STUDIES IN THE COMPOSITAE. 265 
3 to 6 inches long and about equalling the internodes, 
evenly and rather coarsely somewhat appressed-serrate, 
sessile by a narrow base: peduncles about 5, very slender, 
nearly a foot long, with or without a pair of leaves in the 
middle: involueres erect both in flower and fruit, campanu- 
late; outer bracts lanceolate, entire, an inch long and equalled 
by the broad deep-yellow abruptly acute rays: disk corollas 
greatly elongated yet not as long as the 2 or 3 very slender 
yellow awns, these of more than half the length of the 
linear-cuneiform chestnut-brown achenes, the angles of the 
latter minutely and sparsely retrorse-bristly. 
Eastern Branch Marsh, near Washington, D. C., 7 July, 
1878, L. F. Ward. 
" B.Pamnvr. ‘Tall and slender: leaves barely equalling the 
internodes, 4 to 6 inches long, lanceolate or subfaleate, sub- 
serrately callous-denticulate, contracted at base and not con- 
nate: heads in a merely leafy-bracted or even almost naked 
terminal cyme, campanulate, nodding in fruit; outer invo- 
lucre not equalling the 8 or 10 rays, these about an inch 
long, 15-nerved and 3-dentate: tube of disk-corolla twice 
the length of the campanulate limb: achenes short-cunei- 
form, much flattened, only 2-angled and 2-awned, both awns 
&nd angles retrorse-aculeolate, the awns short, but of more 
than half the length of the achene. 
Species belonging to western Texas and adjacent parts, 
here defined, as to fruit, from n. 580 of the Mexican Boun- 
dary collection as represented in the U. S. Herbarium, and 
as to vegetative characters, from Palmer's n. 633 of the 
southwestern Texas plants, which I trust is the same, 
though not showing fruit. It is a remarkable species, and 
an unwelcome one, as uniting the habit of B. cernua and 
the fruit of the Platycarpzea group of species. The material 
