Dataset Information

Rediscovery of Primulabrachystoma (Primulaceae), a rare species endemic to Gaoligong Mountain of Chinese-Burma frontier.

ABSTRACT: The rare Primulabrachystoma W.W.Sm. is an endemic species confined to Gaoligong mountain of Chinese-Burma frontier, which has been rediscovered from the same region after nearly 100 years. In total, 11 specimens from Gaoligong Mountain have been found in the herbaria worldwide, since its first collection in 1920 by Farrer, Reginald John. Previously, this species was described as homostylous but our finding shows the species also exhibited heterostyly. A complete description of the species, the distribution, morphological comparison and identification key from closely related species are provided here. An assessment of its conservation status suggests that the species is 'Endangered' (EN).

SUBMITTER: Jiang XQ

PROVIDER: S-EPMC10242399 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Rediscovery of <i>Primulabrachystoma</i> (Primulaceae), a rare species endemic to Gaoligong Mountain of Chinese-Burma frontier.

Jiang Xiao-Qi XQ Zhang Na N Wu Zhi-Kun ZK

PhytoKeys 20230529

The rare <i>Primulabrachystoma</i> W.W.Sm. is an endemic species confined to Gaoligong mountain of Chinese-Burma frontier, which has been rediscovered from the same region after nearly 100 years. In total, 11 specimens from Gaoligong Mountain have been found in the herbaria worldwide, since its first collection in 1920 by Farrer, Reginald John. Previously, this species was described as homostylous but our finding shows the species also exhibited heterostyly. A complete description of the species ...[more]

PMID: 37287940

Similar Datasets

Project description:For those familiar with boreal bogs and wet tundra, species of Eriophorum ("the cotton grasses") will undoubtedly represent some of the most striking and memorable taxa they have encountered. This small genus of 20 Holarctic sedge species (Cyperaceae) is remarkable because its inflorescences produce large, brilliantly white to rusty-red cottony masses when its flowers develop a perianth of highly elongated bristles after anthesis. In this study, we document the rediscovery of Eriophorum scabriculme, a narrow Vietnamese endemic known from only two collections made approximately 7 km apart near Sa Pa in Lào Cai Province over 75 years ago. Using plastid DNA sequences (matK, ndhF), embryology, and morphology, we test whether E. scabriculme is aligned within the Scirpo-Caricoid Clade (genus Khaosokia and tribes Cariceae, Dulichieae, Scirpeae, and Sumatroscirpeae) or the Ficinia Clade (Cypereae), and we determine whether its unique character combinations (≥10 elongated bristles, reduced sheathing basal leaves, 1-4 spikelets) could be evidence for a new genus or simply mark it as an unusual species within currently recognised genera. In addition, we document the discovery of seven new populations, and we extend its range westward to Lai Châu Province and southward in Lào Cai Province by more than 47 km. Our results demonstrate that Eriophorum scabriculme is best treated in the genus Trichophorum, thus re-circumscribing both genera and their limits with Scirpus s.str. In addition, we emend the description of Trichophorum scabriculme (Beetle) J.R.Starr, Lév.-Bourret & B.A. Ford, provide the first pictures and accurate illustration of the species, and assess its conservation status in Vietnam (VU, Vulnerable). Our study corroborates the fact that in such a diverse and taxonomically difficult family like the sedges, conspicuous characters like highly elongated bristles may be useful for dividing diversity, but they are no guarantee that the groups they mark are natural.

Dataset Information

Rediscovery of Primulabrachystoma (Primulaceae), a rare species endemic to Gaoligong Mountain of Chinese-Burma frontier.

Publications

Rediscovery of <i>Primulabrachystoma</i> (Primulaceae), a rare species endemic to Gaoligong Mountain of Chinese-Burma frontier.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets

Dataset Information

Rediscovery of Primulabrachystoma (Primulaceae), a rare species endemic to Gaoligong Mountain of Chinese-Burma frontier.

Publications

﻿Rediscovery of <i>Primulabrachystoma</i> (Primulaceae), a rare species endemic to Gaoligong Mountain of Chinese-Burma frontier.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets

Rediscovery of <i>Primulabrachystoma</i> (Primulaceae), a rare species endemic to Gaoligong Mountain of Chinese-Burma frontier.