Checklist of the Vascular Plants of Annobón (Equatorial Guinea)

Velayos, Mauricio; Barberá, Patricia; Cabezas, Francisco; Estrella, Manuel de la; Fero, Maximiliano; Aedo, Carlos

doi:10.11646/phytotaxa.171.1.1

Cited by 15 publications

(15 citation statements)

References 42 publications

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“…(Droissart et al, 2009b) o Polystachya (Mytnik-Ejsmont, 2011) en los que se han revisado materiales herborizados en Guinea Ecuatorial y han contribuido a aumentar el conocimiento de las orquídeas ecuatoguineanas. Dentro del proyecto "Flora de Guinea Ecuatorial" se han publicado catálogos preliminares para las islas de Bioko (Velayos et al, 2013) y Annobón (Velayos et al, 2014), previos a la revisión de la familia Orchidaceae que venimos realizando desde 2013. En estos años hemos realizado una revisión profunda de materiales de herbario y de la información bibliográfica disponible para actualizar el catálogo de la familia en Guinea Ecuatorial.…”

Section: Resultsunclassified

“…Se proponen modificaciones al catálogo preliminar de la flora de Bioko (Velayos et al, 2013 La tribu Vandeae, con 118 especies, es la de más amplia representación, destacando la presencia de 43 especies y táxones infraespecíficos en el géne-ro Polystachya, seis más que los mencionados en Mytnik-Ejsmont (2011). Todos los representantes de esta tribu son epífitos, raramente litófitos, vinculados a la pluvisilva que constituye el bosque de mayor extensión en el territorio (Fa, 1991;Pérez de Val, 1993;Navarro Cerrillo et al, 2012).…”

Section: Discussionunclassified

“…Posteriormente, citan 128 táxones en su catálogo provisional. En los catálogos preliminares sobre la flora de las islas de Bioko (Velayos et al, 2013) y Annobón (Velayos et al, 2014) se mencionan 136 y 24 táxones, respectivamente. En la compilación efectuada por Govaerts et al (2016) se contabilizan 124 táxones para el acrónimo EQG (Equatorial Guinea), y 212 para el acrónimo GGI (Gulf of Guinea islands), que comprende el conjunto de las islas de Annobón, Bioko, Príncipe y São Tomé.…”

Section: Introductionunclassified

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Catálogo de la familia <em>Orchidaceae</em> en Guinea Ecuatorial

2018

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CheCklist of the family orChidaCeae in equatorial Guinea.-The current state of knowledge on Orchidaceae in Equatorial Guinea is provided, based on herbarium collections and bibliographic revision. Orchidaceae are represented in Equatorial Guinea (Annobon, Bioko and Rio Muni) by 225 taxa, and 12 more requiring confirmation, belonging to 43 genera and 10 tribes of the subfamilies Vanilloideae, Orchidoideae and Epidendroideae. Eighty eight taxa have been added for Rio Muni to the previous checklists. The tribe Vandeae is the best represented with 118 taxa. Analysing the habit, 53 taxa are terrestrial, 6 scandent and 166 are epiphytes. The island of Bioko and the western provinces of Rio Muni show the major diversity in orchids. Thirty one species have been described from materials collected in Equatorial Guinea, six of which are considered endemics.Key words: Annobon; Bioko; Epidendroideae; habit; Orchidoideae; Rio Muni; Vanilloideae. ResumenCatáloGo de la familia Orchidaceae en Guinea eCuatorial.-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.

