of ihe Class Composite. 171 
them by their discoverers, if not previously applied to other 
species, I have scrupulously preserved. In the distribution of 
the species, and in the formation of the generic divisions, I have 
followed the comprehensive views of Mr. Brown and M. Cas- 
sini, whose important labours in this class are universally ad- 
mitted: and having myself been engaged for several years 
studying this department of botany,—-of which very few have 
had so extensive opportunities,—the characters of the groups 
which I shall have to propose in the sequel, may, therefore, 
with more confidence be relied on. In order to render the di- 
visions more intelligible, I shall in the first place proceed to 
give a descriptive character of the class itself. 
COM POSIT JE. Adans., een 
ÉLoR26 seepius hermaphroditi, capitati, toro proprio insenti, 
sessiles, involucro e sanami» (folia mutata) sæpè plurimis 
inalusis i5. e 
CarLvx ovario ) arctè adherens : margo obsoletus- ve da 
plerumque scissus, aut in pappum formå varium abeuns, 
nunc (in Zinnid) corollam æmulans ! 
CoroLLA monopetala, tubulosa, limbo 5-fida (raró 4-fida), æsti- 
vatione valvata ! laciniis 2 v. 3 connatis nunc bilabiata, aut 
latere interiore longitudinaliter rupta, explanata, ligule- 
formis: nervis primariis laciniis alternantibus ! 
SrAMINA corollz laciniis numero zequalia, iisdemque alterna : 
filamenta libera v. partim aut omninó corolla tubo adhe-. 
. rentia, prope apicem articulata! articulo sup 
.. dissimili: anthera. biloculares: loculis par: 
; dinaliter d del solos» mittite 2 ua 
lis, ieit- 
| libus ; ; interiore an- 
