Cruentotrema puniceum (Müll. Arg.) J. Kalb & K. Kalb 2016

Polyiam, Jutarat Kalb Wetchasart, Plata, Eimy Rivas, Bawingan, Paulina A., Kalb, Klaus & Lücking, Robert, 2016, ‘ Missing links’ alive? Novel taxa represent morphological transitions between distinctive phenotypes among extant Graphidaceae (lichenized Ascomycota: Ostropales), Phytotaxa 268 (2), pp. 110-122 : 115

Cruentotrema puniceum (Müll. Arg.) J. Kalb & K. Kalb , comb. nov. ( Fig. 3A–D )

MycoBank MB817483

Basionym: ― Arthothelium puniceum Müll. Arg., Hedwigia 32: 133 (1893); Thelotrema puniceum (Müll. Arg.) Makhija & Patw. , Tropical Bryology 10: 213 (1995); Chapsa punicea (Müll. Arg.) Cáceres & Lücking, Libri Botanici 22: 54 (2007).

Thelotrema rhododiscum Homchant. & Coppins , The Lichenologist 34: 135 (2002).

Remarks: ―This species was considered a synonym of Cruentotrema cruentatum , but differs in the smaller and relatively narrower ascospores and the bright red to pinkish disc of the ascomata. Thelotrema rhododiscum is a synonym. The species appears to be the eastern paleotropical vicariant of C. cruentatum .

Figures

FIGURE 3. A–D. Cruentotrema puniceum (A, D, Australia, Kalb s.n.; B, holotype of Thelotrema rhododiscum, C, Thailand, Kalb 33412; thallus with ascomata, section through ascoma showing excipulum, and ascospores). E–F. C. cruentatum (Brazil, Cáceres 1070; thallus with ascomata and ascospores). Scale = 1 mm, in C = 100 μm, D, F = 10 μm.