Turbina
Accepted name/Authority/Place of publication:
Turbina Rafinesque, Fl. Tellur. 4: 81. (1838).
Tribe:
Ipomoeeae
Synonyms:
Legendrea Webb and Berthelot, Hist. Nat. Iles Canar. 3(2): 26. 1844. Type: L. mollissima Webb and Berth. loc. cit. 27 (=Turbina corymbosa (L.) Raf. forma mollissima (Webb. and berth.) Stearn).
Rivea sensu auct. mult., non Choisy (1834) nec Ooststroom (1943).
Type Species:
Turbina corymbosa (L.) Raf.
Habit:
Lianas or erect shrubs; roots enlarged and fusiform in some species; sap milky in some species; older stems woody, twining, scrambling or prostrate (rarely erect), the tips herbaceous and usually twining, silvery pubescent or glabrous.
Leaves:
Leaves petiolate [or subsessile], the blade simple, cordiform or ovate [or narrowly oblong or linear], with 4-8 pairs of secondary veins, the veins often prominent on the under surface of the blade.
Inflorescences:
Inflorescence cymose or thyrsiform [or flowers solitary], axillary or terminal on lateral branches, the bracts 2, scale-like or foliaceous [or subulate or linear], often reddish colored and sometimes persistent in fruit.
Flowers:
Flowers showy, sometimes fragrant; sepals 5, quincuncial equal or unequal, appressed to the corolla at anthesis, accrescent, scarious and ± spreading in fruit; corolla campanulate, funnelform or salverform, greenish-white, pink, lavender or red, sericeous on the interplicae or with only a minute tuft of trichomes at the tip of each petal and otherwise glabrous; stamens 5, the filaments dilated basally and adnate to the corolla tube, free and filamentous above, with a tangle of glandular hairs around the point where each filament departs from the corolla, glabrous above and below that area; pollen spheroidal, spinulose, pantoporate; disc annular, ovary conical to void, glabrous [or silvery sericeous], the base often indurated and persistent in fruit, stigmas 2, globose.
Pollen:
Seeds ovoid or ellipsoid, puberulent with erect trichomes, rarely glabrous.
Fruits:
Fruit indehiscent, with a coriaceous or subligneous pericarp, usually 1-seeded, capped by the style base, subtended by the scarious, accrescent calyx.
Seeds:
Seeds ovoid or ellipsoid, puberulent with erect trichomes, rarely glabrous.
Distribution:
Distributed in the tropics of New Caledonia, Africa, and the Americas. It is likely that additional America taxa remain undescribed or assigned. map
Number of Species:
15
Contributors:
