Hedyotis longiramulis (Rubiaceae), a new species from south China

Hedyotis longiramulis sp. nov. (Rubiaceae) is described from Guangdong Province, China. It is similar to H. caudatifolia but differs in having puberulent, more or less tetragonal and decussately sulcate juvenile stems, waxy leaf surface, short inflorescence peduncles, high length ratio of corolla lo...

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Main Authors: Yi-Da Xu, Ying Zhang, Rui-Jiang Wang
Format: Article
Language:English
Published: Pensoft Publishers 2023-08-01
Series:PhytoKeys
Online Access:https://phytokeys.pensoft.net/article/87675/download/pdf/
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author Yi-Da Xu
Ying Zhang
Rui-Jiang Wang
author_facet Yi-Da Xu
Ying Zhang
Rui-Jiang Wang
author_sort Yi-Da Xu
collection DOAJ
description Hedyotis longiramulis sp. nov. (Rubiaceae) is described from Guangdong Province, China. It is similar to H. caudatifolia but differs in having puberulent, more or less tetragonal and decussately sulcate juvenile stems, waxy leaf surface, short inflorescence peduncles, high length ratio of corolla lobe to tube, and subglobose capsules. The phylogenetic analysis reveals that H. longiramulis is sister to H. pubirachis. Dimorphism concerning pollen size was observed in the heterostylous flowers. The complete chloroplast genome of the new species comprises a typical quadripartite structure of 153,616 bp in length, with two inverted repeats of 25,457 bp, a large single-copy of 85,050 bp and a small single-copy of 17,652 bp. It contains 112 unique genes, including 79 protein-coding genes, 29 tRNA genes, and four rRNA genes, the GC content of the chloroplast genome is 32.4%. The new species is provisionally evaluated as “Least Concern” because it is common and well-protected in two Provincial Nature Reserves.
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spelling doaj.art-2ebc37c522594e7f8a74c2afef4804ee2023-08-20T08:11:04ZengPensoft PublishersPhytoKeys1314-20032023-08-0123027128710.3897/phytokeys.230.8767587675Hedyotis longiramulis (Rubiaceae), a new species from south ChinaYi-Da Xu0Ying Zhang1Rui-Jiang Wang2Core Botanical Gardens, Chinese Academy of SciencesCore Botanical Gardens, Chinese Academy of SciencesCore Botanical Gardens, Chinese Academy of SciencesHedyotis longiramulis sp. nov. (Rubiaceae) is described from Guangdong Province, China. It is similar to H. caudatifolia but differs in having puberulent, more or less tetragonal and decussately sulcate juvenile stems, waxy leaf surface, short inflorescence peduncles, high length ratio of corolla lobe to tube, and subglobose capsules. The phylogenetic analysis reveals that H. longiramulis is sister to H. pubirachis. Dimorphism concerning pollen size was observed in the heterostylous flowers. The complete chloroplast genome of the new species comprises a typical quadripartite structure of 153,616 bp in length, with two inverted repeats of 25,457 bp, a large single-copy of 85,050 bp and a small single-copy of 17,652 bp. It contains 112 unique genes, including 79 protein-coding genes, 29 tRNA genes, and four rRNA genes, the GC content of the chloroplast genome is 32.4%. The new species is provisionally evaluated as “Least Concern” because it is common and well-protected in two Provincial Nature Reserves.https://phytokeys.pensoft.net/article/87675/download/pdf/
spellingShingle Yi-Da Xu
Ying Zhang
Rui-Jiang Wang
Hedyotis longiramulis (Rubiaceae), a new species from south China
PhytoKeys
title Hedyotis longiramulis (Rubiaceae), a new species from south China
title_full Hedyotis longiramulis (Rubiaceae), a new species from south China
title_fullStr Hedyotis longiramulis (Rubiaceae), a new species from south China
title_full_unstemmed Hedyotis longiramulis (Rubiaceae), a new species from south China
title_short Hedyotis longiramulis (Rubiaceae), a new species from south China
title_sort hedyotis longiramulis rubiaceae a new species from south china
url https://phytokeys.pensoft.net/article/87675/download/pdf/
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