Mitriostigma barteri Hook. f. ex Hiern (1877, p. 111)
Based on the same type: Randia barteri (Hook. f. ex Hiern) K. Schum. (1891, p. 75).
Lectotype (designated here): Equatorial Guinea, Bioko, Mann 234 (lectotype: K000419877 in K, isolectotypes: BR (photo), K, P) .
Distribution
Lower Guinean regional subcentre of endemism: Bioko, Cameroon (Fig. 4).
Additional specimens examined
Cameroon Southwest Province: Bakingili, Akogo 150 (SCA); Upper Boando, Cable 265 (K, SCA); Etinde, Etuge 1242 (K); lower slopes of Mount Etinde (Small Mount Cameroon), ca 10 km west of Limbe, above the village of Batoke, Maurin et al. 6 (K) ; Moliwe, Hunt 95 (SCA); Dikulu, Jaff 87 (SCA); between Upper Boando and Etome, Kwangue 136 (K, SCA) ; Mabeta - Moliwe, Watts 174 (SCA); ibid., Sunderland 1469 (K), ibid., Tchouto 181 (K, SCA, WAG, YA); Moliwe, Watts 202 (SCA); ibid., Watts 420 (SCA); Mbonge village, Mambo and Thomas 150 (BR, MO, WAG); Etome, Nning 127 (SCA); Mabeta, Etome, Tchouto 1628 (SCA); Bolo forest on Kumba - Mamfe road, 50 km north of Kumba, Thomas and Nemba 5897 (K, MO, YA) ; mature (old secondary) forest in northeastern corner of Korup National Park, near Baro village, Thomas 3360 (K, MO, YA) .
Littoral Province: near Ndoktiba, Bafang-Yabassi road, 15 km southsoutheast Nkondjok, Letouzey 11168 (K, P, WAG, YA) .
Equatorial Guinea Bioko, Carvalho and Casas 3000-2 (K); ibid. Barter s. n. (K, syntype).