natural Family of Plants called Composite. 13} 
ovulo ovato pendulo, paulo infra apicem affixo funiculo crassi- 
usculo ex ipso apice angustato cavitatis orto; chorda vascu- 
lari a puncto insertionis ad extremitatem inferiorem ejusdem 
lateris attingenti. Stylus filiformis glaber, inferne cum basi 
tubi corollæ connatus. Stigma simplex obtusum hispidulum. 
Flosculi superiores numerosi hermaphrodito-masculi, paulo minorés 
hermaphroditis, calycis laciniis submembranaceis ; ovariis (pari- 
ter connatis) imperfectis, sæpius absque ovulo. 
Pericarpia (flosculorum ambitüs) : Achenia conferruminata, sin- 
. gula..coronata. calyce aucto 5-spinoso, spinis patulis conico- 
_ subulatis e substantia suberosa axi solidiori rigida. 
Fees pendulum, ovatum extremitate superiore acuminato : testa 
membranacea: membrana propria nucleo adherens. Albumen 
figura seminis, carnosum, copiosum, album. Embryo axilis, 
subcylindraceus, longitudine fere albuminis, albus, dicotyledo- 
neus. Cotyledones lineares, obtuse, plano-convexæ, vix longitu- 
dine Radicule cylindraceæ, supera. 
Notwithstanding the great difference between my account of 
this plant and that given by M. de Jussieu of his Acicarpha tribu- 
loides, Y have very little doubt that they both belong to the same 
genus; though from the above description it is evident that Aci- 
carpha spathulata is not referable to Composite. To this plant 
Calycera of Cavanilles, in the seeds of which M. Correa has found 
albumen, seems to be very nearly related; and a third genus, 
probably referable to this group, is Boopis, described by M. de 
Jussieu in the same Memoir with Acicarpha; The important 
characters, however, of the pendulous ovulum and inverted em- 
bryo remain to be ascertained in all these; and the presence 
of albumen in Acicarpha tribuloides (in Acicarpha lanata of La- 
gasca in Pers. Syn. ii. p. 488, if it really belong to this gentis), and 
s 2 in 
