(176 ) 
lanceolate, the outer subulate tipped, the inner short acuminate; 
ature achenes baat pappus white, the scales of the outer 
series Bead, conspicuous. 
Type: Gaumer 13725,from Yot Tzonot, Yucatan; in the her- 
barium of the New York Botanical Garden. 
Related to V. argyropappa, but differing in the shape and 
pubescence of the leaves and the shorter, densely pubescent scales. 
(ii) Species-group Pzzeticolae 
Heads few, sessile in the axils of the leaves; involucre large, its 
scales all subulate, erect or somewhat spreading; leaves bullate 
above, densely tomentose beneath. One species of eastern Cuba. 
4. Vernonia pineticola sp. nov. 
Growing in clumps, several stems from a common base, 2— 
dm. high; stem softly and densely pubescent; leaves spreading or 
somewhat reflexed, firm, ovate or broadly ovate-oblong, 3-4 cm 
long, 1.5-2 cm. wide, obtuse or subacute, entire, rounded at the 
sessile base, glabrous and very rugose or bullate above, with deeply 
impressed veins, prominently veined and densely white-tomentose 
beneath ; bracteal leaves similar, but little reduced; heads solitary 
in the axils of the upper ees forming a leafy cyme; involucre 
broadly campanulate, 8-io high; scales all loose, erect or 
somewhat spreading, subulate, pies near the base, glabrate toward 
the apex; achenes 2 mm. long, densely hirsute- ee pappus 
nearly white, 6 mm. iene: the outer series 1 ong 
Type: Underwood & Earle 1341, for pine ede: Baracoa, 
Cuba; in the herbarium of the New York Botanical Garden. 
(iii) Species-group Arborescentes 
Heads sessile in loose spreading or curved leafy cymes, 11—21- 
flowered; involucral scales acute or acuminate, very loosely and 
irregularly imbricated in few series; achenes hirsute; pappus white 
or brown; leaves mainly of an ovate type, pubescent or tomentose, 
at least beneath. Ten North American species. 
8. Vernonia phyllostachya (Cass.) nom. nov. 
Lepidaploa phyllostachya Cass. Dict. Sci. Nat. 26: 16. 1823. 
Vernonia arborescens DC. Prodr. §: 48, in part. 1836, 
Vernonia Berteriana DC. Prodr. 5: 52. 1836. 
Vernonia racemosa Delponte, Mem. Accad. Torino II. 14: 396. 
1854. 
