Sarcogyne nimisii K.Knudsen, Kocourk. & Hodková

Herzogia, 36, 1: 65, 2023
Synonyms:
Distribution: N - VG (Knudsen & al. 2023).
Description: Thallus crustose, endosubstratic, poorly evident. Apothecia lecideine, round, dispersed, broadly attached, not replicating by division, 0.2-0.8 mm across, with a brown-red, flat to convex, pruinose disc and a thin, black but mostly pruinose, raised, undulate proper margin. Proper exciple (60-)80-120 μm wide, inspersed with crystals, of radiating hyphae with swollen brown tips, reddish brown in outer part, pale brown to colourless within, the darker rim not clearly delimited from the paler medullary part; epithecium brown; hymenium colourless, 120-130(-140) µm high, the hymenial gel hemiamyloid; paraphyses c. 1 µm thick, coherent, simple to sparingly branched, regularly septate, not capitate; subhymenium indistinct, c. 20 µm high, hemiamyloid; hypothecium merged with medulla, obscure with crystals, the hyphae 1-2 µm thick. Asci >100-spored, cylindrical-clavate, strongly thickened at apex, the apical dome K/I-, the outer coat K/I+ blue, 90-100 x 10-17 µm. Ascospores 1-celled, hyaline, broadly ellipsoid and 4 x 3 µm or ellipsoid and 3-4 x c. 2 µm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances
Note: a recently described calcicolous species, hitherto known only from the Trieste coast, which surprisingly clusters together with a group of American species (see Knudsen & al. 2023).
Growth form: Crustose endolithic
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: absent
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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Predictive model
Herbarium samples


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (35083)
2002/02/22



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (35083)
2002/02/22


Kerry Knudsen
TSB 35083