Pleopsidium gobiense (H. Magn.) Hafellner

Ai, Min, Miao, Cong Cong, Worthy, Fiona Ruth, Nurtai, Lazzat, Zhang, De Ning, Zhang, Sheng Bang, Han, Gui Lan, Wang, Li Song & Wang, Xin Yu, 2025, A new revision of the lichen genus Pleopsidium (Acarosporales, Acarosporaceae) in China reveals two new species, MycoKeys 120, pp. 255-276 : 255-276

Pleopsidium gobiense (H. Magn.) Hafellner , Nova Hedwigia 56 (3–4): 294 (1993)

Fig. 9

≡ Acarospora gobiensis H. Magn. , K. Svenska Vetensk-Akad. Handl., Ser. III 7 (4): 98, 1929.

Ind Loc.

“ Gobi Wüste, Lage VII SO von Chami 1895 Futterer ”.

Type.

• China. Xinjiang Prov.: Hami Ci., Balikun Co., Haiziyan Vil. , 43°36'10"N, 92°44'43"E, alt. ca 1570 m, on rock, 04 Jul. 2022, X. Y. Wang et al. XY 22-947 (neotype: KUN, designated here; isoneotype: SDNU) .

A more detailed description is in Magnusson (1929).

Note.

The type specimen was originally deposited at the Botanical Museum in Berlin-Dahlem ( Magnusson 1929) but has unfortunately been lost during World War II (Dr. Bibiana Moncada, curator of the Herbarium of the Botanischer Garten Berlin (B), personal communication). According to the protologue, the original specimen was collected from Hami (historically referred to as “ Chami ”) in China. Based on the original description, ecology, chemistry, and specimens from Hami, we confirmed the taxonomic identity of this species and provided supporting molecular data. In addition to its occurrence in Xinjiang, this species is also distributed in Gansu, Qinghai, and Neimenggu provinces in China ( Magnusson 1940, 1944).

Selected specimens examined.

China. • Xinjiang Prov.: Hami Ci., Balikun Co., G 335, 43°36'10"N, 92°44'44"E, alt. 1634 m, 4 Jul. 2022, L. S. Wang et al. 22-72982 ( KUN) ; • Hami Ci., Balikun Co., Haiziyan vil., 43°36'08"N, 92°44'42"E, alt. 1663 m, 4 Jul. 2022, D. Liu LD 22-513 ( KUN) ; • Zhaosu Co., Yuhu Lake , 81°03'03"N, 42°44'03"E, alt. 2010 m, 14 Sep. 2023, S. B. Zhang et al. XJ-ZSB 23-119 ( KUN) .

Figures

Figure 9. Pleopsidium gobiense (neotype, XY 22-947 KUN). A. General habitat; B. Thallus; C. Apothecia; D. Section of apothecium; E. Young ascus and paraphysis; F. Simple ascospores. E, F were stained with Lugol’s iodine solution. Scale bars: 10 µm (E, F); 50 µm (D); 5 mm (C).