Graphis indica J. Kalb & Kalb, 2017

Kalb, Jutarat & Kalb, Klaus, 2017, New lichen species from Thailand, new combinations and new additions to the Thai lichen biota, Phytotaxa 332 (2), pp. 141-156 : 146

Graphis indica J. Kalb & Kalb , nom. nov. ( Fig. 2A )

Mycobank MB823629

≡— Hemithecium norsticticum Makhija & Dube in Makhija et al., Mycotaxon 93: 371 (2005).

This species is similar to G. balaghatensis , but differs mainly in lacking stictic acid. Our TLC analysis revealed norstictic acid (major) and subnorstictic acid (minor).

Distribution and habitat:—This species is known from India and is here reported for the first time from Thailand where it is growing on bark of a deciduous tree in a primary tropical rainforest at 1115 m.

Material from Thailand examined:— Chiang Mai province: Mae On district ; tambon Huai Kaeo, surroundings of Mae Kampong Waterfall, in a tropical rainforest, on bark of an unidentified tree, 1115 m. 18°51’33’’ N, 99°21’22’’ E, 13 December 2016, J. & K. Kalb 41769 (Hb. K. &. J. Kalb).

Remarks:—A new name was necessary for this species when transferred to the genus Graphis , because there is a different species already named Graphis norstictica A. W. Archer & Lücking , in Lücking, Archer & Aptroot (2009) with a laterally carbonized exciple and muriform ascospores.

Figures

FIGURE 2. A. Graphis indica (J.K. & K.K, KJK 41769; scale 1 mm); B. Leucodecton occultum (J.K. & K.K, KJK 41952; scale 0.25 mm); C. Phaeographopsis palaeotropica, ascomata with a distinct black mazaedium (J.K. & K.K, KJK 41398; scale 0.5 mm); D. Phaeographopsis palaeotropica, ascomata lacking a mazaedium (J.K. & K.K, KJK 41395; scale 0.4 mm); E. Platygramme australis (J.K. & K.K, KJK 41279; scale 0.5 mm); F. Platygramme commutabilis (Sutjaritturakan 4225, KJK 42227; scale 1 mm); G. Platygramme discurrens (Sutjaritturakan 4895, KJK 42217; scale 0.3 mm); H. Platygramme subcolubrosa (J.S. & K.K., KK 41534; scale 0.5 mm).