Systematics of Solanum section Allophyllum (Solanaceae)

Three species of Solarium are included in a new section, Solarium sect. Allophyllum. Two of the species, S. allophyllum and S. mapiriense, have been previously known; the third, S. morellifolium Bohs, is described as new. The combination of characters exhibited by members of this section, such as unbranched hairs, 2-3-leaved sympodial units, simple leaves with decurrent bases, and tapered anthers, is unique to this group and does not agree well with any existing subgenus of Solarium.