Sclerophyton seriale ( Acharius 1814: 108 ) Sparrius (2004: 77)

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 : 152

Sclerophyton seriale ( Acharius 1814: 108) Sparrius (2004: 77) . ( Fig. 3D )

This species is characterized by a pale brown, glossy thallus, ascomata aggregated in white stromata, 3-septate ascospores (17–22 × 4–6 μm) with an enlarged upper cell and the presence of psoromic acid.

Distribution and habitat:—A pantropical corticolous species growing in rainforests and restingas (dune forests) from sea level to 1200 m.

Material from Thailand examined:— Trang province: Palian district ; surroundings of Tontae Waterfall , on bark of unidentified tree in a tropical rainforest, 110 m, 07°17’41’’ N, 99°52’56’’ E, 23 May 2009, J. Suritturakan 3017 & S. Siemmai (Hb. K. & J. Kalb 42153) ; Trang province: Yan Ta Khao district ; tambon Thung Khai , in a tropical rainforest on bark of an unidentified deciduous tree, 25 m, 07°28’ N, 99°38’ E, 17 December 2016, J. Kalb & K. Kalb 42013 (Hb. K. & J. Kalb) .

Remarks:—The genus is a new addition to the Thai lichen biota.

Figures

FIGURE 3. A. Pseudotopeliopsis longispora (J.K. & K.K, KJK 41893; scale 0.5 mm); B. Ramonia minima, ascomata (holotype; scale 0.2 mm); C. Ramonia minima, section through ascoma (scale 25 μm; inlay, ascospores (scale 5 μm); D. Sclerophyton seriale (J.K. & K.K, KJK 42013; scale 1 mm); E. Traponora macrospora (K.K. et al., KK 36844; scale 0.2 mm); F. Trinathotrema stictideum (Vongshewarat s.n. RAMK; scale 0.3 mm).