Amundsenia, Søchting, Garrido-Ben., Arup & Frödén, 2014

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

Amundsenia

One epilithic species recorded in the region.It has reduced yellow thallus surrounding small yellow apothecia; vegetative diaspores are absent; non-chlorinated anthraquinones are present in thallus and apothecia. Literature: Søchting et al. (2014).

Amundsenia approximata : single record from altitude 2000 m (specimen Vondrák 18142) in humid alpine site in Altai. Substrate: siliceous rock. Identity of the specimen was confirmed by the ITS sequence. Few records are known outside Arctic and Scandinavia ( Nimis et al. 2018; Swiss Alps). Ascospores in our specimen are (9‒) 12.5 (‒16) × (4‒) 5 (‒7) μm, which is distinctly larger than reported by Hansen et al. (1987) [8‒11×3.5‒4.5 μm] and Søchting et al. (2014) [11±1.5×4±1.5 μm], but other characters (including thin ascospore septa), ecology and ITS barcode support its identification as A. approximata .