(173 ) 
Leaves 4-7 cm. long, merely acute. 79. V. corynebosa. 
Leaves 8-15 cm. long, acuminate. 80. Vi fasciculata. 
Pappus tawny or yellowish. 
Involucre 3-4 mm. high ; scales saci or subacute. 
5. 4 Blain Me 
aie 5- —~6 mam. hi ] shar ply acute, 
ves 2- ie cm, wides southeastern United States. 
V, ovaltfolia. 
pala I-2.5 cm. wide; Mexican. 68. Vi Ervendbergii. 
Heads 34-55-flowered. 
Leaves tioaaly obovate-oblong or oval; scales acute 
69. 
V. Schaffneri. 
Leaves oblong-lanceolate ; scales acuminate. 
70. V. Greggit. 
Reeves fomentose Pa 
orrevolute. 82. V. interior. 
Scales acute to rounded, cope 
Involucre campanulate - Fie 6 mm. ea scales rela- 
tively few; pappus purple. 81. V. illinoensts. 
Involucre Pomme s to cylindric, 8 mm. ae scales was 
numerous ; pappus tawny. 83. Vi missurica 
ttScales long-acuminate to filiform at the tip. 
Heads with 26 flowers or more (see also no. 91, V. pra 
Pappus straw-colored. GLAUCAE. 88. V. glauca. 
Pappus purple or tawny-purple. NOVEBORACENSES. 
eads 26-42-flowered ; gcales ovate, abruptly tapering into the tip. 
89. V. noveboracensts. 
Heads with 55. flowers or more; scales lanceolate, patie taper- 
ing to the ti 0. V. Harpert. 
Heads with about 21 flowers. PULCHELLAE. 
Leaves all or mostly basal. gi. V. acaults. 
esi scattered over the stem. 
ves 3-4 times as long as broad, ae serrate. 
V. pulchella, 
Leaves 5-16 times as long as broad, pers or entire. 
Scales closely appressed at base, recurved at tip. 
3. Vi recurva. 
Scales loosely appressed at base, not recurved. 
94. V. scaberrima. 
Section BaccHAROIDEs Moench, Meth. 578, as genus. 1794 
1, VERNONIA ANTHELMINTICA (L.) Willd. Sp. Pl. 3: 1634. 1804 
Conyza anthelmintica L. Sp. Pl. ed. 2, 1207. 1763. 
Baccharotdes anthelmintica Moench, Meth. 578. 14794. 
Ascaricida indica Cass. Dict. Sci. Nat. 3: Suppl. 38. 1816. 
