Ofelia Vargas

Wild potato (Solanum sect.Petota) germplasm collecting expedition to Mexico in 1993, with special reference toSolanum bulbocastanum Dunal andS. cardiophyllum Lindley

SummaryA joint Mexico/United States expedition collected wild potato (Solanum sect.Petota) germplasm in Mexico between August 1–31, 1993. The purpose of the expedition was to expand germplasm and herbarium collections ofS. bulbocastanum andS. cardiophyllum. Collections were made from west-central to southern Mexico, and comprised 19 true seed and 37 tuber collections (45 collections in total) of 9 species and two putative natural hybrids.

Two new species of Physalis (Solanaceae) endemic to Jalisco, Mexico

Two new species ofPhysalis, both endemic to Jalisco, Mexico, are described and illustrated:P. longiloba andP. tamayoi.ResumenSe describen e ilustran dos nuevas especies dePhysalis endémicas de Jalisco, México:P. longiloba y.P. tamayoi.

A new species of Tzeltalia (Solanaceae) from Mexico

A new species of Tzeltalia (Solanaceae) from Chiapas, Mexico is described and illustrated: Tzeltalia esenbeckii. A key and a table, distinguishing the members of the genus, are included.