Aulacocalyx talbotii is a species of flowering plant in the family Rubiaceae. It is a shrub or tree with cream-coloured flowers, and dark brown or purplish fruits. The species is native to west-central Africa.
Aulacocalyx talbotii was described in 1913, and is listed as of Least Concern by the IUCN.
Taxonomy Aulacocalyx talbotii was described by Herbert Fuller Wernham in 1913, and initially placed in the genus Dorothea. It was the type species of Dorothea. In 1958, Ronald William John Keay synonymised Dorothea and Aulacocalyx.
Distribution Aulacocalyx talbotii is native to Nigeria, Cameroon, Gabon, and the Republic of the Congo. Its estimated extent of occurrence is . The species grows in lowland rainforests.
Description Aulacocalyx talbotii is a shrub or tree that grows up to high. The trunk is greyish-green or cream with brown fibres. The branches are striped.
The leaves are elliptical to oblanceolate, light green to brown when dry, long, and wide. The leaf stem is long.
The inflorescence grows on a stem, and has three to five cream coloured flowers. The flower stems are long. The young buds are rod-shaped. The calyx tube is greenish-brown, long, and wide at the top. The hypanthium is slightly shorter than the calyx tube. The corolla is long, and yellowish, greyish, or green. The corolla has six to eight lobes, which are long, wide.
The fruits are around long, wide, round, and dark brown or purplish. The seeds are around long, wide, and black when dry.
Conservation In 2018, the IUCN assessed Aulacocalyx talbotii as of Least Concern. Its habitat may be threatened by urbanisation and logging.
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