236 
Senecio hydrophilus Nutt. Trans. Amer. Phil. Soe, vii, 411 (1841). 
Moist river banks, Spokane, Washington; August 18 (No, 924), Wet shores, 
valley of Lake Pend d’Oreille, Kootenai County; August 20 (No, 938). 
Senecio lugens Richards. Bot. App. ed. 2, 31 (1823), 
Frequent in wet places, valley of Big Potlatch River, Nez Perces County; 
June 9 (No. 363). Slopes on Wiessner’s Peak, Kootenai County; July & (No. 609), 
Senecio lugens exaltatus (Nutt.) Gray, Bot. Cal. 1, (1876); S. exaliatus Nutt. Trans. 
Amer. Phil. Soc. vii, 410 (1841). 
Rocky slopes, mouth of Big Potlatch River, Nez Perces County; May 3 
(No. 109). Also vicinity of Lake Waha. 
Senecio serra Hook. Fl. Bor. Amer. i, 332 (1834), 
- Valley of Traille River, Kootenai County; August 10 (No. 890). 
Senecio triangularis Hook. FI. Bor. Amer. 1, 352, t. 115 (1854). 
Along streams, valley of Pine Creek, Farmington, Latah County; June 29 
(No. 524). 
Senecio vulgaris L. Sp. Pl. ii, 867 (1753). 
Frequent in moist places, Julietta, Latah County; June & (No. 343), 
Tetradymia canescens DC. Prodr. vi, 440 (1837). 
Dry hillsides, Spokane, Washington; August 19 (No. 930). 
Carduus drummondii (Torr. & Gr.) Coville, Contr. Nat. Herb. iv, 142 (1893); Cirsium 
drummondii Torr. & Gr, FJ. 11, 459 (1843). 
Meadows, head of Little Potlatch River, Latah County; June 16 (No. 395). 
Carduus foliosus Hook. Fl. Bor. Amer. i, 303 (1833); Cniceus foliosus Gray, Proce. 
Amer. Acad. x, 40 (1874). 
Woods near Granite Station, at the south end of Lake Pend d’Oreille, Kootenai 
County; July 29 (No. 773). 
Carduus remotifolius Hook. Fl. Bor. Amer. i, 302 (1834); Cnicus remotifolius Gray, 
Proc. Amer. Acad, xix, 56 (1883). 
Sparingly in meadows at Viola, Latah County; June 25 (No. 489), 
Carduus undulatus Nutt. Gen. ii, 130 (1818); Cnicus undulatus Gray, Proc. Amer. 
Acad. x, 42 (1874). 
Sandy soil at the north end of Lake Pend d’Oreille; August 25 (No. 964). 
Carduus undulatus megacephalus (Gray) Greene, Proc. Acad, Phila, 1892, 360 
(1893); Cnricus undulatus megacephalus Gray, Proc, Amer, Acad. x, 42 (1874). 
Frequent on hillsides, valley of Clearwater River, Nez Perces County; May 30 
(No, 272). 
Saussurea americana Eaton, Bot. Gaz. vi, 283 (1881). 
Mountain meadows, valley of Traille River, Kootenai County; August 9 
(No. 879). 
Centaurea cyanus L. Sp. PI. ii, 911 (1758). 
Hillsides, Viola, Latah County; June 26 (No. 495). 
Microseris linearifolia (DC.) Gray, Proc. Amer, Acad. 1x, 211 (1874); Calais lineari- 
folia DC, Prodr, vii, 85 (1839), 
Common in sandy soil, valley of Clearwater River, Nez Perces County ; April 24 
(No. 18). 
Microseris nutans (Hook.) Gray, Proc, Amer. Acad. ix, 208 (1874); Scorzonella 
nutans Hook. Lond. Journ. Bot. vi, 253 (1847). 
Hillsides, vicinity of Lake Waha, Nez Perees County; May 22 (No. 225). 
Copses, valley of Big Potlatch River, Nez Perees County; June 9 (No, 371). 
Cedar Mountain, Latah County; June 17 (No, 429). Also valley of Little Pot- 
latch River and near Viola, Latah County. 
