Flavoplaca

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

Flavoplaca

Only 2 species recorded in the region, both with crustose thallus. Flavoplaca flavocitrina is a broadly distributed species forming areoles or tiny squamules producing soredia; apothecia are rarely present in the material from the region. Flavoplaca oasis has abundant apothecia, but vegetative diaspores are absent. Literature: Arup (2006), Arup et al. (2013), Orange (2018), Vondrák et al. (2009).

Flavoplaca flavocitrina : 7 localities at altitudes 250–1440 m, in humid and arid non-alpine habitats. Substrate: calcareous and base-rich siliceous rocks. Additional information in Vondrák et al. (2016a).

Flavoplaca oasis : 18 localities at altitudes 250–1750 m, in humid and arid non-alpine habitats, rarely in humid alpine sites. Substrate: limestone, rarely base-rich siliceous rocks. The species has variable thallus morphology in the region. Typical morphotypes with strongly reduced thallus were found together with morphotypes with tiny yellow lobes ( Fig. 5C ) resembling the Mediterranean-European F. polycarpa .

Figures

FIGURE 5. Athallia (A), Caloplaca sensu stricto (B), Flavoplaca (C), Squamulea (D) and Xanthomendoza (E,F).A, Athallia sp. (Vondrák 18073); B, holotype of Caloplaca fluviatilis; C, Flavoplaca oasis (Vondrák 18222) with indistinct marginal thallus lobes (character typical for Mediterranean-European F.polycarpa); D, Squamulea sp. (Vondrák 18682) resembling small morphotypes of Squamulea irrubescens; E, Xanthomendoza trachyphylla, a common morphotype (Vondrák 18044); F, X. trachyphylla with pruinose thallus on limestone (Vondrák 18028). All bars, 1 mm.