Article

The distribution of Solanum physalifolium var. nitidibaccatum and Solanum sarrachoides in Spain is described. These alien species are noI included in any Spanish Flora and are nOI menlioned in any European or Medilerranean Flora as occurring in Spain. Both species show marked similarities and were long considered to belong lo a single species, S. sarrachoides; however there are c1ear and precise differences belween Ihem. Useful differenlial characlers, here sludied, are found among morphological (size and forrn of cOlyledons, size and form of calyx, pubescence, elc .), micromorphological (microstructure of Ihe berry, of the episperm, of the types of hairs, elc), physiological (band palterns obtained by electrophoresis) and ecological fealures.