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https://ia601901.us.archive.org › 12 › items › biostor-255284 › biostor-255284.pdf
Abstract : Three new species of Placodiscus Radlk. are described : P. atténuants J. B. Hall from lvory Coast and Ghana, P. bracteosus J. B. Hall from Ivory Coast, Ghana and Nigeria, and P. oblongi/olius J. B. Hall from Liberia, Ivory Coast and Ghana. Ail of these species hâve at some time been identified as