MORPHO-ANATOMICAL STUDY OF TWO CLOSELY RELATED SPECIES OF OLDENLANDIA (RUBIACEAE) IN NIGERIA

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ABSTRACT

Morpho-anatomical study of Oldenlandia corymbosa L. and Oldenlandia affinis (Roem & Schult.) DC. in the family Rubiaceae was undertaken in order to assess the taxonomic relationship of the two species. Ten samples of each of the two species were randomly collected from their natural regions of provenance, Nkalagu (derived Savanna), Nsukka (derived Savanna), and Otukpo (Southern Guinea Savanna).