IOC l\Fr. Brown’s Observations on the 
Cook’s second voyage, and now in the library of Sir Joseph Banks,, 
there is a figure of this plant, from which it appears that he origi¬ 
nally referred it to Stcehelina; a proof that he had not at that time 
very carefully examined it. It is not improbable therefore that he 
afterwards proposed it as a distinct genus, belonging to Polygamia 
segregata, from finding that this had been already done by Solan- 
der, whose name (Cart odium ), however, he did not think it neces¬ 
sary to adopt, and with whose generic character he probably was 
not acquainted. In his own he very erroneously states that there 
is no partial involucrum, and hence perhaps M. Labillardiere 
entirely overlooked Craspedia when he established his Richea from 
a nearly related species of the same genus. That such is the case 
I have long since briefly noticed*, and have ascertained by a 
comparison of the specimen of Craspedia unijiora in George 
Forster’s Herbarium with Richea glauca of Labillardiere, and 
other species of the same genus which I have observed in New 
Holland. 
M. Labillardiere’s character of Richea is essentially correct. 
It is well to remark, however, that his general involucrum is 
formed of the bracteae subtending and in equal number with the 
outer partial capitula; and that the general receptacle has no 
other paleae than the analogous bracteae of the inner capitula. It 
is the more necessary to take this view of the structure, as I have 
found in New Holland a nearly related genus ( Calocephalus }, 
which differs from Craspedia and Richea in the want of these brac¬ 
teae, as well as in the partial receptacles being without paleae, and 
in the rays of the pappus being plumose only in the upper part. 
1 have also another genus of this tribe ( Leucopliyta ) from the same 
country, differing from Calocephalus in having a general involu¬ 
crum consisting of a few short bracteae, in the squamae of its par¬ 
tial involucra being concave and bearded at top, and in the rays 
* In Prodr. Flor. Nov. Holl. p. 555. 
of 
