[Vor. 5 
44 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
Stems erect, 2.5 to 4.5 dm. high, simple or branched; leaves 
and inflorescence similar to the species; achenes glabrous. 
Specimens examined: 
Arizona: Santa Rita Forest Reserve, 31 March-23 April, 
1903, David Griffiths 4212 (Mo. Bot. Gard. Herb.), түре; Santa 
Rita Mountains, alt. 1675 m., 2 May, 1881, Pringle (Gray 
Herb.) ; near Fort Huachuca, coll. of 1894, Т. E. Wilcox 19 (U. 
S. Nat. Herb.). 
100. 8. oresbius Greenm. nom. nov. 
S. oreophilus Greenm. Monogr. Senecio, I. Teil, 24. 1901, and 
in Engl. Bot. Jahrb. 32: 20. 1902, name only; Ann. Mo. Bot. 
Gard. 1 : 267. 1914, not Dusén. 
An herbaceous perennial; stem solitary, erect, about 2.5 dm. 
high, tomentulose; leaves chiefly basal, rather numerous, 
petiolate, oblong-cuneate, including the petiole 3 to 9 em. long, 
.9 to 2.5 em. broad, subentire to sinuate-dentate towards the 
rounded apex, at first white-tomentulose, soon glabrate; stem- 
leaves few, much reduced, sessile, somewhat auriculate at the 
base, slightly expanded and dentate towards the apex; inflor- 
escence a terminal corymbose cyme; heads numerous, about 
1 em. high, radiate; involucre campanulate, sparingly calycu- 
late, slightly tomentulose at the base, otherwise glabrous; 
bracts of the involucre about 21, linear-lanceolate, 7 to 8 mm. 
long; ray-flowers 10 to 12, rays yellow; disk-flowers numerous; 
achenes hirtellous. 
Distribution: known only from the type locality. 
Specimen examined: 
New Mexico: Pinos Altos Mountains, 6 May, 1880, E. L. 
Greene (Gray Herb. and Greene Herb., Univ. of Notre Dame), 
TYPE. 
101. S. Hartmanii Greenm. Monogr. Senecio, I. Teil, 24. 
1901, and in Engl. Bot. Jahrb. 32 : 20. 1902. 
An herbaceous perennial, more or less floecose-tomentose 
throughout; stems one to several from a perpendicular or 
ascending rootstock, 1.5 to 3.5 dm. high, simple, somewhat 
glabrate above, striate; leaves mostly basal, obovate to ob- 
lanceolate, 2 to 10 em. long, .5 to 3 em. broad, entire to crenate- 
