Thorea baiyunensis Han, Nan & Xie, 2022

Han, Jinfen, Nan, Fangru, Feng, Jia, Lv, Junping, Liu, Qi, Liu, Xudong & Xie, Shulian, 2022, Thorea baiyunensis sp. nov. (Thoreales, Rhodophyta) and T. okadae, a new record from China, PhytoKeys 193, pp. 107-123 : 107

publication ID

https://dx.doi.org/10.3897/phytokeys.193.79667

persistent identifier

https://treatment.plazi.org/id/6B4AE1DE-D855-5B71-9170-499BF5CF4286

treatment provided by

PhytoKeys by Pensoft

scientific name

Thorea baiyunensis Han, Nan & Xie
status

sp. nov.

Thorea baiyunensis Han, Nan & Xie sp. nov.

Fig. 3I-T View Figure 3

Description.

Known only from the " Chantransia " sporophyte generation. Plant macroscopic, up to 25.9 mm, bluish; basal portion consisting of an irregular prostrate system of densely aggregated filaments; lateral branches developing at angle <25°. Vegetative cells of main branches cylindrical, (12.7) 13.6-63.6 (68.2) μm long and (8.2) 10.9-20.9 (22.7) μm in diameter. Monosporangia numerous, mostly grow at the tip of 1-5-celled, short branchlets, singly or in clusters, obovoidal, (11.8) 12.7-21.8 (23.6) μm long and (10.9) 11.8-16.4 (17.3) μm in diameter. Chloroplasts laminate or irregularly lobed, 2-4 per cell.

Diagnosis.

Diagnostic DNA sequence: rbc L and COI-5P (accession number: MZ648090, MZ648091, and MZ648092 for rbc L and MZ676780, MZ676781, and MZ676782 for COI-5P).

Type.

China, Guangdong Province, Baiyun Mountain, 540 m alt., 23°36.00'N, 113°49.53'E: epilithic on the rocks in spring water, November 2020, J.F. Han & K.P Fang (Holotype: SXU-SAS18040; Paratype: SXU-SAS18041). Deposited in Herbarium of Shanxi University (SXU), Shanxi University, Taiyuan, Shanxi Province GoogleMaps , China.

Habitat and distribution.

Baiyun Mountain (23°36.00'N, 113°49.53'E), Guangdong Province, China: on the rocks in spring water; water temperature 17.3-20.6 °C, pH 6.5-7.6 (Figs 1 View Figure 1 , 4A-C View Figure 4 ).

Etymology.

The species epithet refers to the type locality (Baiyun Mountain, China).

Authentic strain.

SXU-GD20224.

Kingdom

Plantae

Phylum

Rhodophyta

Class

Florideophyceae

Order

Thoreales

Family

Thoreaceae

Genus

Thorea