干旱区生态环境知识资源中心

Based on 168 Disciseda collections, collected over 20 years in 6 vegetation types in Sonora, 5 species were determined: D. bovista, D. candida, D. hyalothrix, D. stuckertii, and D. verrucosa. Species studied are distributed in arid, semiarid, and in urban areas. D. cervina previously reported from Sonora was excluded, because corresponds to another species undetermined. Some collections showed a different sporal ornamentation from valid species, and we propose further research based on genetic and morphological characteristics to identify possible new species.