(219) 
eae noveboracensts tomentosa Britton, Ill. Fl. 3: 302. 1898. 
erect, glabrous or nearly so, 10-16 dm. high; leaves nar- 
a Se lanceolate or elliptic- bene to almost ovate, 10-25 
cm. long, 2 m. wide, short-acuminate, sharply and saliently 
dentate, abruptly narrowed at the base into a short margined peti- 
ne 
a 
° 
or triangular-ovate at the appressed base, acuminate, some o 
with a filiform tip 2-5 mm. long; achenes prominently Abbeds 
ees oe 3.5 mm. long; pappus tawny or straw-colored, 6-7 
Tyee localien: ‘‘in Marilandia, Virginia, Carolina.” 
Distribution: from southeastern Pennsylvania to Georgia and 
Alabama. 
The species is distinguished at once by the characteristic and 
constant structure of the involucre and color of the pappus. There 
is, however, great variation in the foliage. Some plants have nar- 
rowly elliptic-oblanceolate leaves 2 by 10 cm., others broadly ovate 
leaves 5 by 13 cm., or even 10 by 25 cm. Both types are found 
throughout the range of the species. 
Vernonia glauca Britton (Mem. Torrey Club 5: 311. 1894) is 
identical with V. glauca Willd., but V. gfauca Britton, as used in 
the Illustrated Flora, refers to an entirely different plant, if indeed 
to any one definite plant at all. The involucral scales in the latter, 
as described, are similar in shape to those of V. a/téss¢ma, but that 
species very rarely has less than 20 flowers in each head. The 
leaves resemble those of V. ovadifolia, but here the scales are 
different. Some plants of V. flaccidifolia have been distributed 
under this name, but the range as given in the Illustrated Flora 
extends too far north for that species, which also has about 21 
flowers in the head. 
(x) Species-group Moveboracenses 
Tall species with thick stems, ample foliage, lanceolate leaves 
and wide inflorescence; heads many-flowered; scales all acumi- 
nately narrowed into spreading or recurved tips; pappus purple or 
tawny-purple. The two species are distributed along the Atlantic 
coastal plain from Massachusetts to Mississippi and inland to the 
Allegheny mountains. 
