Pseudotopeliopsis longispora Papong, Lücking & Parnmen

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

Pseudotopeliopsis longispora Papong, Lücking & Parnmen in Papong et al. (2014a: 223) ( Fig. 3A )

This species is characterized by an olive-green corticate thallus, small, immersed-erumpent chroodiscoid ascomata with layered margins. It differs from all other Pseudotopeliopsis species in having long 21–29-trans-septate ascospores of 100–150 × 15–18 μm.

Distribution and habitat:—The type material was collected in relict montane forest in the northern part of Grande Terre, New Caledonia. The Thai specimen originates from the southeast of Thailand in a ± pristine tropical rainforest at 130 m.

Material from Thailand examined:— Satun province: Khuan Kalong district ; tambon Thung Nui, Panan Waterfall; in a tropical rainforest, on bark of an unidentified tree, 130 m. 06°51’27’’ N, 100°09’36’’ E, 19 December 2016, J. Kalb & K. Kalb 41893, det. R. Lücking (Hb. K. & J. Kalb) .

Remarks:—This genus is a new addition to the Thai lichen biota and the second record of this species following its description ( Papong et al. 2014a).

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).