OBSERVATIONS ON THE COMPOSITE. 41 
Sidirica, subsequently thinking it too closely allied to Montia 
to stand as a generic type, referred it, not to that, but 
to Claytonia instead; with which latter it has little in 
common. It was a strange movement to make, but all men 
subscribed to the proposition. 
In the case of Calandrinia, Kunth confused two generic 
types; and the late Dr. Gray persisted in referring all the 
plants of whichever type, to this genus. But the capsule in 
one of the types, is that of Lewisia; with which fact, how- 
ever, Dr. Gray was not acquainted until notified of it, at a 
late date, by Mr. Henderson and myself. It is upon this 
capsule of Lewisia combined with other characters that 
belong to Calandrinia, that OREOBROMA is based. 
The above arrangement of genera and species was written 
as long ago as 1888, but has remained until now unpublished; 
meanwhile, Professor Greene, in the Flora Franciscana, 
has transferred a part of the Claytonia species to Montia. © 
OBSERVATIONS ON THE COMPOSIT #.—I1. 
By Evwarp L. GREENE. 
Tribe II. FUPATORIACE. 
Tuts embraces a series of genera intimately connected 
with the Asteroides and the Vernoniacez. M. Baillon 
includes them in the latter tribe. Their style-branches, 
however, are not subulate, seldom even linear, but usually 
obtuse and rather distinctly clavate. Moreover, the bases of 
the anthers are not sagittate but sub-entire. The flowers, 
though often yellowish, are never truly yellow. 
In the Benthamian view of the limits of the genera, these 
number not far from forty; of which more than two-thirds, _ 
and even a greater proportion of the species, are of North 
America including Mexico. 
TricHocoronis, a small group of flaccid riparian herbs, 
though perhaps best placed here, imitates Erigeron of the 
