Boswellia oropedionis (Burseraceae) sp. nov., a frankincense tree from Socotra, and notes on B. ameero and B. bullata

The new species Boswellia oropedionis Thulin and M.H.Weber is described, illustrated by photographs and mapped. This tree is only known from a small population growing on level limestone on the Qatariyah plateau in southern Socotra and is the twelfth endemic species of Boswellia from the Socotra arc...

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Published inNordic journal of botany Vol. 2025; no. 9
Main Authors Thulin, Mats, Weber, Michael H., Mubarak, Sami Ali Mohammed
Format Journal Article
LanguageEnglish
Published Oxford, UK Blackwell Publishing Ltd 01.09.2025
Subjects
endemic species
taxonomy
Yemen
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ISSN0107-055X
1756-1051
DOI10.1002/njb.04801

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Summary:The new species Boswellia oropedionis Thulin and M.H.Weber is described, illustrated by photographs and mapped. This tree is only known from a small population growing on level limestone on the Qatariyah plateau in southern Socotra and is the twelfth endemic species of Boswellia from the Socotra archipelago. It differs from B. dioscoridis Thulin by having 7–9‐foliolate leaves with pubescent nerves on the upper side, and by having larger flowers and fruits. Boswellia ameero Balf.f. is shown to have broadly winged pyrenes, an unusual feature in the genus and unique among the species on Socotra. Two new localities are reported for B. bullata Thulin, which is shown to have mostly narrowly winged pyrenes.
ISSN:0107-055X
1756-1051
DOI:10.1002/njb.04801