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Se presenta un catálogo actualizado de las especies y táxones infraespecíficos de la familia Orchidaceae en Guinea Ecuatorial, obtenido a partir de testimonios de herbario y revisión bibliográfica. Nuestros resultados indican la presencia de 225 táxones más 12 que requieren confirmación en el conjunto del territorio (Annobón, Bioko y Río Muni), incluidos en 43 géneros y 10 tribus pertenecientes a las subfamilias Vanilloideae, Orchidoideae y Epidendroideae. Se aportan 88 táxones más en el catálogo de Río Muni respecto a publicaciones precedentes. La tribu Vandeae es la más representada, con 118 táxones. Atendiendo al hábito, 53 táxones son terrestres, seis son trepadores y 166 son epífitos. La mayor riqueza de orquídeas se manifiesta en la isla de Bioko y en las provincias occidentales de Río Muni. De las 31 especies descritas sobre materiales ecuatoguineanos, seis son consideradas endemismos de Guinea Ecuatorial.

The article tries to present Las aventuras de un piloto en el golfo de Guinea, a story considered unanimously by the little scholars who have cited it so far to be the first colonial novel about the Spanish possessions in the Gulf of Guinea. We present a summary of the work and the historical circumstances surrounding it (history of the island of Annobon and its Spanish colonization) and a hypothesis about the author, who published under the pseudonym Donacuige.

The identification of 223 collections of the Lamiaceae family, from Bioko island, Rio Muni (Equatorial Guinea mainland) and Annobon, corresponding to 14 genera and 28 species, is presented. A key of genera and, in each genus, a key of species are included. The basionym and type material, a brief description, the known chromosomic numbers, the distribution area and some known popular uses from each species, also included are photographs of sheets and distribution maps. Some biogeographical aspects about the generic and specific distribution in the studied area are discussed. Calaminta pseudosimensis (Brenan) R. Morales, comb. nov. is proposed.

A chec klist of the Melastomataceae of Equatorial Guinea is presented with 57 taxa. Three species were accepted based only on literature records, their distribution área strongly suggests their presence in Equatorial Guinea. Six species are known from Annobón, 23 from Bioko and 49 from Río Muni. Best-represented genera are Memecylon (10), Calvoa (10) and Tristemma (7). Twenty-six taxa are newly recorded for the country. Heterotis obamae Lejoly & Lisowski is set in synonymy with the previously described Heterotis arenaria Jacq.-Fél.