Micarea hedlundii Coppins

Guzow-Krzemińska, Beata, Flakus, Adam, Kosecka, Magdalena, Jabłońska, Agnieszka, Rodriguez-Flakus, Pamela & Kukwa, Martin, 2019, New species and records of lichens from Bolivia, Phytotaxa 397 (4), pp. 257-279 : 269

* Micarea hedlundii Coppins ( Fig. 6 )

Type:— NORWAY. Oppland, Ringebu, 5.5 km ENE of Ringebu, along Soraa, between Nyhamnsbekken and Ulveslabekken. Lat/long: 61:33 N 10:13 E. Alt.: 400 m, decorticated stump. 25 Aug. 1979, L. Tibell 8657 (holotype UPS L-05554!).

This species has been described from Norway and is currently known from several localities in Europe (e.g., Austria, Germany, Norway, Lithuania, Poland, Sweden, Ukraine). It has also been reported from Africa ( Rwanda), North America ( Canada, USA) and South America ( Chile) ( Coppins 1983; Gowan & Brodo 1988; Motiejűnaitë 2005; Czarnota 2007).

The phylogenetic tree which includes sequences of Micarea hedlundii shows that the Bolivian specimen is placed with the European population in a highly supported monophyletic clade ( BS 100%, PP 0.1, Fig. 7 ). Although it is not an aim of this study to resolve the position of the Micarea species within the genus, our molecular tree is very similar in topology to those proposed by Czarnota & Guzow-Krzemińska (2010) and Guzow-Krzemińska et al. (2016). Therefore, the occurrence of this species in the Southern Hemisphere is confirmed based on molecular evidence.

Material examined. BOLIVIA. Dept. La Paz: Prov. Franz Tamayo, Parque Nacional y Área Natural de Manejo Integrado Madidi, Chuñuna above Keara, 14º41’11”S, 69º05’30”W, 4053 m, Polylepis pepei forest, on lignum, 19 Nov. 2014, A. Flakus 25384 & J. Quisbert ( KRAM, LPB).

* Myriotrema glauculum (Nyl.) Hale

This neotropical species is known only from Brazil, Cuba, Panama, Trinidad and Tobago ( Hale 1978; Lücking 2015).

Material examined. BOLIVIA. Dept. La Paz: Prov. Larecaja, near Guanay, Aguada, 15°29’50”S, 67°55’50”W, elev. 1010 m, remnants of humid, natural forest near river, with large trees, corticolous, 21 Nov. 2016, M. Kukwa 19095 ( LPB, UGDA).

Figures

FIGURE 6. Habit of Micarea hedlundii showing thallus composed of goniocysts and ascomata or conidiomata. A–B, greyish black emarginate apothecia (Bolivia, A. Flakus 25384); C–D, stalked, moderately white tomentose pycnidia (Bolivia, A. Flakus 25384); E–F stalked, strongly white tomentose pycnidia (Norway, holotype). Scales: A, C, E—250 μm, B, D, F—500 μm.

FIGURE 7. Maximum likelihood phylogenetic tree of Micarea based on mrSSU data set. High nodal support values are indicated by bold branches, including ML bootstrap values ≥ 75% and MCMC posterior probability ≥ 0.9. Micarea hedlundii is in bold and highlighted. GenBank, accession numbers precede the species names. Byssolecania variabilis, Fellhanera viridisorediata and Calopadia foliicola were used as outgroup.