Arthur Clague Hoyle

Brachystegia kennedyi is a species of plant in the family Fabaceae. It is found in Cameroon and Nigeria. It is threatened by habitat loss.

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Brachystegia nigerica is a species of plant in the family Fabaceae. It is found in Cameroon and Nigeria. It is threatened by habitat loss.

Belonophora coriacea is a species of flowering plant in the family Rubiaceae. It is found in Nigeria, Central African Republic, Cameroon, Equatorial Guinea, Congo-Brazzaville, and Congo-Kinshasa (Zaire or Democratic Republic of the Congo).

Massularia is a genus of flowering plants belonging to the family Rubiaceae. Its native range is Western and Western Central Tropical Africa.

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Calpocalyx cauliflorus is a species of flowering plant in the family Fabaceae. It is found in Cameroon and Nigeria.

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Librevillea is a genus of flowering plants in the family Fabaceae. It contains a single species, Librevillea klainei, a shrub or tree native to Cabinda, Cameroon, Congo, Gabon in west-central tropical Africa. The genus belongs to the subfamily Detarioideae.

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Chidlowia is a genus of flowering plants in the family Fabaceae. It belongs to the mimosoid clade of the subfamily Caesalpinioideae. It contains a single species, Chidlowia sanguinea, a tree native to West Africa (Guinea, Sierra Leone, Liberia, Côte d'Ivoire, and Ghana) and Chad.

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Vepris glandulosa is a species of plant in the family Rutaceae. It is endemic to Kenya. It is threatened by habitat loss.

Nauclea nyasica is a species of flowering plants in the family Rubiaceae. It was originally described as Burttdavya nyasica by Hoyle in 1936 as the only species in the genus Burttdayva. The species (and genus) was transferred to Nauclea in 2014. It is a large tree found in Tanzania, Malawi, and Mozambique.

Dactyladenia johnstonei is a species of flowering plant in the family Chrysobalanaceae. It is a shrub or tree native to western Cameroon and southeastern Nigeria. In Cameroon it is found in the Mount Kupe and the Bamenda Highlands. Its natural habitats are forested valley slopes in submontane forests at elevations of 950 to 1,600 m. It is threatened by habitat loss due to logging and clearance for agricultural land. The species was first described as Acioa johnstonei by Arthur Clague Hoyle in 1932. In 1979 Ghillean Prance and Frank White placed the species in genus Dactyladenia as D.

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