Chapsa thallotrema Lücking & N. Salazar

Guzow-Krzemińska, Beata, Flakus, Adam, Kosecka, Magdalena, Jabłońska, Agnieszka, Rodriguez-Flakus, Pamela & Kukwa, Martin, 2019, New species and records of lichens from Bolivia, Phytotaxa 397 (4), pp. 257-279 : 260

* Chapsa thallotrema Lücking & N. Salazar

So far reported from Brazil, Costa Rica, Panama and Venezuela ( Lumbsch et al. 2011; Rivas Plata et al. 2013; Sipman et al. 2012; Lima et al. 2016).

Our material of Ch. thallotrema is sterile with well-delimited soralia. The mrSSU and nucLSU sequences were obtained from our specimen ( Tab. 1) and show 98 and 99% of identity respectively to the sequences of Ch. thallotrema deposited in GenBank (mrSSU: accession no JX421013; nucLSU: accession nos JX465319, JX467681, JX465306).

Chapsa thallotrema is morphologically and chemically very similar to the esorediate Ch. sublilacina (Ellis & Everh.) M. E. S. Cáceres & Lücking. It differs only in the production of soredia and according to Sipman et al. (2012) the latter can represent a non-sorediate counterpart of Ch. thallotrema . Newly generated nucLSU sequence of Ch. thallotrema is very similar (98% of identity) to that of Ch. sublilacina deposited in GenBank (accession no HQ639600) which suggests they may represent the same species, but more variable molecular markers need to be studied.

Material examined. BOLIVIA. Dept. La Paz: Prov. Abel Iturralde, between Santa Rosa de Maravillas and Tumupasa, 13°58’43”S, 67°58’14”W, elev. 300 m, natural Preandean Amazon forest, corticolous, 25 May 2017, M. Kukwa 19753 ( LPB, UGDA).