Leptorhaphis parameca (A. Massal.) Körb.

Parerga Lichenol.: 368, 1865. Basionym: Sagedia parameca A. Massal. - Symmicta Lich.: 97, 1855.
Synonyms: Leptorhaphis xylographoides Norman; Spermatodium paramecum (A. Massal.) Trevis.; Verrucaria parameca (A. Massal.) Stizenb.
Distribution: N - Ven (Lazzarin 2000b), TAA (Nascimbene & al. 2007b).
Description: Thallus inapparent, not lichenized, consisting of dark brown to greenish black hyphae. Perithecia black, shiny, 0.3-0.4 mm across, ellipsoid, at first immersed in the substratum, then hemispherical to flattened and c. 0.1 mm high, the central ostiole sometimes located in a small depression. Involucrellum greenish black, c. 15-18 μm thick, extending beyond the perithecium in a basal fringe, composed of pieces of bark intermixed with greenish-black hyphae; exciple thin, poorly evident, pale throughout; pseudoparaphyses 2-2.5 μm thick; hymenial gel I+ blue. Asci 8-spored, cylindrical-clavate, bi- and fissitunicate, with a broad, truncate apical beak. Ascospores 1-septate, hyaline, narrowly fusiform, arcuate or sigmoid, 30-46 x 2-4 μm. Photobiont absent. Spot tests: K-, C- KC-, P-. Chemistry: without lichen substances.
Note: mostly found on Prunus.
Growth form: Fungus
Substrata: bark
Reproductive strategy: mainly sexual
Pioneer species

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: absent
Submediterranean belt: 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

Keissler K. von 1938. Pyrenulaceae, Mycoporaceae, Coniocarpineae. In: Rabenhorst G L: Kryptogamen-Flora von Deutschland, Österreich und der Schweiz. 2nd, IX, Die Flechten, Abt. 1, 2. Gebr. Borntraeger, Leipzig, pp. 1-846.


Source: Keissler K. von 1938. Pyrenulaceae, Mycoporaceae, Coniocarpineae. In: Rabenhorst G L: Kryptogamen-Flora von Deutschland, Österreich und der Schweiz. 2nd, IX, Die Flechten, Abt. 1, 2. Gebr. Borntraeger, Leipzig, pp. 1-846.