A Taxonomic Study Of Blepharis Edulis (forssk.) Pers. Complex (acanthaceae)

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The species Blepharis edldis (Forssk.) Pel's. has for long been mistaken with B.rnlinaria~folia Pers. and B. ciliaris (L) B. L. Burt or B. boranensis Vol/esen (ined.) andrnmost of the collections identified indiscriminately. While revising the genus, attemptrnby Vol/esen to separate the species, though with considerable observedrnmorphological variation o.fspecimens, wasfitlile and recommended an in./i"aspecificrnstudy based on morphology. This study, ther~fore, employs phenetic techniques onrngross morphology, both mature and seedlings characters in conjunction withrnpalynological evidence to disentangle B. edulis complex and related taxa. Clusterrnanalysis segregatedfour groups, which were filrther verified by Principal ComponentrnAnalysis, Discriminant Analysis and Non-Parametric Analysis. Importantly,rnvegetative and .floral characters discontinuously or pal"fially separated the accruedrncluster groups. These results were fitrther supported by palynology. Subsequently,rnthese taxa were described as B. boranensis Vol/esen (ined.), B. edulis val'. edulisrnPers., B. edulis val'. glabra Malombe val'. nov. and B. edulis val'. isabellae Malombernval'. nov. The species B. boranensis, a part./i"om clear separation in the ordinationrnspace, it is mOJphological/y discrete from all the other affiliated groups. B. edulisrnval'. edulis is distinguished discontinuously from B. edlliis val'. isabel/ae and partiallyrnfrom B. edulis val'. glabra byfeatures of cotyledon colour, number and arrangementrno.fleafmarginal spines. More so, the three varieties lack a wide geographicalrnvariation.

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A Taxonomic Study Of Blepharis Edulis (forssk.) Pers. Complex (acanthaceae)

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