This very fine Geranium is, as yet, only in the Clapham Collection; it has no properties, which regard its culture or propagation, differing from the rest of its congeners; was sent from the Cape, by Mr. Niven, in 1800. Flowers in July. The leaves of this species have most affinity, in appearance, to those of G. melananthum, particularly in being like them frequently eared, and even sometimes winged. We have named it, specifically, from the singular revolute character of the involucrum, at the base of each bunch of flowers. [Illustration] PLATE CCCLV. LEEA PINNATA. _Winged-leaved Leea._ CLASS V. ORDER I. _PENTANDRIA MONOGYNIA._ Five Chives. One Pointal. GENERIC CHARACTER. CALYX. Perianthium monophyllum, campanulatum, coriaceum, quinquedentatum, persistens. COROLLA monopetala; tubus longitudine calycis; limbus quinquefidus, æqualis; laciniis saccatis. _Nectarium_ basi interioris corollæ adnatum, corolla dimidio brevius, erectum, urceolatum, quinquefidum; lobis emarginatis. STAMINA. Filamenta quinque, inserta basi exteriori nectarii. Antheræ ovatæ, versatiles. PISTILLUM. Germen subglobosum. Stylus simplex, nectario brevior. Stigma obtusum. PERICARPIUM. Bacca orbiculata, depressa, quinquelocularis. SEMINA quinque, solitaria. EMPALEMENT. Cup one leaf, bell-shaped, leathery, five-toothed, remaining. BLOSSOM one petal; tube the length of the cup; border five-cleft, equal; segments bagged. _Honey-cup_ fixed to the base of the inside of the blossom, by the half shorter than the blossom, erect, pitcher-shaped, five-cleft; lobes notched at the end. CHIVES. Five threads inserted into the outside of the base of the honey-cup. Tips egg-shaped, versatile. POINTAL. Seed-bud almost globular. Shaft simple, shorter than the honey-cup. Summit blunt. SEED-VESSEL. Berry orbicular, flattened, five-celled. SEEDS five, solitary. SPECIFIC CHARACTER. Leea foliis impari-pinnatis, oppositis; caule tereti, glabro; racemis angulatis, angulis undulatis. Leea with winged leaves terminated by an odd one and opposite; stem round and smooth; branches angled; angles waved. REFERENCE TO THE PLATE. 1. The Cup, natural size. 2. A Blossom. 3. A Flower complete, magnified. 4. The Honey-cup, shewn from the inside, cut open, a little magnified. 5. A Blossom, with the Honey-cup and Chives, magnified. 6. The Honey-cup and Chives shewn from the outside, magnified. 7. The Pointal, magnified.