ITALIC 8.0

Rinodina terrestris Tomin

Prirod. sel'skoe chozjajst. zasuch.-pustyn S.S.S.R., 3: 59, 1928

Synonyms: Kudratovia terrestris (Tomin) S.Y. Kondr., Lőkös & Hur; Rinodina mucronatula H. Magn.

Distribution:

Description: Thallus crustose, thinly episubstratic, pale grey to pale brownish grey, sometimes poorly evident, without a distinct prothallus. Apothecia lecanorine, 0.3-0.7(-1) mm across, numerous and often crowded, adnate, with a flat to slightly convex, dark brown to black, sometimes initially white-pruinose disc and a smooth, finally sometimes excluded thalline margin. Epithecium brown; hymenium colourless, 80-120 μm high; hypothecium colourless, up to 50 high high. Asci 8-spored, narrowly clavate to 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, pigmented, ellipsoid to finally narrowly ellipsoid, 21-30 x 8-12 μm, Physcia- or Physconia-type, slightly pointed and paler at both ends, lacking a torus, with type A or B development. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances or with variable amounts of zeorine.

Note: on terricolous mosses and plant debris in open grasslands, over more or less calciferous or otherwise basic to neutral substrata, in sunny, dry, non-eutrophicated situations. Widespread in the Alps, but overlooked, or confused with other species in Italy, where it should be looked for, especially in the dry-warm Alpine valleys.

Growth form: Crustose

Substrata: soil, terricolous mosses, and plant debris

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Subcontinental: restricted to areas with a dry-subcontinental climate (e.g. dry Alpine valleys, parts of Mediterranean Italy)

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

Index Fungorum GBIF

Curtis Randall Björk – CC BY-SA 4.0

British Columbia, Caribou Mountains, near Dunn Peak Date: 2011-09-08 Over mosses on rock in subalpine meadow, calcareous soil derived from phyllite