Solanum cordovense
Not known.
Roadsides, forest edges, pastures, and secondary growth in moist to wet forest, Mex. – Pan., S. Amer.; 100-1750 m
Solanum cordovense is a member of the Brevantherum clade sensu Bohs (2005). Its phylogenetic position within that clade has not been investigated using molecular data.
Bohs, L. 2005. Major clades in Solanum based on ndhF sequence data. Pages 27-49 in R. C. Keating, V. C. Hollowell, and T. B. Croat (eds.), A festschrift for William G. D’Arcy: the legacy of a taxonomist. Monographs in Systematic Botany from the Missouri Botanical Garden, Vol. 104. Missouri Botanical Garden Press, St. Louis, MO.
D’Arcy, W. G. 1973. Solanaceae. Flora of Panama. Annals of the Missouri Botanical Garden 60: 573-780.
Knapp, S. 2008. Typification of Solanum (Solanaceae) species described by Martín de Sessé y Lacasta and José Mariano Mociño. Anales del Jardín Botánico de Madrid 65: 7-23.
Solanum cordovense can be recognized by its combination of stellate hairs, no spines, very short peduncles, foliaceous calyx lobes, and dark purple to black fruits.
Most collections of S. cordovense from elevations of 1000 m or more have leaves with the upper surfaces sparsely pubescent to glabrescent. Plants with dense pubescence on all parts, including the upper leaf surfaces, have been segregated as S. extensum. These collections generally have a more scandent habit, possess stellate hairs with very long, often gland-tipped midpoints, and occur below ca. 1000 m in elevation. Further study may reveal that S. cordovense and S. extensum comprise two distinct species, but they are combined here due to their lack of consistent morphological or geographical distinctions.
In S. perattenuatum the leaf blades are very long and narrow (length to width ratio 5-10 or more), with elongated attenuate apices. Otherwise, the pubescence, flowers, and fruits resemble those of S. cordovense. It is likely that these collections represent virally-infected individuals of S. cordovense.