Solanum bulbo. x cardio.
Last edited by:
Spooner, D.M.
Written by:
Spooner, D.M.
Habit:
Herbaceous tuber-bearing perennials 0.6-8 m tall. Stems 4-5 mm in diameter at base of plant.
Sympodial structure:
Sympodial units typically 3-6-foliate.
Leaves:
Pseudostipules to 6-12 mm long, lunate. Leaves simple or odd-pinnate, 8-16 cm long, 3-8 cm wide, pubescent or glabrescent adaxially and abaxially, simple leaves ovate or ovate-lanceolate, apex acute to short-acuminate, base cordate, rounded, cuneate or oblique; petioles 2.5-5.2 cm long, compound leaves 8-17.5 cm long, 4-5.5 cm wide, with one pair of lateral leaflets; lateral leaflets 2-6 cm long, 1-2 cm wide, ovate to ovate-lanceolate, apex acute, base oblique, sessile or decurrent; terminal leaflet 6.5-13 cm long, 2.5-7 cm wide, ovate to ovate-lanceolate, apex acute to short acuminate, decurrent to oblique; interjected leaflets absent.
Inflorescences:
Inflorescence a dichasially branched, ebracteate, monochasial or dichasial cyme, 2-3 forked, generally in the distal half of the plant, with 11-14 flowers, all flowers perfect, peduncle up to 2 cm; pedicels 6-7 mm long, articulate between the proximal ¼ and the distal ¼.
Flowers:
Flowers with the calyx up to 3-4 mm long, lobes triangular, acute, acumens 1-1.5 mm long. Corollas up to 1.6 cm in diameter, stellate, without acumens, edges of corolla flat, not folded dorsally, white. Anthers up to 4 mm long, connate, yellow, apically poricidally dehiscent and often maturing to a short introrse apical slit, filaments 1-4 mm long. Ovary with style 6-8 mm long, exceeding stamens by 2.5-3 mm, straight, with stigma globose.
Fruits:
Fruits unknown.
Seeds:
Seeds unknown.
Distribution:
Only one population is known: MEXICO. Jalisco. Mpio. Tala, road between the ranch and arroyo Presitas, University of Guadalajara School forest “La Primavera.” 1450 m, 1 Aug 1991, A. Rodríguez & O Vargas 2104 (IBUG).
Phenology:
The sole collection was made 1 Aug, 1991.
References:
Spooner, D.M., R.G. van den Berg, A. Rodríguez, J. Bamberg, R.J. Hijmans, & S.I. Lara-Cabrera 2004. Wild potatoes (Solanum section Petota; Solanaceae) of North and Central America.
Syst. Bot. Monog. 68: 1-209 + 9 plates.
Spooner et al. (2004) listed this hybrid here as an example of yet another possible hybrid combination. It grows with its parents and is morphologically intermediate between them.