Pfeiffera monacantha subsp. monacantha
Pfeiffera monacantha subsp. monacantha sec. Korotkova & al. 20101
- 1. Korotkova, N., Zabel, L., Quandt, D. & Barthlott, W. 2010: A phylogenetic analysis of Pfeiffera and the reinstatement of Lymanbensonia as an independently evolved lineage of epiphytic Cactaceae within a new tribe Lymanbensonieae. – Willdenowia 40: 151-172. http://doi.org/10.3372/wi.40.40201