Cladonia zebrathallina Aptroot & Spielmann, 2021
publication ID |
https://doi.org/ 10.5252/cryptogamie-mycologie2021v42a8 |
DOI |
https://doi.org/10.5281/zenodo.12214690 |
persistent identifier |
https://treatment.plazi.org/id/03F987C6-FFDD-BB59-FF1F-F943EA80FBA8 |
treatment provided by |
Felipe |
scientific name |
Cladonia zebrathallina Aptroot & Spielmann |
status |
sp. nov. |
Cladonia zebrathallina Aptroot & Spielmann View in CoL , sp. nov.
( Fig. 2 View FIG )
MYCOBANK. — MB 83947.
DIAGNOSIS. — Terricolous Cladonia with squamulose thallus containing fumarprotocetraric acid and strepsilin, lobate, with black apothecia and black, globose pycnidia with filiform, curved to sigmoid conidia of 20-35 × 0.5 µm.
TYPE. — Brazil. Mato Grosso do Sul, Aquidauana, Vila Piraputanga, alt. 250 m, 20°29’S, 55°29’W, on exposed sand, 26.XI.2019, A.Aptroot 80479 (holo-, CGMS; iso-, ABL).
ADDITIONAL MATERIAL STUDIED. — Brazil. Mato Grosso do Sul: Aquidauana, Vila Piraputanga, alt. 250 m, 20°29’S, 55°29’W, on exposed sand, 26.XI.2019, A.Aptroot 80508; same locality, 26.IX.2014, A.A.Spielmann s.n. (para-, CGMS).
CHEMISTRY. — Thallus UV-, C+ blue green, P+ red, K-. TLC: fumarprotocetraric acid and strepsilin.
ETYMOLOGY. — Named after the surface pattern that reminds somewhat of a zebra, and the thallus.
DESCRIPTION
Thallus squamulose, greenish grey, consisting of short, c. 0.7-1.4 mm diam., mostly ascending squamules, corticate. Squamules flat to convex, crenate, strongly overlapping in several layers in a 2-3 mm thick crust, surface with a dense network of paler greyish pseudocyphellae, the main ones of them aligned in the length direction of the lobes. Lower surface black. Thallus squamules c. 100-200 µm thick, upper cortex hyaline, 1-2 cells thick, c. 5-10 µm, paraplectenchymatous. Apothecia common, black, lobate, convex, flat to 0.8-1.4 mm diam., sessile and not higher than the lobes, without differentiated margin. Epihymenium brown, c. 10 µm thick. Hymenium c. 100 µm high. Ascospores not observed. Pycnidia common, marginal, globose, black, 0.1- 0.2 mm. Pycnidial wall c. 35 µm thick, carbonized in the upper half. Conidia hyaline, filiform, curved to sigmoid, 20-35 × 0.5 µm.
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