New species and notes on type specimens of South African Encephalartos [Protologue(s): Encephalartos princeps; New combination(s): Encephalartos trispinosus]
J. S. African Bot. 31(2): 111-121
Hutchinson, J; Rattray, G
1933
Cycadaceae
Fl. Cap. (Harvey) 5(2): 24-44
43-44
As synonym of E. laevifolius
Lemaire, CA
1867
Deux especes nouvelles d'Encephalartus (Cycadaceae)
Ill. Hort. 14: 79-81
80-81
Protologue description
Osborne, R
1987
Focus on Encephalartos ghellinckii
Encephalartos 12: 16-23
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