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Raphiocarpustaygiangensis (Gesneriaceae), a new species from central Vietnam

Raphiocarpustaygiangensis, a new species of Gesneriaceae family discovered in Tay Giang District, Quang Nam Province, Central Vietnam, is here described and illustrated. The new species is diagnosed by the combination of its stem up to 2 m long, sericeous hairs on young stem, leaf petiole and adaxia...

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Detalles Bibliográficos
Autores principales: Nguyen, Cuong Huu, Van Phung, Khoa, Sinh Nguyen, Khang, Averyanov, Leonid V., Truong, Vuong Ba, Tran, Chu Van, Cao, Hai Xuan, Chu, Quan Ngoc, Vu, Hau Bich Thi, Pham, Thoa Kim Thi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pensoft Publishers 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9846282/
https://www.ncbi.nlm.nih.gov/pubmed/36762269
http://dx.doi.org/10.3897/phytokeys.218.96511
Descripción
Sumario:Raphiocarpustaygiangensis, a new species of Gesneriaceae family discovered in Tay Giang District, Quang Nam Province, Central Vietnam, is here described and illustrated. The new species is diagnosed by the combination of its stem up to 2 m long, sericeous hairs on young stem, leaf petiole and adaxial mid-vein, sparsely and minutely serrate leaf margin, axillary inflorescence spreading along stem, sparsely long gland-tipped hairs on peduncle, pedicel, calyx, outside corolla and pistil, calyx 5-disparted from base, purplish white flower with purple stripes inside corolla tube, and dish-shaped stigma formed by 2 semi-orbicular lobes horizontally expanding. Distinct features of the new species and its morphologically closest congener, Rhaphiocarpusaxillaris, are compared and discussed. The conservation status of the described species is estimated as Vulnerable (VU D2) according to the IUCN Red List Criteria.