Phaeographis haloniata (Zahlbr.) Z.F. Jia & Luecking

Jia, Ze-Feng & Luecking, Robert, 2017, Resolving the species of the lichen genus Graphina Muell. Arg. in China, with some new combinations, MycoKeys 25, pp. 13-29 : 24-25

4. Phaeographis haloniata (Zahlbr.) Z.F. Jia & Luecking comb. nov.

Graphina haloniata Bas.: Zahlbr., Feddes Repert. 31: 216, 1933; Type: China (Taiwan), Asahina 356 (holotype W!)

Graphina plumbicolor = Zahlbr., Feddes Repert. 31: 217, 1933; Type: China (Taiwan), Asahina 340 (holotype W!)

Description.

Thallus corticolous, crustose, thick, surface grey to olive-green, waxy and slightly warty; apothecia lirelliform, elongate, single and rarely branched, at most 9.0 mm long and 0.5 mm wide; discs open, brownish, slightly pruinose, flat to somewhat concave; proper margin obvious, concolorous with thallus; proper exciple slightly carbonized basally; hymenium inspersed, 100-125 µm high, I–; 8 ascospores per ascus, brownish, ellipsoid, muriform, 8/1-3 locular, I+ violet-brown, 30-35 × 10-14 µm.

Chemistry.

Stictic acid.

Notes.

Because the material of Graphina haloniata in W has the typical characteristics of Phaeographis , such as open discs and brownish ascospores, it is here transferred to Phaeographis . The reported differences between Graphina haloniata and G. plumbicolor were in ascospore size: 30-34 × 12-14 µm in G. haloniata and 29-30 × 10-11 µm in G. plumbicolor ( Zahlbruckner 1933), but in the studied material these measurements largely overlap. The two names were only reported from their type locations in Taiwan ( Zahlbruckner 1933, 1940; Lamb 1963; Wang and Lai 1973; Wei 1991).