A. DICOTYLEDONES, 
EXOGENA. 
| 
I. THALAMIFLOR E, DC.—Cr.1. HYPOPETALÆ, 
| Juss. 
CALYX of several sepals that are sometimes combined 
at the base. Petals several, distinct or rarely united, some- 
times abortive or wanting ; usually hypogynous or inserted 
upon the receptacle. Torus usually free from the calyx. 
Stamens inserted with the petals. 
ORDER L—RANUNCULACEJE. Juss. 
Sub-ord. 1. RANUNCULINEX (Arn.) Sepals distinct, various in 
number, from 3 to 15, but usually 5, deciduous: estivation generally 
imbricative, sometimes valvular. Petals hypogynous, 5—15 (or absent 
by abortion), distinct. Stamens hypogynous, distinct, indefinite in 
number: anthers adnate, extrorse. Ovaria seated on the torus, inde- 
finite, or rarely (by abortion) solitary, usually distinct, rarely somewhat 
united: style one to each ovary, simple: ovules solitary? or several, 
adhering to the inner edge. Carpels various, either achenia which are 
sometimes baccate, or follicular with 1-2 valves. Albumen between 
fleshy and horny. Embryo minute, inclosed in the albumen near its 
base-—Herbaceous, suffrutescent, or rarely shrubby plants. Leaves 
alternate, or sometimes opposite, variously divided: petiole dilated, 
and forming a sheath half-clasping the stem. Hairs, when present, 
simple. 
I. CLEMATIS. Linn.; Lam. ill. t. 497 ; Gertn. fr. t. 74. 
Involucre none or resembling a calyx, and placed under the flower. . Se- 
pals 4-8, coloured, in sestivation either valvate or with their edges bent in- 
A 
