213 
circular; petiole 1 to 2 cm. long, more or less distinct; flowers white, 3 to 4 
mm, long; calyx half the length of the corolla, on pedicels equaling the flower 
at the time of blooming, but soon elongating, slightly diverging from the erect 
rachis. There was no fully matured fruit on any of the numerous plants 
collected. 
Moist places near summit of Packsaddle Peak, Kootenai County; August 6 
(No. 856). 
Platyspermum scapigerum Hook. F]. Bor. Amer. i, 268 (1830). 
On hillsides near Peter Creek, Nez Perces County; May 4 (No. 110). 
Draba caroliniana Walt. Fl. Car. 174 (1788). 
Dry hillsides, Upper Ferry, Clearwater River, above Lewiston; May 9 (No. 
141). 
Draba nemorosa L. Sp. Pl. ii, 648 (1753). 
Valleys, Upper Ferry, Clearwater River, above Lewiston; April 23 (No. 14). 
Also valley of Lake Waha, and near mouth of Big Potlatch River. 
Sisymbrium incisum filipes Gray, P]. Fend]. & (1849). 
Common at Upper Ferry, Clearwater River, above Lewiston; April 28 (No. 59). 
Sisymbrium officinale Scop. Fl. Carn. ed. 2, ii, 26 (1772); Erysimum officinale L. 
Sp. Pl. 11, 660 (1753). 
Near Colgate, Montana; September 6 (No. 1035). 
Erysimum asperum DC. Syst. 11, 505 (1821). 
Common on hillsides, near Hatwai Creek, Nez Perces County; April 24 (No. 
35). Shores, south end of Lake Coeur d’Alene; July 5 (No. 558). 
Erysimum cheiranthoides L. Sp. Pl. ii, 661 (1753). 
In woods, south end of Lake Pend d’Oreille; July 27 (No. 766). 
Camelina sativa (L.) Crantz, Stirp. Austr. i, 18 (1762); Myagrum sativum L. Sp. Pl. 
ii, 641 (1753). 
By roadsides, introduced, at Upper Ferry, Clearwater River, above Lewiston ; 
April 28 (No. 72). 
Hutchinsia procumbens (L.) Desv. Journ. Bot. iii, 168 (1814); Lepidium procumbens 
L. Sp. PL. ii, 643 (1753); Capsella divaricata Nutt.; Walp. Repert. i, 175 (1842). 
Moist ground at Lewiston; May 13 (No. 160). 
Lepidium dictyotum Gray, Proc. Amer. Acad. vii, 329 (1868). 
Common by roadsides, near Hatwai Creek, Nez Perces County; April 24 
(No. 45). 
Lepidium intermedium Gray, Pl. Wright. ii, 15 (1853). 
Table-lands near Upper Ferry, Clearwater River, above Lewiston; April 26 
(No. 60). 
Lepidium montanum alyssoides (Gray) Jones, Zoe, iv, 266 (1893); L. alyssoides 
Gray, Pl. Fendl. 10 (1849). 
Dry hillsides, Upper Ferry, Clearwater River, above Lewiston; May 9 (No. 
145). 
Thlaspi alpestre L. Sp. PI. ed. 2, ii, 903 (1763). 
Slender glabrous form. Rocks at 1,800 meters altitude, near foot of Wiessner’s 
Peak, on the St. Joseph River, Kootenai County; July 8 (No. 595). 
Thysanocarpus curvipes Hook. Fl. Bor. Amer. i, 69 (1830). 
Basaltic rocks, Upper Ferry, Clearwater River, above Lewiston; April 23 
(No. 8). Also, valley of Lake Waha, and valley of the Clearwater River near 
mouth of Big Potlatch. 
Athysanus pusillus (Hook.) Greene, Bull. Cal. Acad. i, 72 (1884); Thysanocarpus 
pusillus Hook. Icon. Pl. i, t. 42 (1837). 
Upper Ferry, Clearwater River, above Lewiston; April 23 (No.5). 
