Pachypeltis

Vondrák, Jan, Frolov, Ivan, Davydov, Evgeny A., Yakovchenko, Lidia, Malíček, Jiří, Svoboda, Stanislav & Kubásek, Jiří, 2019, The lichen family Teloschistaceae in the Altai-Sayan region (Central Asia), Phytotaxa 396 (1), pp. 448-450 : 448-450

Pachypeltis ( Figs 7B–F , 8 )

4 species recorded in the region. All are crustose, without vegetative diaspores and with apothecia (but apothecia are rare in P. phoenicopta ). All species have spatially reduced but usually thick areolate or squamulose thallus which is mostly lichenicolous on epilithic crustose lichens. Most species thrive in dry alpine habitats. Important diagnostic character is the amyloid (I+ blue) medulla and parts of cortex. Literature: Arup et al. (2013).

Figures

FIGURE 7. ‘Caloplaca’ anularis group (A) and Pachypeltis (B–E). A, ‘Caloplaca’ cf. bohlinii (Vondrák 18251) distinguished from ‘C.’ anularis by orange thallus with more frequent apothecia; B, Pachypeltis insularis (Vondrák 10340); C, Pachypeltis intrudens (Vondrák 18059); D, Pachypeltis cf. pachythallina (large squamules) on Calogaya (Vondrák 12649); E, Pachypeltis phoenicopta (Vondrák 18695) having deep orange pycnidia contrasting with pale yellow colour of thallus; F, detail of areoles of P. phoenicopta (Vondrák 18695) showing patches of white pruina that gives the typical pale yellow colour to the thallus.All bars, 1 mm.

FIGURE 8. Bayesian phylogenetic reconstruction in Pachypeltis using the ITS DNA locus. Sequences from the Altai-Sayan region are in bold.