Se estudió la anatomía foliar y del peciolo de especies de Pterygota de Nigeria, proveyendo información sobre su distribución en el área. Principalmente están distribuidas por el sur de Nigeria, especialmente en zonas más húmedas. Los microcaracteres foliares muestran que las especies son hiposteomátcas y generalmente paracíticas, más abundantes en P. berquaertii, con un promedio de 115/mm 2 , que en P. macrocarpa, con 59/mm². Las células epidér-micas son irregulares, rectangulares y poligonales. El peciolo esfé-rico con epidermis uniseriada; la distribución celular varia desde solitarias a radiales múltiples. Este estudio ha proporcionado importante información sobre las especies indígenas. Son necesarios estudios posteriores para comprender grado y tiempo de evolución independiente de las especies en Nigeria.Palabras clave: Pterygota, Taxonomía, Foliar, Peciolo, Micromorfología, Conservación. AbstractLeaf and petiole anatomy of Pterygota species in Nigeria were studied and their distribution within the area is also reported, following outlined standard protocols. They are chiefly distributed in Southern Nigeria especially in wetter areas. Foliar micro-characters showed that the species are hypostomatic and generally paracytic, more abundant in P. berquaertii, with an average of 115/mm 2 , than in P. macrocarpa, where it is 59/mm 2 . Epidermal cells are irregular, rectangular and polygonal. Petiole spherical with uniseriate epidermis; cell distribution ranging from solitary to radial multiples. This study has provided valuable information about these indigenous species. Further systematic studies are vital to understand the number and timing of independent evolution of the species into Nigeria.
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