304 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
HUTCHINSIA. 
1. Hutchinsia procumbens (L.) DC. Desv. Journ. Bot. 3: 168. 1814. 
Lepidium procumbens L. Sp. Pl. 2: 643. 1753. 
Capsella elliptica C. A. Meyer in Ledeb. Fl. Alt. 3: 199. 1831. 
Capsella procumbens Fries, Novit. Fl. Suec. Mant. 1: 14. 1832. 
Hymenolobus divaricatus Nutt.; Torr. & Gr. Fl. 1: 117. 1838. 
Hymenolobus erectus Nutt. loc. cit. 
Type woca.ity: “ Habitat Monspelii.”’ 
Rance: British Columbia to Labrador and southward. Europe. Asia. Australia. 
SPECIMENS EXAMINED: Whidby Island, Gardner 26; Ellensburg, Whited, April, 1897; 
Rock Lake, Sandberg & Leiberg 117; Sunnyside, Cotton 315; Coulee City, Piper 3890; Lin- 
coln County, Henderson 4382; Spokane, Piper 2944. 
ZONAL DISTRIBUTION: Arid Transition and Upper Sonoran. 
CAMELINA. 
Glabrous or nearly so; pods 6 to 8 mm. long..............-....------ 1. @. sativa. 
Pubescent at least below; pods 4 to 6 mm. long...........-.-.-.-.-.- 2. C. microcarpa. 
1. Camelina microcarpa Andrcz. in DC. Syst. 2: 517. 1818. 
Camelina sylvestris Wallr. Sched. Crit. 347. 1822. 
Type Locaurry: European. 
SPECIMENS EXAMINED: Ellensburg, Whited 448; Wawawai, Piper 1475; Frontier, Krea- 
ger 465. 
2. Camelina sativa Crantz, Stirp. Austr. 1: 18. 1769. 
Type LOCALITY: Austria. 
SPECIMENS EXAMINED: Wilbur, Henderson, July, 1892. 
LEPIDIUM. PeEprerGrass. 
Apex of the capsules bidentate, the valves strongly reticulated. .....-- - 6. L. dictyotum. 
Apex of the capsules merely emarginate, the valves not reticulated. 
Capsules 4 to 5 mm. long, shining..........-.-.--------------- 5. L. nitidum. 
Capsules 2 to 3 mm. long, not shining. 
Petals wanting or very minute. 
Pods glabrous .........----------------------- eee ee 1. L. apetalum. 
Pods puberulent.......-.-.-.-.-.-.----------------- 2. L. lasiocarpum. 
Petals present. 
Basal leaves pinnately parted, pubescent..............- 3. L. menziesir. 
Basal leaves dentate, glabrous........------------.--- 4, L. medium. 
1. Lepidiim apetalum Willd. Sp. Pl. 3': 439. 1800. 
Lepidium elongatum Rydberg, Bull. Torr. Club 29: 234. 1902. 
Type Locaity: ‘In Siberia.” 
Rance: British Columbia to New England and southward. Asia. 
SPECIMENS EXAMINED: Wenache, Whited 1113; Yakima, Henderson, May, 1892; Pasco, 
Hindshaw 13; west Klickitat County, Suksdorf 1942; Pasco, Piper, May, 1899; Sprague, 
Sandberg & Leiberg 175; Cascade Mountains to Colville, latitude 49°, Lyall in 1860; Lake 
Chelan, Elmer, September, 1897; Coulee City, Piper 3878; Walla Walla, Brandegee 645; 
Almota, Piper 2788; Wawawai, Piper, June, 1894, 3064; Pullman, Piper, July, 1894, 3507; 
Clarks Springs, Kreager 572; Almota, Elmer 21. 
ZONAL DISTRIBUTION: Arid Transition and Upper Sonoran. 
2. Lepidium lasiocarpum Nutt.; Torr. & Gr. Fl. 1: 115. 1838. 
TypPE Locauity: ‘“ Near St. Barbara, Upper California.’’ Collected by Nuttall. 
Rance: Washington to California and Texas. 
