(218) 
87. VERNONIA GIGANTEA (Walt.) Britton, Bull. Torrey Club 20: 
485. 1893 
Chrysocoma gigantea Walt. Fl. Car. 196. 1788. 
Vernonia altissima Lessing, Linnaea 6: 639, partly. 1831. Not 
V. altissima Nutt. 
Vernonia altissima parviflora A. Gray, Syn. Fl. 1: go. 1884. 
Vernonia oligantha Greene, Pittonia §: 56. 1902. 
Erect, branching above, with angled glabrous stems reaching a 
height of 2 m.; leaves scattered, lanceolate > elliptic, ro~20 cm. 
long, 1-6 cm. wide, acuminate, narrowed at the base into a short 
petiole, sharply serrate to nearly entire, glabro us or scabrellate 
along the margin above, glabrous or puberulent beneath; inflores- 
cence usually very large, 2-4 dm. across, loose, tebe ei 
. or peduncle » 8-13-flowered ; involucre obpysam > 3-4 
ae irr egularly imbricated in few series, all erect, oblong or oblong- 
lanceolate, acute or ae hanetee or ciliate; Dea puberulent 
in the furrows, 3 m g; pippye dull-purple, 6 mm. long, the 
outer series usually Tene in color 
Type locality: ‘+ Carolina.” 
Distribution: South Carolina, Georgia and Florida, in swamps 
and wet places along the coastal plain. 
Vernonia oligantha Greene, based on Tracy’s 7339, from Palmetto, 
Florida, and represented also by collections of Keeler at Neptune 
and Alden at Fort King, is apparently only a depauperate or shade 
form, with smaller proportionately wider leaves, and smaller inflor- 
escence with fewer heads. The involucre is in all respects like 
the type. 
Some specimens with narrow nearly entire leaves, such as Harper 
1936 from Baker County, Georgia, appear very different from the 
normal form in habit. 
(ix) Species-group Glaucae 
Leaves broad, usually rather abruptly narrowed at the base; 
heads many-flowered; scales acuminate into short filiform tips; 
pappus straw-colored. One species in the lower Appalachian 
mountain region. 
88. Vernonia Giauca (L.) Willd. Sp. Pl. 3: 1633. 1804 
Serratula glauca L. Sp. Pl. 818. 1753. 
Vernonia noveboracensis latifolia A. Gray, Syn. Fl. 37: 89, in 
part. 1884. 
