1917] 
GREEN MAN—MONOGRAPH OF SENECIO 27 
Herb.); Pilot Range, Shockley (Univ. Calif. Herb.) ; White 
Mountains near Sunland, alt. 2285 m., 25 June, 1912, Heller 
10505 (U. S. Nat. Herb. and Field Mus. Herb.); dry stony 
ground, Verdi, May, 1889, Sonne 472 (Mo. Bot. Gard. Herb.) ; 
near Verdi, May, 1897, Sonne (Univ. Calif. Herb.) ; log rail- 
road north of Verdi, alt. 1625 m., 24 June, 1913, Heller 10878 
(Mo. Bot. Gard. Herb., U. S. Nat. Herb., Univ. Calif. Herb., 
and Field Mus. Herb.) ; Charleston Mountains, alt. 1525-1825 
m., Мау-Осё., Purpus 6103 (U. S. Nat. Herb.) ; summit be- 
tween Austin and Birch Creek, Toiyabe Range, Lander Co., 
31 July, 1913, Kennedy 4588 (Univ. Calif. Herb.). 
Oregon: on road east of Bly, alt. 1520 m., 1-5 Aug., 1896, 
Coville & Leiberg 245 (U. S. Nat. Herb.). 
California: Goose Lake Valley, July, 1895, Mrs. В. M. 
Austin 560a (U. S. Nat. Herb.); on dry rocks at Madeline 
Plains, Lassen Co., 3 June, 1897, Applegate 867 (U. S. Nat. 
Herb.); Sierra Nevada Mountains, coll. of 1875, Lemmon 
(U. S. Nat. Herb.); northeastern California, coll. of 1879, 
Lemmon 11 (Gray Herb.) ; Mono National Forest, alt. 2435 m., 
King (U. S. Nat. Herb.). 
90. S. stygius Greene, Leafl. Bot. Obs. & Crit. 2: 21. 1909. 
S. diffusus Greenm. Monogr. Senecio, I. Teil, 24. 1901, and 
Engl. Bot. Jahrb. 32: 20. 1902, name only, not L. 
S. prolixus Greenm. Ann. Mo. Bot. Gard. 1: 264. 1914. 
An herbaeeous perennial, glabrous or white tomentulose 
in the axils of the leaves and at the base of the stem; stems 
solitary or several from a common base, 2 to 5 dm. high, 
terete, striate; radical and lower stem-leaves petiolate, 
lyrately pinnatifid into oblong-cuneate coarsely dentate lobes 
which in well-developed specimens are separated by deep 
rounded sinuses, including the petiole 3 to 5 em. long, 1 to 
5 em. broad, glabrous on both surfaces; inflorescence a loose 
corymbose cyme, 1 to 2.5 dm. in diameter; heads about 1 cm. 
high, radiate; involucre campanulate, sparingly calyculate, 
glabrous; bracts of the involucre usually 21, linear-lanceolate, 
5 to 6 mm. long; ray-flowers about 13, ligules yellow; disk- 
flowers numerous, 50 to 60; achenes glabrous. 
