Fruits of members of the Elaeagnifolium clade. A Solanum elaeagnifolium, immature berries with green mottling (Argentina, Córdoba, Barboza et al. 3434) B Solanum elaeagnifolium, mature fruit with sticky tan seeds (Argentina, Córdoba, Barboza et al. 3435) C Solanum mortonii, immature fruit exerted from the calyx (Argentina, Catamarca, Barboza et al. 3439) D Solanum mortonii, mature fruit exerted from the calyx (Argentina, Catamarca, Barboza et al. 3438) E Solanum houstonii, immature fruit enclosed in accrescent calyx (Mexico, Querétero, Ochoterena et al. 976) F Solanum houstonii, mature fruit enclosed in accrescent calyx with black seeds (Mexico, Querétero, Ochoterena et al. 976). Photographs by S. Knapp.