Monographs Details: Miconia guaiquinimae subsp. angustifolia Wurdack
Authority: Maguire, Bassett & Wurdack, John J. 1961. The botany of the Guayana Highland--part IV (2). Mem. New York Bot. Gard. 10: 1-87.
Family:Melastomataceae
Description:Latin Diagnosis - Lamina usque ad 15 X 5 cm anguste elliptica apice graditer acuminata basi late acuta proportione longitudinis/latitudini ca. 3-4:1.

Distribution and Ecology - VENEZUELA: Bolivar: Cerro Guaiquinima, occasional in mixed montane forest at Intermediate Camp, alt. 1200 m; tree 15 m tall; 14 Jan 1952, Bassett Maguire 33102 (holotype, NY).

Discussion:Both M. pilgeriana and the closely related M. stellipilis Cogn. have much sparser foliar pubescence, with individually much larger stellate hairs, and considerably smaller flowers, with the hypanthium plus calyx only 1-2 mm long. The pubescence of M. guaiquinimae is intermediate between these two subandean species and that of the scorpioid-cymed group centering around the poorly distinguishable species M. punctata (Desr.) Don and M. lepidota DC; M. semisterilis Gleason, with compact-scorpioid inflorescence branches, seems to be a very close relative of these two widespread species, but has stamens similar to M. guaiquinimae and its relatives in sect. Glossocentrum. The inflorescence pattern is basically quite different in the two species-groups, with the M. pilgeriana-group having four branches per main inflorescence axis node while the M. punctata-gronip has two branches per node.