MACRO- AND MICRO-MORPHOLOGICAL ANALYSES OF Entandrophragma angolense (Welw.) C.D.C. and Entandrophragma utile (Dawe & Sprague) Sprague
Keywords:
Micro-anatomical features, Leaf epidermis, Adaxial layer, Abaxial layerAbstract
Entandrophragma utile and Entandrophragma angolense are timber species with significant economic and ecological importance in the forestry sector. Understanding their morphological differences at both macro and micro levels is crucial for their identification, management and conservation. This study conducted a comparative analysis of the macro- and micro-morphological characteristics of Entandrophragma utile and E. angolense. Samples of E. angolense and E. utile were collected from Forestry Research Institute of Nigeria (FRIN), Oyo State, and Aponmu Forest Reserve, Ondo State, Nigeria, respectively. The bark texture, leaf structure, and fruit/seed shapes were determined following standard methods. The leaf epidermal cells of E. utile were wavy-patterned, while those of E. angolense were polygonal-shaped. The number of stomata of E. utile (42.60±1.70) was significantly higher than E. angolense (22.80±1.40), while epidermal cell length was 32.40±6.40 ?m and 63.96±5.80 ?m, respectively. The number of trichomes was higher in E. angolense (7.20±0.30) than E. utile (1.80±0.30). The micro-morphology of leaves differed between E utile and E. angolense. Hence, the cellular structure (abaxial and adaxial epidermal cell layers) and anatomy (mid-rib and bark features) of the two species were uniquely different. These are essential findings for their ethnobotanical use, identification, management, and conservation strategies.
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