Two new European species from the heterogeneous Caloplaca holocarpa group (Teloschistaceae)

Abstract

The Caloplaca holocarpa group contains members of the family Teloschistaceae with a strongly reduced thallus and conspicuous yellow, orange or red apothecia. In the absence of well-defined thallus characters, taxa of this group must be identified mainly by apothecial characters and are as a result often difficult to separate. The species of this group have been shown not to form a monophyletic entity, with representatives of other Teloschistaceae with more complex thalli intermixed among them. Caloplaca skii and C. syvashica are recognized here as two homogeneous clades with Caloplaca holocarpa-like phenotypes. Caloplaca skii, which is widespread in southern Europe, resembles C. cerinelloides but is distinguished by its smaller and narrower ascospores and by growing predominantly on xerophilous shrubs. Caloplaca syvashica is restricted to shrubs in salt marshes in the northern Black Sea region. It is similar to the British Caloplaca suaedae and Australian C. yarraensis, but differs from both, mainly in ascospore characters. Caloplaca yarraensis is closely related to the new C. syvashica but arguments against their conspecificity are emphasised. A key for epiphytic C. holocarpa-like Teloschistaceae from Europe is provided.

A new taxonomy of the family Teloschistaceae

“…Basionym: Caloplaca skii Khodos., Vondrák & Šoun in Vondrák et al (2012a, p. 83). Type: Russia, Black Sea coast, Taman Peninsula, sand dunes east of Peresip, on stems of Artemisia , 19 May 2007, Vondrák and Šoun (CBFS JV7017‐holotype; LD‐isotype!…”

“…Distribution: The genus is so far mainly known from the United Kingdom, but H. suaedae has also been reported from Greece, Morocco and Turkey (Vondrák et al 2012a).…”

“…Taxonomy: This is a monophyletic group of crustose species that all occur close to the sea, either on rocks or on plant debris. Most of the species are known from the British Isles, but one undescribed species is known from the Canary Islands, and according to Vondrák et al (2012a) H. suaedae also occurs in Turkey, Greece and Morocco. However, all clades surrounding Haloplaca in the analyses are composed of species from the Southern Hemisphere, suggesting a southern origin of the genus.…”

Update of “Biodiversity of the Hypersaline Urmia Lake National Park (NW Iran)”

“…Table 3. List of lichen from the National Park of Urmia Lake (localities: Rahmanloo and Saraydeh) [8]. …”

The lichens and lichenicolous fungi of National Nature Park «Biloberezhzhya Svyatoslavа»

“…Крім того, на півострові виявлено популяції двох видів, Seirophora lacunosa та Xanthoparmelia camtschadalis, що занесені до Червоної книги України і за якими ведуться моніторингові дослідження [KHODOSOVTSEV, 1995[KHODOSOVTSEV, , 1999NADEІYNA et al, 2010]. Зразки зібрані Я. Вондраком з околиць с. Покровка, увійшли як паратипи нового для науки виду Caloplaca syvashica [VONDRÁK et al, 2012]. Інформація щодо деяких ліхенофільних грибів, зібраних нами на цій території, була апробована на всеукраїнській конференції «Актуальні проблеми ботаніки та екології» [DARMOSTUK, 2016A].…”