Graphis lecanactiformis (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

3. Graphis lecanactiformis (Zahlbr.) Z.F. Jia & Luecking comb. nov.

Graphina lecanactiformis Bas.: Zahlbr., in Handel-Mazzetti, Symb. Sin. 3: 57, 1930; Type: China (Yunnan), Handel-Mazzetti 7147 (holotype W!).

Description.

Thallus corticolous, crustose, surface grey-yellowish, slightly rough; apothecia lirelliform, sessile, oval to elongate, single, not branched, 1-1.2 mm long and 0.6-0.9 mm wide; discs open in the type material and appearing yellow-brown pruinose, but this could be due to damage; labia entire; proper margin conspicuous, black; proper exciple laterally carbonized; hymenium clear, 240-290 µm high. I–; 8 ascospores per ascus, hyaline, ellipsoid, muriform, 7 –8/1– 3 locular, I+ violet, 37-45 × 15-18 µm.

Chemistry.

No substances present.

Notes.

Because of the characteristics of thallus and lirellae, this species belongs to Graphis and is here recombined as G. lecanactiformis. It is similar to Graphis tenuirima (Shirley) A.W. Archer in anatomy, but differs in ascoma morphology (dussii morph according to Lücking et al. 2009) and the larger ascospores. In the world key to Graphis ( Lücking et al. 2009), this species would key out at couplet 23 in Group 5.