Endocarpon adsurgens Vain.

Acta Soc. Fauna Fl. Fenn., 49, 2: 73, 1921.
Synonyms:
Distribution: N - TAA (B 60 0196447).
Description: Thallus squamulose, heteromerous, polyphyllous, rather loosely attached, forming compact mats. Squamules 2-7 x 1-2 mm, flattened, smooth, contiguous, ascending, imbricate; upper surface pale ochre-brown to dark brown, matt; lower surface dark, attached by sparse dark rhizines, with dark hyphal strands connecting the individual squamules. Upper cortex pseudoparenchymatous; medulla white. Perithecia half immersed in the squamules, 0.2-0.4 mm across, the upper part black, without involucrellum, the lower part paler. Paraphyses absent, substituted by periphyses; hymenium I+ red, K/I+ blue, hymenial algae globose to broadly ellipsoid. Asci (1-)2-spored, clavate to cylindrical-clavate, bi- and fissitunicate, thin-walled, the wall non-amyloid. Ascospores muriform, long remaining pale, only finally turning brown, ellipsoid, 34-52 x c. 20 µm. Photobiont chlorococcoid (Stichococcus, present in both thallus and hymenium). Spot tests: thallus and medulla K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: this species, described from Finland, is very similar to E. adscendens, differing in the dark rhizines and the paler spores; it is also known from the Austrian Alps; the Italian sample was collected by A. Buschardt in Vinschgau-Val Venosta, above the castle of Goldrain, at c. 800 m.
Growth form: Squamulose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: very rare
Oromediterranean belt: absent
Montane belt: very rare
Submediterranean belt: very rare
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent


pH of the substrata:

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Solar irradiation:

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Aridity:

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Eutrophication:

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Poleotolerance:

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Altitudinal distribution:

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S. Poumarat - Source: http://mycologie.catalogne.free.fr/lichens.htm



Curtis Randall Björk - CC BY-SA 4.0
Idaho, Nez Perce County, Hells Canyon, lower slopes of Craig Mountain, USA, on shale-derived soil in grassland on steep, south-facing slope