OBSERVATIONS ON THE COMPOSITZ. 55 
its exceedingly close relationship to Kuhnia (Linn. Sp. 2 ed. 
ii. 1662 (1763), the achenes of which are as terete as in 
Coleosanthus, but they are more than 10-striate, the low 
raised lines of their surface numbering perhaps some twenty; 
and the pappus is strongly plumose. Furthermore, the style- 
tips of Kwhnia are, as a rule, much shorter and thicker than 
in any species of either Hupatoriwm or Coleosanthus. But 
in the genus last named exist a number of species that 
present just the habit of Kuhma, and several in which the 
pappus is pronouncedly barbellate. Into Kuhnia, then, and 
not into Eupatorium must Coleosanthus fall, we think, if it 
should eventually prove untenable. Even before species of 
Coleosanthus with pappus almost plumose had come to light, 
Lessing expressed the opinion that, because no one followed 
Cassini in dismembering Liatris on account of difference 
between a merely scabrous and a plumose pappus, therefore 
not even Kuhnia ought properly to be separated from 
Eupatorium; and his reasoning is excellent. But he does 
not seem to have appreciated the strength of the other 
characters of Kuhnia, namely, the short thick style-tips, and 
the multistriate achenes. 
That Kuhnia suffered neglect at hands of the author of 
the Synoptical Flora of North America, I strongly suspect 
from the look of things in my own herbarium alone; for I 
notice there, by comparing shoots hailing from widely sun- 
dered stations, great diversities not only in foliage and 
inflorescence, but in the length, degree of exsertion, and 
other peculiarities of style-tips, and also of the texture and 
color of the pappus; and yet my specimens. are not very 
numerous. It will be seen by a glance at Gray’s synonymy 
of K. eupatorioides that quite a number of species have been 
proposed by good botanists; and in how far these deserve 
recognition as such, should be made the subject of pains- 
taking research, by some competent person on that side of 
the continent which the genus inhabits. 
The mostly westerly specimens before meare, a sheet from 
Montana, and several from Texas and New Mexico; and I 
