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PELARGONIUM gibbosum. 
Knotted Stork' s-hill. 
P. gibbosum, limbellis multifloris, foliis ternatis glaucis i 
foliolis pbtusis inciso-dentatis; intermedio cuneato 
petiolato trifido, caule nodoso: nodis tumidis, tubo 
nectarifero calyce quadruple longiori. 
Pelargonium gibbosum. Willden. sp. pi. 3. p. 684. 
Pers. syn. 2. p. 233. Hort, Kew. ed. 2. v. 4. p. 181. 
Geranium gibbosum. Andrews's geran. c. ic. Cav. diss. 
4. p. 265. t. 109. /. 1. Burm. afric. 31. f. 2. 
Stem shrubby, succulent, swoln at the joints. 
Branches erect, or slightly spreading, smooth, glau- 
cous, knotted, and swoln at irregular distances ; knots 
rough, arising from the permanent bases of the stipules. 
Leaves ternate, smooth and glaucous ; side leaflets ob- 
tuse, some of them sessile, others petiolate, irregularly 
cut and toothed; intermediate one cuneate, petiolate, 
trifid ; middle segment of the large leaves lobed, irre- 
gularly cut and toothed. Petioles slightly flattened 
and furrowed on the upper side, convex on the lower, 
thickly covered with uneven hairs. Stipules cordate, 
ciliate, soon withering, caducous at the top, perma- 
nent at the base. Peduncles axillary, or opposite to 
the leaf, cylindrical, slightly hairy. Umbels many- 
flowered. Involucre of many lanceolate acute bractes, 
joined at the base. Pedicles very short. Calyx 5- 
cleft, segments lanceolate, bluntish, reflexed. Necta- 
riferous tube more than 4 times the length of the 
calyx, slightly flattened, a little furrowed on one side 
and ridged on the other, gradually tapering to the 
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