1917] 
GREENMAN—MONOGRAPH OF SENECIO 21 
85. 8. leucoreus Greenm.! 
An herbaceous perennial; stems .5 to 2.5 dm. high, simple 
or branched from the base, glabrous except in the axils of 
the leaves, more or less purplish; leaves mostly pinnatifid, 
at first white-tomentulose, later glabrate, the lateral divisions 
obovate and dentate or again divided to linear and entire; 
the lower leaves petiolate, the uppermost sessile and dentate 
to entire; inflorescence a terminal corymbose суше; heads 8 
to 10 mm. high, discoid; involucre campanulate, sparingly 
calyculate, glabrous; bracts of the involucre usually 13, linear- 
lanceolate, 5 to 7 mm. long, acute; disk-flowers about 30; ma- 
ture achenes 3 mm. long, glabrous. 
Distribution: mountains of Nevada. 
Specimens examined: 
evada: on a ridge of limestone formation, south side of 
Lee Сайоп, Charleston Mountains, Clark Co., alt. 2575 m., 
26 July, 1913, А. A. Heller 11003 (Mo. Bot. Gard. Herb. No. 
746961, U. S. Nat. Herb. No. 767010, Univ. Calif. Herb. No. 
175161, and Field Mus. Herb. No. 411575), тук ; White Moun- 
tains, May-Oct., 1898, Purpus 5817a (U. S. Nat. Herb. No. 
348096, and Univ. Calif. Herb. No. 131548). 
86. 8. lynceus Greene, Erythea 3: 22. 1895; Greenm. 
Monogr. Senecio, I. Teil, 24. 1901, and in Engl. Bot. Jahrb. 32: 
20. 1902. Plate 4. 
S. multilobatus Gray, Syn. Fl. N. Am. 12: 394. 1884, and 
ed. 2, 1886, in part. 
An herbaceous perennial; stems one to several from a com- 
mon base, erect, 2 to 5 dm. high, striate, stramineous to 
slightly purplish, leafy at the base, nearly naked above, 
et integris; inflorescentiis terminalibus corymboso-cymosis; capitulis circiter 1 
еш. altis, discoideis; involucro campanulato calyculato, glabro; bracteis involucri 
plerumque 13, lineari-lanceolatis 5-7 mm. longis acutis; floribus disci circiter 
30; achaeniis 3 mm. longis, glabris.—Collected on a ridge of limestone formation, 
south side of Lee Cafion, Charleston Mountains, Clark Co., alt. 2575 m., 26 July, 
1913, A. A. Heller 11003 (Mo. Bot. Gard. Herb. No. 746961, U. S. Nat. Herb. 
No. 767010, Univ. Calif. Herb. No. 175161, and Field Mus. Herb. No. 411575), 
TYPE. 
