Calogaya

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

Calogaya

Ten species and one infraspecific taxon recorded in the region. Thallus complexity ranges from distinctly lobate large thalli ( C. biatorina ) to strongly reduced inconspicuous thalli (e.g. C. ferrugineoides ). Most species produce apothecia and lack vegetative diaspores, but two species ( C. bryochrysion and C. decipiens ) are sorediate and only occasionally produce apothecia. The genus is species rich in continental Central Asia, where it has diversified into numerous epilithic and epiphytic species ( Vondrák et al. 2018). Literature: Arup et al. (2013), Gaya (2009; focused on epilithic species), Steiner & Poelt (1982; only three epiphytic species), Vondrák et al. (2018).

Calogaya arnoldii : 7 localities at altitudes 420–1870 m. In dry microhabitats below rocky overhangs in various ecological classes, but not recorded in arid alpine habitats. Substrate: various types of calcareous and siliceous rocks. Calogaya biatorina : 12 localities in a broad altitude range, 490–2900 m. In all ecological classes, but most records in arid alpine habitats. Substrate: various types of calcareous and siliceous rocks.

Calogaya biatorina subsp. asiatica : 6 localities at altitudes 1220–2900 m. In arid, usually alpine habitats. Substrate: limestone. It is morphologically distinct from C. biatorina subsp. biatorina by thinner, densely arranged (not imbricate) marginal lobes and round inner areoles surrounded by white pruinose rims ( Vondrák et al. 2018).

Calogaya bryochrysion : 3 localities at altitudes 2170–2350 m. In arid and humid alpine habitats. Substrate: various types of rocks, bryophytes, plant debris, stems of alpine shrubs and bark of Populus (i.e. a broad range of substrates). Further information in Vondrák et al. (2016a).

Calogaya decipiens : 5 localities in a broad altitude range, 660–2900 m, in various ecological classes, but not recorded in humid alpine habitats. Substrate: calcareous and siliceous rocks.

Calogaya ferrugineoides : 5 localities in a broad altitude range, 230–2500 m, in arid alpine and non-alpine classes. Substrate: branches of Atriplex cana , Juniperus sabina , Lonicera sp. and other shrubs in steppe and desert habitats, also on bark of Populus laurifolia .

Calogaya pusilla : 3 localities at altitudes 220–470 m, in arid non-alpine habitats. Substrate: limestone.

Calogaya saxicola s.lat.: 4 localities in a broad altitude range, 220–2180 m, in various ecological classes. Substrate: limestone or siliceous rocks, usually below overhangs. The taxonomy of C. saxicola is not resolved and more than one phylogenetic species are probably involved. It has a similar morphology to C. arnoldii (short or fully reduced thallus lobes), but C. arnoldii is distinct in three-loci sequence data ( Vondrák et al. 2018).

Calogaya schistidii : 3 localities at high altitudes, 1530–2900 m, in arid alpine habitats. Substrate: bryophytes overgrowing limestone.

Calogaya xanthoriella : two records (specimens Frolov 1598 and Davydov 10857) at altitude 2350 m on twigs of Lonicera in arid alpine steppe and at altitude 1280 m in desert steppe on wooden stems of Krascheninnikovia ceratoides . It was described from China and Turkey and is distinguished from similar C. ferrugineoides or C. polycarpoides by a three-loci phylogenetic analysis ( Vondrák et al. 2018).

Calogaya zoroasteriorum : three specimens recorded in single locality (Frolov 1597, Vondrák 10308, 18084) at altitude 2350 m on twigs of Lonicera in arid alpine steppe. It was described from Iran as Caloplaca zoroasteriorum ( Kondratyuk et al. 2013a) , but has recently been transfered to Calogaya ( Vondrák et al. 2018) . Specimens from Altai form a distinct clade separated from Iranian specimens of C. zoroasteriorum in a three-loci DNA analysis, but both sets of specimens are morphologically similar in having whitish and sorediate thallus squamules (usually without anthraquinones) with usual absence of apothecia.