Erica mannii (Alm & T.C.E.Fr.) Beentje subsp. usambarensis [family ERICACEAE], in Utafiti 3, 1: 13 (1990). Type: Tanzania, Lushoto District: Usambara, Braun 2677 (B†, EA, syn.) & 2848 (B†, EA, syn.), same area: Engler 1275, Holst 38 & 423, Liebush s.n. (all B†, syn.), Eick 107 (B†, LD fragment, syn.)
Philippia usambarensis Alm & T.C.E.Fr. [family ERICACEAE], in K. Svenska Vetensk.-Akad.Handl. ser. 3, 4 (4): 35 (1927); T.T.C.L.: 194 (1949)
Philippia pallidiflora (Alm & T.C.E.Fr.) R.Ross subsp. usambarensis [family ERICACEAE], in B.J.B.B. 27, 4: 752 (1957); K.T.S.: 180 (1961)
Philippia benguelensis [family ERICACEAE], sensu K.T.S.: 179 (1961), non (Engl.) Britten
Philippia mannii (Alm & T.C.E.Fr.) R.Ross subsp. usambarensis [family ERICACEAE], in Bol. Soc. Brot. ser. 2, 53: 144 (1981) & in F.Z. 7(1): 178 (1983)