248 GLEASON: TAXONOMIC STUDIES IN VERNONIA 
Vernonia altissima brevipappa var. nov. 
Lower surface of the leaf-blades with a few multilocular hairs 
along the veins; paleae only 0.1-0.3 mm. long; otherwise as in the 
typical form of the species. 
TyPeE: collected by J. Schneck at Mt. Carmel, Illinois, August 
13, 1891, and deposited in the herbarium of the University of 
Illinois. 
Vernonia altissima laxa var. nov. 
Heads smaller than in the species, 13—21-flowered; inflorescence 
broad, irregular, very loose and open; inner involucral scales often 
apiculate, the middle scales frequently sharply acute; resin-dots 
none; leaf and pubescence as in the typical form of the species. 
Type: Harper 1936, collected at Newton, Georgia, August 19, 
1903, and deposited in the herbarium of the New York Botanical 
Garden; duplicates of the type are in the Gray Herbarium and 
the herbarium of the Field Columbian Museum. Other speci- 
mens of this southern or coastal plain variety are Tracy 8046 
and Eggleston 5142. 
Vernonia flaccidifolia angustifolia var. nov. 
Leaves narrowly lanceolate, denticulate, only 1-2 cm. wide; 
otherwise as in the typical form of the species. ; 
Type: ex herb. Torrey, collected in Alabama and deposited in 
the herbarium of Columbia University; another sheet in the New 
York collections is from Georgia, ex herb. Chapman. 
Vernonia ovalifolia purpurea var. nov. 
Leaves with numerous multilocular hairs on the veins of the 
lower surface, the upper leaves subtending the branches truncate 
on rounded at the sessile base; pappus purple; otherwise as 1m the 
typical form of the species. 
Type: F. S. & E. S. Earle 99, collected at Auburn, Alabama, 
July 22, 1899, and deposited in the herbarium of the New York 
Botanical Garden. 
Vernonia jucunda sp. nov. 
Stem apparently herbaceous, at least 4 dm. high, erect, 
sparingly branched, densely villous when young, becoming floc 
when older and glabrate at about 3 dm. from the summit, fainty 
