PIPER FLORA OF THE STATE OF WASHINGTON. 517 



Corolla minutely pubescent: herbage scabrous 



and sparsely hirsute-ciliate 5. O. temnfoliii.<i. 



Corolla glabrous or minutely granular-puberu- 

 lent; herbage puberulent, not at ail hirsute- 

 ciliate 6. 0! inthricatiift. 



Galea straight not hooked, its tip glandular pul)es- 



cent ; bracts all acute 7.0. harhatus. 



Bracts less different from the leaves, all 3 to .5-lobed. 



Flowers purple ; leaves all 3-cleft S. 0. hmcteosui^ . 



Flowers yellow; leaves mostly entire S). O. hden><. 



Lip with 3 conspicuous swellings, much larger than the galea. 

 Flowers very small 4 to 6 mm. long, dull purple; leaves 



pinnatifid oi- bipinnatifid into filiform segments 10. 0. pv.siUus. 



Flowers larger 12 to 20 mm. long; leaves simply pinnate 

 with slender lobes or entire. 

 Corolla sulphur-yellow, 2 to 2.5 cm. long; anthers 



1-celled l\. O. eriaiithus. 



Corolla white, about 1 cm. long; anthers 2-celled. . 12. O. M.spidu.s. 



1. Orthocarpus pilosus S. Wats. Bot. King Explor. 231. 1871. 

 Ti'PE locality: "In Washoe Valley, Nevada." 



Range: Washington to California and Nevada. 



Specimens examined: Mount Adams, Sii]c><dorf, September 2, K)04 (an unusually glandu- 

 lar form). 



2. Orthocarpus purpurascens Benth. Scroph. Ind. 13. 1835. 

 Type locality: California. Collected by Douglas. 



RANCiE: Oregon and California. 



Specimens examined: Seattle (introduced), Piper, June 4, 1891. 



3. Orthocarpus castilleoides Benth. Scroph. Ind. 13. 1835. 

 Ty'PE locality: California. Collected by Douglas. 

 Range: On the seacoast, Paget Sound to Monterey. 



Specimens examined: Grays Harbor, WilJces Expedition; Oyhut, Lamh 1269; Whidby 

 Island, Gardner 239; Lillewaup, Piper in 1890; Astoria, Cooper; Everett, Piper 4987; 

 Copalis, Conard 385. 



Zonal distribution: Humid Transition. 



4. Orthocarpus attenuatus A. Gray, Pac. R. Rep. 4: 121. 1857. 

 Type locality: Corte Madera, California. 



Range: British Columbia to Middle California. 



Specimens examined: Whidlw Island, Gardner, 225; Lopez Island, />(/«// in 1S5S: near 

 Tacoma, Flett 191, 2123, May 5, 1895: Nisqually, Wil]ce.s Expedition. 

 Zonal distribution: Humid Transition. 



5. Orthocarpus tenuifolius (Pursh) Benth. in DC. Prod. 10: 536. 1846. 

 Bart.sia tenuifoUa Pursh, Fl. 2: 429. 1814. 



Type locality: "On the banks of Clark's River." Collected by Lewis. The exact 

 locality is near the mouth of the Lolo fork of the Bitterroot River, Montana. 



R.\nge: British Columbia to Oregon and west Montana. 



Specimens examined: Wilson Creek, Sandberg & Leiberg, June, 1893; Wilbur, Hender- 

 son, iu\y 12, 1892; Douglas County, SpiUman, May, 1896; Cow Creek, Lyall; Spokane 

 County, Srik.sdorf 425; Spokane, Deivart; Pullman, Piper 1666; Clarks Springs Kreager 

 18; Okanogan to Grand Coulee, Willces Expedition. 



Zonal distribution: Arid Transition. 



