Smith, G.F. and Figueiredo, E. 2019.

Aloe ×gemmelliae (Asphodelaceae subfam. Alooideae), a new natural hybrid between A. broomii and A. grandidentata from the southwestern Free State province, South Africa

. Phytotaxa. 423, 3 (Nov. 2019), 182–186. DOI:https://doi.org/10.11646/phytotaxa.423.3.6.