ITALIC 7.0

Rinodina diplinthia (Nyl.) Zahlbr.

in Engler & Prantl, Nat. Pflanzenfam., Teil I, 1: 233, 1908. Basionym: Lecanora diplinthia Nyl. - Acta Soc. Sci. Fenn., 7, 2: 444, 1863

Synonyms:

Distribution:

Description: Thallus crustose to subsquamulose, episubstratic, ochraceous to brown. Apothecia lecanorine, adnate, 0.6-1.2 mm across, with a dark brown, flat to slightly convex disc, and an entire, persistent thalline margin. Epithecium orange-brown; hymenium colourless, 100-130 µm high; paraphyses richly branched and anastomosing in upper part, the apical cells up to 5 µm wide; hypothecium pale yellow-brown, up to 120 µm high. 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 at first 1-3-septate, then submuriform and 7-11-celled at maturity, brown, ellipsoid, with irregularly rounded locules, 22-38 x 11-19 µm, frequently with droplet-like inclusions surrounding the lumina when old, the ontogeny of type A (apical wall thickening after septum formation). Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a Mediterranean-Atlantic species described from Colombia, known from the Iberian Peninsula, where it grows in humid, dense forests, mostly on old trunks, sometimes overgrowing mosses. The species was considered as a synonym of R. intermedia by Mayrhofer & al. (2001), but it is maintained here as a distinct species because of the very different ecology. To be looked for in the most humid forests of Mediterranean Italy, especially in Sardinia.

Growth form: Crustose

Substrata: bark

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)

pH of the substrata:

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Solar irradiation:

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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