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Potoxylon is a monotypic genus of evergreen trees belonging to the Laurel family, Lauraceae. Its only species, Potoxylon melagangai,[3] is endemic to Borneo.
Potoxylon melagangai is an evergreen tree which grows up to 25 metres tall.[1] It has gray bark. Leaves are alternate, simple, leathery, with entire margins and pinnate venation. The inflorescences are grouped in axillary spikes. The flowers are bisexual and actinomorphic with six tepals in two whorls, 9 stamens in three whorls, the ovary superior and unilocular. The fruit, a berry-like drupe, is ellipsoid and dispersed by birds.
Potoxylon melagangai is endemic to Borneo, where it is known from western Sabah and northern Sarawak (Malaysia), Brunei, and East Kalimantan (Indonesia).[1]
It grows in lowland rain forests from 400 to 625 metres elevation.[1]
Phylogenetic analysis shows that Potoxylon diverged early from other Lauraceae.[4] Potoxylon, like the related genus Eusideroxylon, has an evolutionary history that is difficult to resolve because of the complex geological history of its native range, which has components from both the Gondwanan and Laurasian supercontinents, and consequently it is unclear whether Potoxylon evolved on Gondwana.
Potoxylon is a monotypic genus of evergreen trees belonging to the Laurel family, Lauraceae. Its only species, Potoxylon melagangai, is endemic to Borneo.
Potoxylon es un género monotípico de plantas con flores perteneciente a la familia Lauraceae. Su única especie: Potoxylon melagangai (Symington) Kosterm., es originaria de Asia tropical en Borneo. El género fue descrito por André Joseph Guillaume Henri Kostermans y publicado en Malayan Nature Journal 32: 14 en el año 1978.[1]
Es un árbol de hoja perenne con la hojas dispuestas de forma alterna, coriáceas , pinnatinervadas . Las flores son actinomorfas y bisexuales, con 6 tépalos, 9 estambres, el ovario unilocular superior y la inflorescencia en forma de espiga axilar. El fruto es una drupa con forma de baya, elipsoide.
Potoxylon es un género monotípico de plantas con flores perteneciente a la familia Lauraceae. Su única especie: Potoxylon melagangai (Symington) Kosterm., es originaria de Asia tropical en Borneo. El género fue descrito por André Joseph Guillaume Henri Kostermans y publicado en Malayan Nature Journal 32: 14 en el año 1978.
Potoxylon é um género botânico pertencente à família Lauraceae[1].
Potoxylon é um género botânico pertencente à família Lauraceae.
«Potoxylon — World Flora Online». www.worldfloraonline.org. Consultado em 19 de agosto de 2020