282 FIELD COLUMBIAN MUSEUM BOTANY, VOL. II. 



February, 1907, C. G. Pringle, no. 13,909 (hb. Gray). Related 

 to 5. cordobensis Hemsl., but differs in having smaller leaves, 

 longer involucral bracts and more numerous flowers in the heads. 



Senecio ( Palmatinervii) eriophyllus Greenman, sp. nov. 



Shrub : stem in the dried state of a dark gray or blackish wood, 

 covered with a light gray cortex; ultimate branches white 

 floccose-tomentose in the early stages, glabrate: leaves petiolate, 

 ovate to ovate-oblong, 6 to 10 cm. long, 5 to 8 cm. broad, sinuate- 

 angulate-lobed, entire or sparingly mucronate-denticulate, cun- 

 eate to subcordate at the base, at first densely and softly tomen- 

 tose on both surfaces, later arachnoid-tomentose especially 

 above; the lobes terminated by a short subcartilaginous mucro; 

 petioles 2 to 3 cm. long, tomentose: inflorescence terminating 

 the stem in a many-headed floccose-tomentose panicle: heads 

 about 12 mm. high: involucre calyculate with minute subulate 

 bracteoles, glabrous except at the base; bracts of the involucre 

 8, lance-linear to lance-oblong, 7 to 8 mm. long, obtuse or obtusish, 

 bluntly keeled on the back, stramineous : flowers 12 to 15: 

 achenes glabrous. MEXICO. State of Oaxaca: hills near Tula, 

 altitude 1680 m., 20 May, 1906, C. G. Pringle, no. 13,864 (hb. 

 Gray). This species has its nearest affinity with 5. albonervius 

 Greenm. 



Senecio ( Palmatinervii) Gilgii Greenm. 



Suffrutescent : stems at least above densely pubescent with 

 spreading tawny jointed hairs: leaves long-petiolate, rotund, 

 i to 3 dm. broad, cordate, 7~9-nerved from the base, sinuately 

 lobed and the lobes again subtrilobate, mucronate-denticulate. 

 hirtellous-pubescent on both surfaces; petioles 8 to 14 cm. long, 

 densely pubescent: inflorescence a terminal panicle; heads 

 large, 1.5 to 1.7 cm. high, radiate: involucre campanulate, 

 calyculate, densely hirsute-pubescent; bracts of the involucre 

 usually 13, oblong to oblong-lanceolate, nearly or quite i cm. 

 long, 2.5 to 4 mm. broad, obtuse, more or less overlapping so 

 as to appear subbiseriate, the innermost bracts with scarious 

 margins: ray-flowers 8 to 10; ligules 6 to 7 mm. long, yellow, 

 4-5-nerved: disk-flowers about 30: achenes conspicuously 

 striate, glabrous. Monogr. Senecio, I Th. 26 (1901) & in Engl. 

 Bot. Jahrb. xxxii. 22 (1902), without complete characterization. 

 - MEXICO. State of Chiapas: near Pinabete, altitude 2,000 to 

 2,460 m., 8 February, 1896, E. W. Nelson, no. 3,773 (hb. Gray, 

 hb. U. S. Nat. Mus., and hb. Royal Bot. Mus. Berlin). 



SENECIO HETEROGAMUS Hemsl., var, Kellermanii Greenman, var. 

 nov. 



Leaves long-petiolate, suborbicular or somewhat reniform, 

 7 to 15 cm. long, 9 to 20 cm. broad; petioles 4 to 14 cm. long; 

 inflorescence including the involucre villous-hirsute with long 

 jointed red or reddish-brown hairs: other characters as in the 

 species. GUATEMALA. Department of Sacatepequez: Volcano 



