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Mangifera   sumatrana    Miq. is an endemic species from Sumatra. The taxonomic status of    M.   sumatrana    remains unclear and is currently treated as a synonym of    M.   laurina   . The present study employed morphological and palynological characters and molecular analyses to address the delimitation between the two species. Pollen observations were carried out with a Scanning Electron Microscope ( SEM ). Phylogenetic relationships were investigated using the  ITS  and the  trn l-F intergenic spacer markers.    M.   sumatrana    differs from    M.   laurina    by having pyramidal panicles with a low density of pale yellow flowers pale, sepals 3–3.5 × 1.7–2 mm, fruit roundish to flattened with pale yellow pulp, a rough fibre texture, and pollen with a prolate spheroidal shape. The MP phylogenetic tree showed a divergent boundary between the two species suggesting that    M.   sumatrana    could be an independent species, not a variety of    M.   laurina   . The present study supports the view that these two taxa can be treated as different species.

﻿Systematic reinstatement of the Sumatra endemic species Mangifera sumatrana Miq. ( Anacardiaceae )

Systematic reinstatement of the Sumatra endemic species Mangifera sumatrana Miq. ( Anacardiaceae )