298 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



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

 Specimens examined: North Yakima, Watt; B'mgen, Suksdorf 2350, 2',i52\ Coulee City, 

 Lalce <& Hull 470. 



Zonal distribution: Upper Sonoran. 



LESQTJERELLA. 



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



Pods obovate; pubescence stellate 2. L. dovglasii. 



1. Lesquerella occidentalis S. Wats. Proc. Am. Acad. 23: 251. 1S88. 

 Veiiicana occidentalifi S. Wats. Proc. Am. Acad. 20: 353. 1885. 



Type locality: "Near Yreka, California." 



Range: Washington to California. 



Specimens examined: Near Mount Adams, Fhtt 430; Klickitat River, Flett 1137. 



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



Type locality: "On the Columbia River east of the Cascade Mountains, Wilkes, Lyall, 

 Suksdorf." 



Range: Eastern Washington and eastern Oregon. 



Specimens exaiviined: Wenache, Whited 1119, 1065; Rock Island, Sandherg d: Leiberg 

 426; W^hite Bluffs of Columbia, Brandegee 635; near Columbus, Suksdorf in 1886; without 

 locality, Vasey in 1889; Columbia Valley, Lrjall in 1860; without locality, Douglas in 1829; 

 Klickitat County, Suksdorf S42; Pasco, Hindshaw, May, 1896; between Coulee City and 

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



Zonal distribution: Upper Sonoran. 



The Brandegee specimens are erroneously associated with L. occidentalis S. Wafs. in the 

 Synoptical Flora. 



THELYPODIUM. 



Cauline leaves auriculate at base 1 . T. sagittatum. 



Cauline leaves not auriculate. 



Annual; racemes loose; pods deflexed 2. T. lasiophijllum. 



Biennial; racemes dense; pods spreading. 



Leaves entire or repand 3. T. intcgri folium. 



Leaves pinnatifid. 



Flowers whitish ; leaves fleshy 4. T". lacin iatum. 



Flowers purple; leaves membranous 5. T. streptanthoides. 



1. Thelypodium sagittatum (Nutt.) Heller, Bull. Torr. Club 25: 265. 1898. 

 Strcptanthus 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 tiu^ sources of the 

 Columbia." Collected by Wyeth. 



Range: Washington to Utah and Nevada. 



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

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



Zonal distribution: Upper Sonoran. 



2. Thelypodium lasiophyUum ( Hook. & Arn.) Greene, Bull. Torr. Clul) 13: 142. 1886. 

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



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



Type locality: California. 



Range: Washington to California. 



Specimens examined: Whatcom County, Suksdoif 953. 



