298 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Range: British Columbia to New Brunswick, south to Arizona and Florida. 

 Specimens examined: North Yakima, Wait; Bingen, 5uA:sofor/'2350, 2352; Coulee City, 

 Lake cfc Hull 470. 

 2jOnal distribution: Upper Sonoran. 



LESQUERELLA. 



Pods oval ; pubescence not stellate \. L. occidentalis. 



Pods olxivate; pul)esccnrp stollat* 2. L. douglatni. 



1. Lesquerella occidentalis S. Wats. Proc. Am. Acad. 23: 251. 1888. 

 Vemcaria occidentalis S. Wats. Proc. Am. Acad. 20: 353. 1885. 



Type ux'auty: "Near Yreka, California." 



Range: Washington to California. 



Specimens examined: Near Mount Adams, Fhtt 43(); Klickitat River, Flett 1137. 



2. Lesquerella douglasii S. Wats. Proc. Am. Acad. 23: 255. 1888. 



Type ukality: "On the Columbia River east of the Cascade Mountains, Wilkes, LyaU, 

 Suksdorf." 



Range: Eastern Washington and eastern Oregon. 



Specimens examined: Wenachc, Whited 1119, 1065; Rock Island, Sandherg cfc Leiberg 

 426; White Bluffs of Columbia, Brandegee 635; near Columbus, Suksdoif in 1886; without 

 l(K-ality, Vasey in 1889; Columbia Valley, LyaU in 1S60; without locality, Douglas in 1829; 

 Klickitat Count}', Suksdorf S42; Pasco, Ilindshaw, May, 1896; between Coulee City and 

 Waterville, Spillman, May, 1896; Conconully, Griffiths & Cotton 312. 



Zonal distribution: Upper Sonoran. 



The Brandegoe spt'cimens are erroneously associated with L. occidentalis S. Wats, in the 

 Synoptical Flora. 



THELYPODIUM. 



Cauline leaves auriculate at ba.sc ! . 1 . T. sagittatum. 



Cauline leaves not auriculate. 



Annual; racemes loose; pods dcflexcd 2. T. lasiophyllum. 



Biennial; racemes dense; pods spreading. 



Leaves entire or repand 3. T. integrifolium. 



Leaves pinnatifid. ^ 



Flowers whitish ; leaves fleshy ^ 4. T. ladniatum. 



Flowers purple; leaves membranous 5. T. streptanthoides. 



1. Thelypodium sagittatum (Nutt.) Heller, Bull. Torr. Club 26: 265. 1898. 

 Streptanthus sagittatus Nutt. Journ. Acad. Phila. 7: 12. 1834. 

 Thelypodium nuttallii S. Wats. Bot. King Explor. 5: 26. 1871. 



Type locality: "On the banks of the Little Goddin river toward the sources of the 

 Columbia." Collected by Wyeth. 



Range: Washington to Utah and Nevada. 



Specimens examined: North Yakima, Leckenby, May 18, 1898; without locality, Bran- 

 degee 638; without locality, Vasey in 1889; Coulee City, Piper 3883. 



Zonal distribution: Upper Sonoran. 



2. Thelypodium lasiophyllum (Hook. & Am.) Greene, Bull. Torr. Club 13: 142. 1886. 

 Turritis (?) lasiophylla Hook & Arn. Bot. Beech. Voy. 321. 1840. 



Sisymbrium rejlexum Nutt. Proc. Acad. Phila. 3: 26. 1848. 



Type locality: California. 



Range: Washington to California. 



Specimens examined: Whatcom County, Suksdorf 953. 



