Graphis erythrocardia Müller Arg. (1894: 280)

Kalb, Jutarat, Lücking, Robert & Kalb, Klaus, 2018, The lichen genera Allographa and Graphis (Ascomycota: Ostropales, Graphidaceae) in Thailand-eleven new species, forty-seven new records and a key to all one hundred and fifteen species so far recorded for the country, Phytotaxa 377 (1), pp. 448-450 : 448-450

* Graphis erythrocardia Müller Arg. (1894: 280) .

Type :— TANZANIA. Usambara, on bark, 1894, C . Holst 3081 ( G!, holotype; BM, isotype) .

Fig. 5B .

Thallus corticolous, whitish to whitish gray, continuous, smooth or slightly wrinkled, dull. Lirellae erumpent with lateral thalline margin, short to elongate, straight or curved, unbranched or sparsely irregularly branched, labia convergent, entire, black, not pruinose, disc concealed, ( lineola -morph). Exciple laterally carbonized; hymenium clear; ascospores 8/ascus, hyaline, transversely 9–15-septate, 40–65 × 9–10 μm, 7–13-septate, 50–60 × 7–10 μm (holotype, Lücking et al. 2009 and protologue).

Chemistry: norstictic acid (major), connorstictic acid (minor) (anal. K. Kalb).

Distribution and habitat:— G. erythrocardia is a rare species, only known from a few collections from Africa (type locality), Indonesia, Java ( Aptroot & Sparrius 2008 –present) and Australia (Archer 1999 as G. vinosa Müll. Arg. ). It is a new finding for Thailand where it is growing in a light, dry mixed evergreen forest at 600 m.

Remarks:—This species is characterized by lineola -morph lirellae, a clear hymenium and medium-sized, transverally septate ascospores and with norstictic acid in the thallus.

Material from Thailand examined:— Chiang Rai: Mae Chan district, tambon Pa Tueng, surroundings of Huai Kang Pla Waterfall , in a disturbed light, dry mixed evergreen forest with Pinus kesiya , 600 m, 20°05’29’’ N, 99°46’54’’ E, 6 December 2016, J. Kalb & K. Kalb s.n. (hb. K. & J. Kalb 41978) .

Figures

FIGURE 5. A. Graphis epimelaena (scale = 0.4); B. Graphis erythrocardia (scale = 0.5); C. Graphis flavovirens (scale = 1 mm); D. Graphis gonimica (scale = 0.25 mm); E. Graphis immersicans (scale = 0.5 mm); F. Graphis implicata (scale = 0.5 mm); G. Graphis insulana (scale = 0.7 mm); H. Graphis intricata (scale = 1 mm).