DEC. 1907. SPERMATOPHYTES FROM MEXICO GREENMAN. 285 



Gray, and hb. Inst. Physico.- Geogr. Cost. Rica); "bords du 

 rio Paraita au Copey," altitude 1,800 m.,A. Tonduz, no. 11,844 

 (hb. Gray, and hb. Inst. Physico.-Geogr. Costa Rica). The 

 long slender cylindrical few-flowered heads with longer and 

 narrower involucral bracts, as shown by additional material, 

 render this species of easy separation from 5. multivenius Benth. 

 with which it has been hitherto associated. 



Senecio ( Terminales) chicharrensis Greenm. 



Fruticose: stem leafy and white-tomentose above: leaves 

 long-petiolate, oblong-ovate, 1.2 to 2.7 dm. long, i to 1.8 dm. 

 broad, subcordate to abruptly contracted below to an unequal 

 base, glabrous above, floccose-tomentose beneath especially 

 along the prominent midrib and lateral nerves, sinuately lobed; 

 lobes mucronate, acute, remotely mucronate-denticulate ; petioles 

 8 to 10 cm. long, more or less floccose-tomentose: inflorescence 

 abruptly terminating the stem in small and many-headed floc- 

 culent close compound corymbs on rather long peduncles : heads 

 about 8 mm. high, radiate: involucre 4 mm. high, essentially 

 ecalyculate or with a few small inconspicuous bracteoles; 

 bracts of the involucre 8, oblong or linear-oblong, obtusish, 

 glabrous, the inner scarious-margined : ray-flowers 2 or 3 ; rays 

 short, oblong 2 to 2.5 mm. long: disk-flowers about 9: achenes 

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

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

 MEXICO. State of Chiapas: near Chicarras, altitude 1830 m., 

 12 to 15 February, 1896, E. W. Nelson, no. 3,796 (hb. Gray, and 

 hb. U. S. Nat. Mus.). A species similar to 5. arborescens Steetz, 

 but with different foliage and involucre. It is also related to 

 S. Gurkei Hieron., a species of New Granada, and to S. grandi- 

 folius Less., but these again have a very different pubescence 

 and involucre. 



Senecio ( Terminales) copeyensis Greenm. 



Arborescent: stem above tomentose: leave petiolate, large, 

 ovate-oblong in general outline, 2 to 3 dm. long, 1.5 to 2 dm. 

 broad, pinnately lobed with deep narrow sinuses, abruptly or 

 somewhat gradually contracted at the base into the petiole, 

 reticulately veined above and sparingly puberulent over the 

 upper surface except along the tomentulose midrib, at first 

 tomentulose beneath later somewhat glabrate; lobes narrowly 

 oblong to lance-oblong, 2.5 to 10 cm. long, i to 2.5 cm. broad, 

 terminated by a stoutish cartilaginous mucro, entire or remotely 

 and inconspicuously cartilaginous-denticulate, revolute-mar- 

 gined; petioles nearly or quite i dm. long: inflorescence abruptly 

 terminating the stem in two or more compound many-headed 

 tomentose corymbose panicles: heads about 8 mm. high, discoid: 

 involucre calyculate with few setaceous-linear bracteoles, slightly 

 tomentose to essentially glabrous ; bracts of the involucre usually 

 8, lanceolate to oblong-lanceolate, 4 to 5 mm. long, brownish 

 or even blackish in the dried state, the inner with broad scarious 



