OF PLANTS CALLED COTtfPOSITTE. 307 



chinensis, 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 Encyclopedie Methodique, has under the article 

 Calea retained all the species of this genns given by Persoon ; 

 and also Calea aspera ; which, however, he has in a sub- 

 sequent 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 refer- 

 able to Gompositae, 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. 



Herha annua? glaberrima, ramosa, diffusa. Rami ad- 

 scendentes, angulati. Folia sparsa, petiolata, exstipulata, 

 spathulata mucronulo brevissimo, sesquiunciaha, crassi- 

 uscula ? glauca ? ssepiiis integerrima ; inferiora quandoque 

 extra medium dentata. Petioli lineares basi parum dilatata [iso 

 semiamplexicauli ; inferiores elongati ; superiores plerum- 

 que folio aliquoties breviores. Capitula solitaria, nunc 

 oppositifolia pedunculata, nunc terminalia subsessiha, basi- 

 flora, ovata, flava. Involucrmn simplici serie pentaphyllum, 

 capitulum floridum superans, foliaceum ; foholis insequalibus 

 spathulatis sessilibus integerrimis ipsa basi connatis. 

 Beceptaculum subulato-conicum, paleaceum. Paleee lan- 

 ceatse mucronulalae, inter flosculos hermaphrodito-masculos 

 magis manifestse, inter hermaphroditos passim abortientes. 

 Flosculi tubulosi, uniformes, glabri. 



Flosculi ambitus, duplici triplicive serie, hermaphroditi, 

 utroque organo perfecto. Corolla Tubus gracilis cylindraceus, 

 cum ovario continuus, basique stylo accretus, per lentem 

 10-striatus. Limbus infundibuhformis, 5-fidus, sestivatione 



