum Pursh, Fl. 1:267. 1814. Vine maple. 

 Type locality: "On the great rapids [Cascades] of the Columl)ia River." Collected 



by Lewis. 



Range: British Columbia to California in the coast region. 



Specimens examined: Near Montesano, Heller 3859; Grays Harbor, Lamb 1034a; Ta- 

 coma, Flett 41; upper Nisqually Valley, Allen 115; Silverton, BoucJc 38; Yakima Pass, 

 29418—06 M 25 



