ARPHA Preprints, doi: 10.3897/arphapreprints.e91110

Raphiocarpus Raphiocarpus taygiangensis (Gesneriaceae), a new species from Central Vietnam

Cuong Nguyen^‡, Khoa Van Phung^§, Thoa Pham^|, Chu Tran^§, Hai Cao^§, Ba Vuong Truong^¶, Leonid Averyanov^#, Khang Sinh Nguyen^¤

‡ Vietnam National University of Forestry, Ha Noi, Vietnam§ Vietnam National University of Forestry, Hanoi, Vietnam| The University of Danang - University of Science and Technology, Da Nang, Vietnam¶ Institute of Tropical Biology, Ho Chi Minh, Vietnam# Komarov Botanical Institute of the Russian Academy of Science, St. Petersburg, Russia¤ Institute of Ecology and Biological Resources Vietnam Academy of Science and Technology, Hanoi, Vietnam

Corresponding author: Cuong Nguyen ( nguyenhuucuong.tvr@gmail.com )

Corresponding author: Leonid Averyanov ( av_leonid@mail.ru )

This is an open access preprint distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Citation: Nguyen C, Van Phung K, Pham T, Tran C, Cao H, Truong BV, Averyanov L, Sinh Nguyen K (2022) Raphiocarpus Raphiocarpus taygiangensis (Gesneriaceae), a new species from Central Vietnam. ARPHA Preprints. https://doi.org/10.3897/arphapreprints.e91110

Abstract

Raphiocarpus taygiangensis, a new species of Gesneriaceae from Tay Giang District, Quang Nam Province, Central Vietnam, is here described and illustrated. The new species is diagnostic by the combination of its long stem, serrate leaf margin, purple spots, purple longitudinal lines, and glandular short hairs inside corolla. Morphological distinctiveness of the new species from the most similar species, Raphiocarpus axillaris, is discussed. The conservation status of this species is estimated as Vulnerable (VU D2) according to the IUCN Red List Criteria.

Keywords

Endemism, flora of Vietnam, new taxon, plant diversity, plant taxonomy, Raphiocarpus