Solanum, Bitter

Spooner, David M., Van Den Berg, Ronald G., Peña, Antonio Rivera-, Velguth, Peter, Rio, Alfonso Del & López, Alberto Salas-, 2001, Taxonomy of Mexican and Central American Members of Solanum Series Conicibaccata (sect. Petota), Systematic Botany 26 (4), pp. 743-756 : 751

SOLANUM SERIES CONICIBACCATA Bitter , Feddes Repert. Spec. Nov. Regni Veg. 11: 381. 1912.

— Lectotype, chosen by D’Arcy (1972), S. oxycarpum Scheide in Schltdl .

Solanum [rankless] Oxycarpa Rydb. , Bull Torrey Bot. Club 51: 146, 172. 1924.

[Note: This description applies only to the Mexican and Central American members of ser. Conicibaccata ]. Plants to 0.2–2.5 m tall; stems 2–13 mm wide at base, green to purple, simple to branched; leaves odd pinnate, lateral leaflets with apex acuminate, base oblique, rounded to cuneate; terminal leaflet ovate to elliptical, apex acute to acuminate, base attenuate; interstitial leaflets absent or present; pseudostipular leaves auriculate; inflorescence terminal, sometimes later displaced laterally; pedicel 15–30 mm long; calyx tube 1.5–5 mm long, lobes 1–8 mm long, short and acute to long attenuate; corolla 2–3 cm in diam, rotate to rotate-pentagonal with short acumens, white to blue to purple, sometimes lined or mottled; filaments 1.5–2 mm long, anthers 4–5.5 mm long, cordate at base; style exceeding stamens by 2–3.6 mm; fruits conical, rounded to pointed at tip, medium to deep green or sometimes tinged with purple, 1.1–5 cm long. Chromosome number: 2 n = 4 x = 48.