Montanelia sorediata (Ach.) Divakar, A. Crespo, Wedin & Essl.

Szczepanska, Katarzyna, Guzow-Krzeminska, Beata & Urbaniak, Jacek, 2021, Infraspecific variation of some brown Parmeliae (in Poland) - a comparison of ITS rDNA and non-molecular characters, MycoKeys 85, pp. 127-160 : 127

Montanelia sorediata (Ach.) Divakar, A. Crespo, Wedin & Essl.

Parmelia stygia sorediata American Journal of Botany 99:2023 (2012) ≡ Parmelia stygia var. sorediata Ach., Lichenographia Universalis 471 (1810) ≡ Melanelia sorediosa (Almb) Essl., Mycotaxon 7:47 (1978) ≡ Melanelia sorediata (Ach.) Goward & Ahti, Mycotaxon 28:94 (1987).

Description.

M. sorediata is a foliose species. Its lobes are flat to slightly convex, 0.2-0.6 mm broad, distinctly rugged and pitted at the ends ( Szczepańska et al. 2017). The upper surface is smooth, dull, olive brown to dark brown. Characteristic soralia arise on the ends of the main lobes or on the smaller, erect side lobes. They are usually distinctly convex and capitate with granular to isidioid, dark soredia. Pseudocyphellae and pycnidia are absent. Apothecia are not seen in the examined material.

Chemistry.

Perlatolic and stenosporic acids.

Distribution.

M. sorediata is a probably circumpolar species that prefers siliceous substrates, usually in open and well-lit places. The species is mentioned as occurring in North America and Europe ( Esslinger 1977; Otte et al. 2005). Available molecular data concern only a few samples collected in North America (Canada, USA), North Europe (Norway, Sweden) and Asia (India).

Haplotypes differentiation.

Six different haplotypes were identified in M. sorediata (n = 16), of which two Polish specimens, collected in the Karpaty Mountains, have two different haplotypes that differ in a single position (Fig. 7 , Table 2 ). Interestingly, sample 101 has the same haplotype as the specimen collected in Alaska (KF257980), while sample 100 has the same haplotype as four Scandinavian specimens collected in Norway and Sweden. Another of the most common haplotypes is represented by specimens collected in Japan, Russia and the USA. Therefore, no specific geographic pattern was observed in the dataset.

Figures

Figure 7. Haplotype network, based on ITS rDNA sequences from specimens of Montanelia sorediata. Newly-generated sequences are described with isolate numbers preceding the species names. Sequences downloaded from GenBank are described with their accession numbers. Mutational changes are presented as numbers in brackets near lines between haplotypes.