1918] 
GREENMAN—MONOGRAPH OF SENECIO 65 
S. mogollonicus Greene, Leafl. Bot. Obs. & Crit. 1:212. 
1906; Wooton & Standley, Contr. U. S. Nat. Herb. 19: 745. 
1 
Stem 2 to 4.5 dm. high; leaves spatulate-oblanceolate, 3 to 
17 em. long, .5 to 3.5 em. broad; heads solitary or not infre- 
quently two. 
Distribution: New Mexico to northern Mexico. 
Specimens examined: 
New Mexico: Mogollon Mountains, on or near the West 
Fork of the Gila River, Socorro Co., alt. 2285 m., 7 Aug., 1903, 
Metcalfe 410 (Greene Herb., Univ. of Notre Dame, U. S. Nat. 
Herb., and Mo. Bot. Gard. Herb.), түре. 
derum Flagstaff, 14 May, 1891, MacDougal 75 (U. S. Nat. 
erb.). 
Chihuahua: Sierra Madre, 24 Sept., 1887, Pringle 1537 
(Gray Herb.). 
The variety has somewhat larger leaves with more attenu- 
ated petioles and occasionally bears two heads, but in all 
essential characters it accords with the species into which it 
directly passes through several intermediates. 
111. 8. molinarius Greenm.! 
An herbaceous perennial, white-tomentose throughout; 
stems simple, erect, about 1.5 dm. high from a simple or 
branched ascending stoutish rootstock, densely lanate at the 
base, floccose-tomentose above; leaves mostly clustered at the 
base of the stem, petiolate, subobovate to broadly elliptic, in- 
cluding the petiole 2 to 6 em. long, .5 to 1.5 em. broad, entire, 
* Senecio molinarius Greenm. sp. nov., herbaceus perennis; rhizomate crasso 
ascendente simplici vel ramoso; caule шрны erecto circiter 1.5 dm. alto basi 
dense lanato superne floecoso- Pur derart foliis inferioribus petiolatis subobovatis 
vel ellipticis petiolo incluso 2— gis .5-1.5 cm. latis integris ad apicem 
submucronatis basi in petiolum amata dé subcoriaceis juventate utrinque albo- 
tomentosis denique plus minusve glabratis, petiolo lamina longiore; foliis super- 
ioribus paucis multo reductis bracteiform ibus; inflorescentiis terminalibus crebre 
corymboso-cymosis paucicipitibus; capitulis circiter 12 mm. altis ra Бақы бін; 
voluero campanulato calyculato; involucri squamis plerumque 21 lineari- -lance- 
olatis 7-8 mm. longis apice acutis purpurascentibus albo-marginatis Xm dense 
tomentulosis; floseulis liguliferis 10—12, ligulis flavibus; floribus disci err 60; 
ow» hirtellis аа "т Pagosa Springs, Colorado, alt. 2130 15 May, 
94, Benjamin H. Smith (Phil. Acad. Nat. Sci. Herb., photogra xu in Мо. Bot. 
ба rd. Herb.), TYPE. Mr. Smith's plant was distributed as “Senecio canus Hook.", 
under which name it may be found in herbaria. 
