575 
the latter for %~-% of their length from the base), with broad, 
flat, sharp-pointed, rather lax, spreading or slightly retrorse hairs, 
which are elongated-triangular in outline, and gradually diminish — 
in size upward. 
Collected by the writer September ‘6, near Wolf Creek Sta- 
tion (no. 785) where it grows on the sandy bottom-lands near the 
French Broad River and is almost certainly indigenous. 
X speciosum finds its nearest relative in X. Canadense Mill., 
from which it is distinguished by its great size, larger and propor- 
tionately broader fruiting involucres, longer stouter and more 
closely set prickles, longer and stouter beaks, which are more 
nearly erect and more strongly incurved towards apex, and longer 
and larger trichomes on the beaks and prickles. X. macrocarpum 
DC.,* a species not certainly known to occur in the United States, 
is described by the author as having an oval-oblong fruiting in- 
volucre twice longer than broad, which would certainly not apply 
to X. speciosum. Moreover, all probably authentic specimens of 
X. macrocarpum examined showed a strong glandular puberulence 
upon the involucres. None of the species described by Wallroth 
and others from North America can be identified with the Ten- 
nessee plant. 
The whole genus is in need of thorough revision, and souleins 
more so than in the United States. The most cursory glance at 
the material in our larger herbaria is enough to show that Y. Cana- 
dense, X, strumarium and X. spinosum are by no means the only 
species in this country. But until the Old World species are bet- 
ter understood, a satisfactory treatment of the genus here is im- 
possible. 
SENECIO SMALLI Britton, Mem. Torr. Club, 4: 132. 1894. 
Rather abundant on dry banks near Wolf Creek Station, Cocke © 
County, Tennessee, where it was collected by the writer in May, 
1893. Here reported for the first time as occurring in Tennessee. 
HigRACIUM PANICULATUM L. Sp. Pl. 802. 175 3. 
The maximum height of this species as given by Gray in the 
Synoptical Flora is three feet. A plant collected at Lemon’s Gap, 
where it grew indry upland woods, has a stem-length of 17 dm. 
* Prodr. 5: 523. 1836. 
