CXVIII. ETJBIACE^. 485 



CoEOLLA mon'o'petalous, epigynous, isostemonous, (Estivation valvate or [imbricate 

 or] contorted. Stamens 4-6, inserted on the corolla-tube., Ovaet inferior, bi—pluri- 

 locular; OVULES anatropous, or semi-campylotropous. Embryo almost always albu- 

 minous. — Leaves opposite, stipulate. 



Trees, shrubs or herbs, .usually with tetragonous knotty jointed stems. 

 Leaves opposite [or wliorled], simple, usually entire, stipulate; stipules various, 

 sometimes free, sometimes united to tlie leaf or the neighbouring stipule, sometimes 

 leaf-like, and appearing to form a whorl with the leaves, but distinguished by the 

 absence of buds. Flowers usually S , very rarely Unisexual, sometimes sub-irregular, 

 generally cymose, panicled or capitate. Calyx superior or semi-superior, ^ubular, or 

 deeply cut or 2-6-fid or -toothed or 0. Corolla superior, monopetalous, infundi- 

 buliform or hypocrateriform or rotate [rarely 2-labiate, H&nriquezia, Dichilanthe, 

 &c.] ; limb of 4-6 segments, usually equal, Eestivation valvate, rarely contorted or 

 imbricate. Stamens 4-6 [2 in Garlema/mnia and Sylvianthus], inserted on the tube, 

 very rarely coherent ; anthers introrse, bilocular, dehiscence longitudinal, distinct, 

 very rarely cohering in a tube. Ovary inferior, bi-pluri-locular, crowned by a more 

 or less developed fleshy disk ; style simple bifid or multifid, stigmatiferous at the 

 top or inner surfaces or sides of the arms ; ovules solitary or 2 or more in each cell, 

 erect or pendulous, or ventrally attached to the central angle or septum of the cell, 

 or to a prominent placenta, anatropous or semi-campylotropous. Fruit a capsule, 

 berry or drupe. Seeds in various positions ; albumen fleshy or cartilaginous, or 

 ■almost horny, rarely scanty or 0, sometimes involute. Embryo straight or curved, iii 

 the base or axis of the albumen; cotyledons flat, rarely involute; radicle usually 

 inferior. 



[Sketch of the aurangement oiRubiacecB into tribes, as recently constructed for 

 the ' Genera Plantarum ' :^ 



SERIES A. Ovules indefinite. 



Sub-series I. Fruit dry, capsular or indehisceht. 



* Flowers Dolleoted in d globose head} 



Teibb I. NAucLBJi. — Corolla narrow, infundibuliform, lobes never contorted. Stigma 

 much exserted, entire. Sarcooephalus, Oephalanthus, Adma, Nauclea, TJncauria, &c. 



* Flowers not collected into spherical heads. 

 Tribe II. Cinchonej!. — Gorolla-lobes valvate, imbricate or contorted. Capsule 2-celled, 

 seeds winged. Ovnohona, Oascarilla, Ladenlergia, Bov/aardia, Manettia, Hindsia, Millia, Fxo- 

 . stermna, IiuouUa, &c. . ■ - 



Teibb III. Heneiqueziej:. — Corolla 2-labiate. Ovules geminate. Seeds very broadly 

 winged, exalbuminous. Henriquezia, Platyearpwm. 



Teibe IV. CoMAMiNiEa:. — Gorolla-lobes valvate. Capsule 2-celled. Seeds numerous, 

 minute, not winged. Trees and shrubs. Gondaminea, Portlandm, Bihlda, Pinkneya, &o. 



Tkibb V. RONDELETIEJ!. — Gorolla-lobes imbricate or contorted. Seeds very numerous, 

 albuminous, not winged. Bondeletia, Wendlandiai, Augusta, Beppea, Sipanea, &c. 



Tribe VI. Hedyotideji.— Corolla-lobes valvate. Ovary 2-4-celled. Seeds numerous, 



' See also under tribes Gardeniecs and Morindete. 



