]> [author note: Herbarium and types: NY; other specimens in B, BH, BR, DBN, G, LZ, M, US. Cactaceae, Euphorbiaceae, Crassulaceae] [collector note: B, BH, BR, G, LZ, M, NY, US] Botany Berger, Alwin Berger, Alwin A.Berger A. Berger Alwin Berger 1871 1931