GLEASON: TAXONOMIC STUDIES IN VERNONIA 247 
usual number of flowers in each head, the olive-colored, glandular 
achenes, and the reddish, conspicuously barbellate pappus dis- 
tinguish it from all others. The squarrose scales separate it from 
all others except V. Baldwini Torr., the very narrow paleae from all 
except V. interior Small and the species-group Fasciculatae. It is 
to be hoped that further collecting in a somewhat neglected region 
may bring to light additional material. 
- Vernonia fasciculata nebraskensis var. nov. 
Leaves shorter than in the typical form of the species, narrowly 
lanceolate, denticulate, acute, pale-green or yellowish green; heads 
closely crowded. 
Type: Rydberg 5400, collected in Kearney County, Nebraska, 
July 14, 1900, and deposited in the herbarium of the New York 
Botanical Garden. Numerous other sheets occur in all larger 
herbaria; in fact, almost all of the Nebraska specimens labeled 
V. fasciculata are to be referred to this variety. The species 
proper occurs only along the Missouri River, so far as known to 
- the writer, while the variety extends westward more than half the 
length of the state. Although the brief varietal description 
apparently offers but little evidence for the separation of a variety, 
nevertheless the Nebraska specimens in any large herbaria all 
look alike, all look different from the rest of the species, and can 
be separated at a glance even by a person not familiar with the 
genus, as the writer has been able to demonstrate. 
VERNONIA ALTISSIMA PUBESCENS (Morris) Daniels 
Inner involucral scales tipped with a short, straight,’ flat, 
erect, linear tip, not over 2 mm. long. 
While Morris’s variety was originally separated primarily by 
the character of the foliage, this is, as has been pointed out by 
Blake, due to some unusual pathological or teratological condition. 
The shape of the scales, on the other hand, is found as described - 
above not only in Morris’s type but in several other herbarium 
sheets from the Alleghenian region, from Pennsylvania and Ohio 
south to Alabama and South Carolina, and in isolated collections 
of Wilkinson from Mansfield, Ohio. 
