SPICILEGIA GORGONEA. 145 
glabris utrinque viridibus, petiolo basi incrassato coriaceo 
amplexicauli, caulinis oblongis acutis basi in appendicem 
rotundato-cordiformem amplexicaulem dilatatis, inflores- 
centia umbelliformi, capitulis rotundatis, involucri ovato- 
rhomboidei squamis acutis glabris margine minutissime 
denticulatis. 
Sonchum congestum, Link, refert sed involucri squamae valde 
diversee.—Ic. Tab. nost. X. 
Docto atque indefesso Josepho Dalton Hooker orbem An- 
tarcticam jam visuro ejusque floram illustraturo stirpem 
inter primas quas Britannia relicta compulit sacram dica- 
tamque voluimus. 
Has. In cacumine collis abrupti alt. 1500 ped. in valle 
S. Dominici ins. S. Jacobi (J. D. Hooker, n. 199. Nov. 
1839) et in ins. S. Vincentii copiosus ad apicem Montis 
Verede (Th. Vogel, Junio, 1841. sp. flor.) 
Tas. X. Fig. 1. floret ; f. 2. acheenium :—both magnified. 
RHABDOTHECA, Cass. 
Great confusion has all along existed in the classification 
of the plants attributed by DC. to the genus Microrhynchus, 
founded originally by Lessing on the second species of 
atolepis, Cass. viz. L. (Chondrilla, L.) nudicaulis, Cass, To 
the genus thus constituted by Lessing from this single plant, 
De Candolle appended in his first section three others, 
Sonchus divaricatus, Desf., as a mere var. of M. nudicaulis, 
Less., (we made the same mistake in the 77. Hisp.), M. patens, 
C. and M. asplenifolius, ejusd. The original M. mudi- 
caulis, and perhaps M. patens, alone truly belong to the 
8enus. M. nudicaulis, 8 divaricatus (S. divar. Desf.) is in 
Teality a very distinct species, in which, as in the cognate 
Species, M. asplenifolius, the pappus is entirely sessile, there 
ing at no time any appearance of beak either in the ovary 
or fruit. These plants, therefore, require to be removed from 
their present position; and we must see to what genus they 
can be conveniently attached. 
The first was erroneously supposed by De Candolle 
L 
