The objective of this collection o fpotatoes expedition was to collect germplasm of potatoes wild species for their conservation and regeneration to put them available to the international scientific community as well as to gather field data to carry on taxonomic studies. Atotal of accessions of five species was collected. Thirteen accessions of Solanum agrimonifolium were collected in the Huehuetenango, San Marcos, Quetzaltenango, Totonicapán, Sololá and Chimaltenango provinces located in altitudes ranging from 2,340 to 3,300 meters above sea level (masl); six accessions of S. bulbocastanum subsp. partitum were gotten in the Huehuetenango and Baja Verapaz provinces; 17 accessions of S. clarum were found in the Huehuetenango, San Marcos, Sololá, and Totonicapán provinces in altitudes extending from 3,000 to 3,500 masl; on1y one accession of S. demissum was found in Totonicapán province; and six accessions of S. morelliforme were gotten in Huehuetenango, San Marcos and Totonicapán provinces in altitudes ranging from 2,900 to 3,050 masl. The habitats where these species grow are very dist urbed due to deforestation and changes in the use of the soil. As a result, the guatemalan potato wild species are endangered species. It is notorious that in many locations where 50 years ago wild germplasm was gathered it no longer exist.