Statut pour la Guyane française
Funk, V., Hollowell, T., Berry, P., Kelloff, C. & Alexander, S. N. 2007. Checklist of the Plants of the Guiana Shield (Venezuela: Amazonas, Bolivar, Delta Amacuro; Guyana, Surinam, French Guiana). Contributions from the United States National Herbarium, 55: 1-580. [GF = P]

 

Taxonomie
Da Rocha, M. J. R., Guimarães, P. J., Michelangeli, F. A. & Nogueira Batista, J. A. 2017. Taxonomy of Marcetieae: A New Neotropical Tribe of Melastomataceae. International Journal of Plant Sciences, 179(1): 50-74.

 

Statut pour la Guyane française
Véron, S., Rodrigues-Vaz, C., Lebreton, E., Ah-Peng, C., Boullet, V., Chevillotte, H., Gradstein, S., Jérémie, J., Lavocat Bernard, E., Lebouvier, M., Meyer, J., Munzinger, J., Poncy, O., Thouvenot, L., Viscardi, G., Léotard, G., Gargominy, O., Leblond, S., Pignal, M., Rouhan, G., Tercerie, S., Invernon, V. & Muller, S. 2021. An assessment of the endemic spermatophytes, pteridophytes and bryophytes of the French Overseas Territories: towards a better conservation outlook. Biodiversity and Conservation, 30: 2097-2124. [GF = S]

 

Date de publication : Willdenowia, 2(5): 770-771. 1961 [30/03/1961].

Description originale : Ernestia blackii Brade et Markgr. spec. nov.
Suffruticosa erecta, ramosa, 50 cm alta; ramis obtuse tetragonis vel subteretiusculis, rubris, densiuscule glanduloso-pilosis, densiuscule foliosis; foliis parvis, ovatis, breviter petiolatis, basi breviter acuminatis, apice acutiusculis, margine apicem versus leviter crenulato-serrulatis, supra brevissime glanduloso-pilosis, subtus densiuscule breviterque glandulosopilosis, utrimque tenuissime glanduloso-punctatis, trinerviis, 0,7-1,5 cm longis, 0,4-0,8 cm latis, petiolo 1-3 mm longo; floribus 4-meris, saepius paucis breviuscule pedicellatis vel subsessilibus, ad apices ramorum terminalibus axillaribusque, paniculam basi foliosam formantibus; calycis denisuscule breviterque glanduloso-pilosi tubo ovoideo-campanulato, 4-4,5 mm longo, 3 mm crasso, segmentis lineari-oblongis, apice breviter acutiusculis, tubo brevioribus, 3,5 mm longis, 1,5 mm latis; petalis roseo-purpureis, obovatis, basi attenuatis, apice acutiusculis, 10 mm longis, 6 mm latis, extus sparsissime glanduloso-pilosis, margine glanduloso-ciliatis; staminibus valde dissimilibus, antheris lineari-subulatis, 5 vel 6 mm longis, maiorum connectivo infra loculos longiuscule producto, arcuato, basi distincte geniculato, ad insertionem filamenti antice longe biaristato, aristis simplicibus basi vesicosis, minorum connectivo breviusculo, non geniculato, antice longe biaristato; ovario oblongo, triloculari, vertice glabro; stylo filiformi leviter flexuoso, 13-15 mun longo, basi sparsissime glanduloso-piloso; capsula subglobosa, 4 mm crassa, 3-valvi; seminibus cochleatis, tuberculatis.
Fundorte: Brasilien, Staat Pará, Trombetas, Rio Jaramacarú; leg. Egler No 224 et Black No 19509. - 26.5.1957. - "Typus": Museu Paraense "Emilio Goeldi" No 22 238. - "Isotypus": Herbarium Bradeanum.

Type : Brésil, Pará, Rio Jaramacarú (affluent du Trombetas) [pr. 01°10'S 55°42'W?, c. 400 km SSW de la trijonction Brésil / Suriname / Guyane française], 26/05/1957, fleurs et fruits, W.A. Egler 223 / G.A. Black 19509 (HT: MG-22238).