154 
THALAMIFLORjE. 
the base of the cell : cotyledons more or less curved 
upon the radicle, occasionally straight . — De Cand. 
et Lindt. 
Trees or shrubs, erect or climbing. All of them natives of 
the warmer parts of the globe. 
I. Cardiospermum. Heart-peas. 
Calycine sepals 4, with 2 of them small. Petals 
4, internally appendiculated, with the appendices un- 
equal. Glandules 2, hypogynous, between the petals 
and the stamens. Stamens 8. Styles 3. Carpels 3, 
inflated, membranaceous, connate at the axis, winged 
on the back, evalvular. Seeds globose, with a broad 
cordate hilum. Cotyledons thick, unequal . — De 
Cand. 
Stems herbaceous or suffruticose, sub-scandent. Peduncles 
racemose at the apex, with the 2 inferior branchlets abortive 
and cirrhose. — Name, from xagei/a the heart, and seed. 
1. Cardiospermum villosum. Common Heart-pea. 
Branches villous, leaves biternate, leaflets incised 
crenato-serrated incano-villous especially beneath, 
glandules 2 hypogynous abbreviated rounded, capsules 
spherical hispidulous. 
Pisum vesicarium, fructu nigro alba macula notato, Sloane, I. 
238 — Cardiospermum, Broume, 213. — C. lialicacabum, Lunan, 
IJort. Jam. I. 365. 
HAB. Common on fences and in thickets, in dry hot situa- 
tions. 
FL. Spring. 
Stem fruticose at the base : branches scandent, 7-anguloso- 
sulcated, subincano- villous. Leaves alternate, biternate : leaf- 
lets (the centre one the largest), petiolulated, ovate, apiculated, 
inciso-serrated with the lobes rounded, nerved and veined, in- 
cano-villous especially beneath : petiole terete, 3-lineated above. 
Racemes axillary, longer than the leaf, compound, with the two 
lower branchlets cirrhose : peduncle tetranguloso-sulcated, sub- 
incano-villous : pedicels about 3 lines in length, filiform, to the 
glass minutely puberulous. $ Flowers deciduous: the two 
outer sepals roundish, green, very minutely ciliated : 2 inner 
sepals much longer than the outer, subpetaloid, roundish, con- 
cave, glabrous. Petals 4, larger than the inner sepals, obovate, 
furnished at the base with a petaloid scale, induplicated with a 
