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A new species of Gesneriaceae, Hemiboea siccinvolucris B.Pan adaxially nearly glabrous to pubescent and abaxially glabrous to pubescent in H. subcapitata ; glabrous on both surfaces in H. liana ) and by its green abaxial surface (vs. pale green or purplish in H. cavaleriei and H. subcapitata ; lilac in H. liana ). The terminal cyme has only 1–3 flowers (vs. pseudoterminal or axillary cymes with three or more flowers in H. cavaleriei and H. subcapitata ; terminal, usually 1-flowered, occasionally 2-flowered in H. liana ). The spherical involucre dries early before anthesis (vs. spherical, with no records of early involucre desiccation in H. cavaleriei and H. subcapitata ; trigonous, with no records of early involucre desiccation in H. liana ); the stigma is reniform (vs. obtuse in H. cavaleriei and H. subcapitata ; shallowly bilobed in H. liana ). Phylogenetic analyses based on both ITS sequences and chloroplast genome data show that all sampled individuals of this taxon form a well-supported monophyletic group, supporting its recognition as a new species. Detailed morphological descriptions, line drawings, comparative diagnostic characters, and molecular phylogenetic analyses are provided.
Fang et al. (Tue,) studied this question.