ITALIC 8.0

Rinodina mniaroeiza (Nyl.) Arnold

Flora, 53: 469, 1870. Basionym: Lecanora mniaroeiza Nyl. - Flora, 53: 33, 1870.

Synonyms: Diploicia muscorum sensu A. Massal.; Rinodina mniaraea f. biatorina (Nyl.) Arnold; Rinodina mniaraea var. mniaraeiza (Nyl.) H. Magn.; Rinodina mniaraeiza (Nyl.) Arnold

Distribution: N - TAA (Bilovitz & al. 2014b, Nascimbene & al. 2022), Lomb.

Description: Thallus crustose, episubstratic, thin, continuous, effuse, granular-verrucose, whitish to pale grey, rarely pale brown, without a distinct prothallus. Medulla white, with crystals soluble in K. Apothecia lecanorine, 0.6-0.9 mm across, usually crowded, adnate to sessile, with a dark brown to black-brown, epruinose, flat to convex disc, and a thin, entire, prominent, usually persistent thalline margin. Thalline exciple 35-70 μm wide laterally, indistinctly corticate, overlain by an epinecral layer; epithecium brownish orange; hymenium colourless, 85-150 μm high; hypothecium colourless to brown, 70-250 μm high, inspersed with oil droplets, especially in older apothecia. Asci 8-spored, clavate, the K/I+ blue tholus penetrated by a faintly amyloid apical cushion with parallel or diverging flanks, the wall K/I-, surrounded by a K/I+ blue outer layer, Lecanora-type. Ascospores 1-septate, brown, ellipsoid, 20-32 x 9-15 μm, Physcia-type, with a well-developed torus and smooth walls, and with an ontogeny of type A (apical wall thickening after septum formation). Pycnidia immersed. Conidia bacilliform, 4-5 μm long. Photobiont chlorococcoid. Spot tests: K+ yellow, C-, KC-, P+ yellow, UV-. Chemistry: atranorin, and variable amounts of variolaric acid.

Note: on soil, mosses, plant debris, in tundra-like environments, mainly over calciferous substrata; widespread in the Alps.

Growth form: Crustose

Substrata: soil, terricolous mosses, and plant debris

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: rather rare

Subalpine belt: rare

Oromediterranean belt: absent

Montane belt: absent

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: absent

Humid mediterranean belt: absent

Dry mediterranean belt: absent

pH of the substrata:

1

2

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4

5

(info)

Solar irradiation:

1

2

3

4

5

(info)

Aridity:

1

2

3

4

5

(info)

Eutrophication:

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3

4

5

(info)

Poleotolerance:

0

1

2

3

(info)

Altitudinal distribution:

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6

(info)

Predictive model

Index Fungorum GBIF

Curtis Randall Björk

British Columbia, Skeena Mountains Date: 2014-08-08British Columbia, Skeena Mountains Date: 2014-08-08