natural Family of Plants called Composite. 129 
Since the publication of Willdenow's Species Plantarum very 
few alterations have been made in the genus Calea. 
In Persoon’s Synopsis two of the species are excluded : namely, 
Calea scoparia, which, following Swartz, he has referred to Bac- 
charis; and Calea aspera, adopted from Richard as a species of 
Melananthera. The additional species in the work referred to are 
C. cordifolia of Swartz, already noticed as a genuine Calea ; C. acu- 
leata and spectabilis of Labillardiere, which -belong to Cassinia ; 
and C. cordata, adopted from Loureiro, of whose plant nothing is ` 
known except from the short description in Flora Cochinchinensis, 
which is only sufficient to render it probable that it neither belongs 
to Calea as I have proposed to limit it, nor to any of the genera 
hitherto confounded with it. | 
M. Poiret, in the Supplement to the Botanical Dictionary of the 
Encyclopédie Méthodique, has under the article Calea retained 
all the species of this genus given by Persoon ; and also Calea 
aspera; which, however, he has in a subsequent article correctly 
referred to Melananthera. 
Connected with the proper subject of this paper, I shall describe 
and add some observations on a plant lately sent from Brazil by 
Mr. Sellow ; which, though not strictly referable to Composite, 
probably belongs to a genus at present included in this family; and 
conclude with a few remarks on the structure and affinities of 
Brunonia. | 
I have named the Brazil plant 
ACICARPHA SPATHULATA. 
Herba annua? glaberrima, ramosa, diffusa. Rami adscendentes, 
angulati. Folia sparsa, petiolata, exstipulata, spathulata mu-. 
cronulo brevissimo, sesquiuncialia, crassiuscula ? glauca? sæ- 
piùs integerrima ; inferiora quandoque estra medium dentata. 
OZ XII. * Petioli 