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Section: Resultsunclassified

Section: Discussionunclassified

Section: Introductionunclassified

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Catálogo de la familia <em>Orchidaceae</em> en Guinea Ecuatorial

2018

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“…Bip., Gnaphalium foetidum L., and Gnaphalium fruticans Schrank, are associated with the species [21][22][23][24][25][26][27]. The species is native to Burundi [28], Cameroon [29], Democratic Republic of Congo (DRC) [28,30], Equatorial Guinea [31], Eritrea [25], Ethiopia [25,28,[32][33][34][35][36][37][38][39], Kenya [3,28], Malawi [5,26,28], Nigeria [28,40], Rwanda [41], São Tomé and Príncipe (Gulf of Guinea) [42], Somalia [27], South Africa [20,21,24,43,44], South Sudan [28,45], Sudan [28,45], Tanzania [28,46,47], Uganda [28,48], and Yemen [28,49]...…”

Section: Introductionmentioning

confidence: 99%

Medicinal Uses, Biological and Phytochemical Properties of Helichrysum Foetidum (L.) Moench. (Asteraceae)

Maroyi

2019

Asian J Pharm Clin Res

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Helichrysum foetidum is a medicinal plant species with various medicinal applications among different ethnic groups in Africa, Asia, and Europe. This review was aimed at providing a critical appraisal of the existing medicinal uses, biological activities, and phytochemical components of H. foetidum. Literature search for information on medicinal uses, biological activities, and phytochemical components of H. foetidum was conducted using various online search engines such as Scopus, Google Scholar, Mendeley, and Web of Science. Additional information on these aspects was sourced from the university library. Literature studies revealed that H. foetidum is mainly used to induce trances and as herbal medicine against wounds, sores, dysmenorrhea, eye infections, influenza, and as a sedative. Phytochemical compounds identified from the species include chalcones, diterpenoids, flavanols, flavonoids, phenolics, phenols, and proanthocyanidins. Pharmacological studies revealed that H. foetidum extracts and compounds have antibacterial, antifungal, antiviral, antioxidant, protease-inhibiting, and cytotoxicity activities. There is a need for advanced phytochemical and pharmacological evaluations and clinical trials aimed at evaluating the therapeutic potential of H. foetidum in Africa, Asia, and Europe.

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“…Cyclosorus afer (Christ) Ching also known as Pneumatopteris afra (Christ) Holttum has been reported as a widely spread fern in many countries in Africa such as Cameroon, Ghana, Liberia and Sierra Leone (Mazumdar, ), Gabon (Mundy, ), Equatorial Guinea (Velayos et al, ), Togo (Abotsi, Kokou, Dubuisson, & Rouhan, ). Its occurrence and widespread abundance has been reported in Nigeria after it was introduced in the early 1960s as an ornamental plant.…”

Section: Introductionmentioning

confidence: 99%

Modelling the distribution of a potential invasive tropical fern, Cyclosorus afer in Nigeria

Akomolafe

Rahmad

2019

Afr J Ecol

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In this study, we predicted the distribution of Cyclosorus afer in Nigeria using the Maximum Entropy (Maxent) technique. We used 95 occurrence points in one State to extrapolate its spread in other States in Nigeria. Three sites of sizes 500 × 500 m2 separated by minimum distance of 1,000 m2 were sampled in the study area. Seven bioclimatic and elevation variables were selected for the model. Maxent model was run using standard settings with 70% of the occurrence data as training and remaining 30% as test data. The result showed that Maxent performed better than random prediction due to the area under curve for receiver operating characteristics of training (0.990) and test data (0.987) closer to 1. The sensitivity of the Maxent model for occurrence data of C. afer was found to be 100%. The model predicted higher probability of occurrence covering an area of 26019.11 km2 in 4 States of Nigeria. Jackknife evaluation of the model revealed that the environmental predictors of C. afer in Nigeria are annual mean temperature, mean temperature of driest quarter, precipitation seasonality, Precipitation of driest quarter and precipitation of coldest quarter. These variables all showed higher gain and contributions to the model.

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Checklist of the Vascular Plants of Annobón (Equatorial Guinea)

Cited by 15 publications

References 42 publications

Catálogo de la familia <em>Orchidaceae</em> en Guinea Ecuatorial

Catálogo de la familia <em>Orchidaceae</em> en Guinea Ecuatorial

Medicinal Uses, Biological and Phytochemical Properties of Helichrysum Foetidum (L.) Moench. (Asteraceae)

Modelling the distribution of a potential invasive tropical fern, Cyclosorus afer in Nigeria

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