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<p>A new species of <i>Buchnera</i> L. is described, <i>Buchnera hirsutorepens</i>, from south-eastern Democratic Republic of the Congo, and central and eastern Zambia. <i>Buchnera hirsutorepens</i> is split from <i>Buchnera prorepens</i> Engl. &amp; Gilg, which is also redescribed here, its range now encompassing Angola and Western Zambia. These two species are unique in the genus <i>Buchnera</i> in their prostrate habit and axillary flowers. They can be separated from each other by differences in indumentum of the inflorescence and leaves, bract shape, pedicel length and relative length of the corolla tube to the calyx. A distribution map of georeferenced specimen localities of the two species is provided, along with information on their habitat and ecology, and an evaluation of their conservation status based on IUCN guidelines and criteria.</p>

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Buchnera hirsutorepens, a new species of prostrate Orobanchaceae from Zambia and the Democratic Republic of the Congo, along with a revised description of Buchnera prorepens

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  • 发表日期：

    2026年5月13日

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  • John K. Gibson,
  • Mpande Sichamba,
  • Iain Darbyshire

摘要

A new species of Buchnera L. is described, Buchnera hirsutorepens, from south-eastern Democratic Republic of the Congo, and central and eastern Zambia. Buchnera hirsutorepens is split from Buchnera prorepens Engl. & Gilg, which is also redescribed here, its range now encompassing Angola and Western Zambia. These two species are unique in the genus Buchnera in their prostrate habit and axillary flowers. They can be separated from each other by differences in indumentum of the inflorescence and leaves, bract shape, pedicel length and relative length of the corolla tube to the calyx. A distribution map of georeferenced specimen localities of the two species is provided, along with information on their habitat and ecology, and an evaluation of their conservation status based on IUCN guidelines and criteria.