DEC. 1907. SPERMATOPHYTES FROM MEXICO GREENMAN. 281 



Tampico, December, 1878 to February, 1879, Dr. E. Palmer, 

 no. 1,114 (hb. Gray). 



Senecio ( Fruticosi) santarosse Greenman, sp. nov. 



Shrub: stem below covered with a grayish cortex, above 

 more or less arachnoid-tomentulose : leaves petiolate, oblong- 

 lanceolate, i to 2.5 dm. long, 3 to 7 cm. broad, acute or acumi- 

 nate, shallowly sinuate-dentate, narrowed below to an obtuse 

 base, rather prominently reticulate-veined, glabrous on both 

 surfaces or slightly pubescent beneath especially on the midrib 

 and lateral nerves, glabrate; petioles 3 to 7.5 cm. long, at first 

 tomentulose, later becoming glabrous: inflorescence a terminal 

 many-headed corymbose panicle: heads about i cm. high, 

 radiate: involucre arachnoid-tomentulose to essentially gla- 

 brous; bracts of the involucre oblong, 5 to 7 mm. long, obtuse 

 scarious-margined : ray-flowers usually 2; rays 4 to 5 mm. long, 

 yellow: disk-flowers 3 to 5; corollas rather deeply 5-toothed r 

 somewhat zygomorphic: pappus about as long as the corollas, 

 of the disk-flowers, copious, white: achenes glabrous. Monogr. 

 Senecio, I Th. 26 (1901) & in Engl. Bot. Jahrb. xxxii. 22 (1902). 

 Senecio Ghiesbreghtii, var. pauciftorus Coulter, Bot. Gaz. xvi. 

 101 (1891), not 5. pauciftorus Pursh. GUATEMALA. Depart- 

 ment of Santa Rosa: La Vega, altitude 1525 m., February, 1893, 

 Heyde & Lux no. 4,520 (hb. Gray), exsiccatae John Donnell 

 Smith, type. Department of Guatemala: Sapote, altitude, 1,310 

 m., March, 1890, John Donnell Smith, no. 2,359 (hb. Donnell 

 Smith, and hb. Gray). Department of Quezaltenango : Santa 

 Maria, 5 February, 1906, W. A. Kellerman, no. 5,277 (hb. Field 

 Mus.). Department of Solala: Volcano of Atitlan, 16 February, 

 1906, W. A. Kellerman, no. 5,353 (hb. Field Mus.). 



Senecio ( Palmatinervii) adenolepis Greenman, sp. nov. 



Perennial : stem covered with a gray cortex ; ultimate branch- 

 lets glandular-puberulent : leaves petiolate, palmately nerved, 

 ovate-orbicular, 5-lobed, slightly peltate, in specimens at hand 

 7 cm. long, 7 to 8 cm. broad, dark green and hirtellous-puberu- 

 lent above, paler and crisp-hirtellous beneath, mucronate-denticu- 

 late; lobes triangular-ovate and terminated by a mucro; peti- 

 oles 6.5 cm. in length, slightly puberulent, purplish: inflorescence 

 a terminal few-headed granulose-glandular cymose panicle;, 

 bracts lanceolate to linear-setaceous: heads 10 to 14 mm. high, 

 radiate: involucre narrowly campanulate; bracts of the 

 involucre usually 8, oblong-lanceolate, about i cm. long, acumi- 

 nate, acute or acutish, externally short-glandular-pubescent 

 with a few hirsute hairs intermixed: pappus copious, 6 to 7 mm. 

 long, white: ray-flowers 5, about i cm. long; tube of the corolla 

 4 to 5 mm. long, externally sparingly pubescent; rays equalling 

 or somewhat exceeding the tube, yellow: disk-flowers about 15; 

 corollas 9 mm. long with a short tube gradually amplicated 

 above into the 5-toothed limb; achenes glabrous. MEXICO. 

 State of Morelos: Sierra de Tepoxtlan, altitude 2,285 m -> J 3 



