Abstract
Two new species of Gesneriaceae, Wentsaiboea tiandengensis Yan Liu & B. Pan and Wentsaiboea luochengensis Yan Liu & W. B. Xu from Karst caves in Guangxi, China are described and illustrated. Wentsaiboea tiandengensis resembles W. renifolia, but differs in the leaf blade being cordate or broadly ovate, the margin crenate or repand, with conspicuous pinnate veins 3–5 on each side, corolla throat constricted, corolla lobes ovate with apex acute, staminodes 3, and ovary broadly ovoid. Wentsaiboea luochengensis is similar to W. renifolia, but can be distinguished from the latter by the coriaceous leaf blade with 2–3 inconspicuous pinnate veins on each side, elliptic or broadly ovate to sub‐rotund in shape, with sub‐entire margin and attenuate to cuneate or sub‐rotund base, broadly ovate or sub‐rotund corolla lobes, rotund or obtuse apex, and 3 staminodes.
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