Calicium pinastri Tibell

Mycotaxon, 70: 436, 1999.
Synonyms:
Distribution: N - TAA (Nascimbene & al. 2014, Nascimbene 2014).
Description: Thallus crustose, poorly evident, endosubstratic or thinly episubstratic, greenish grey. Apothecia short-stalked, pin-like, epruinose. Stalk shining black, 0.3-0.4 mm high, of sclerotized, dark, anticlinally arranged, irregularly interwoven hyphae. Capitulum obconical to lenticular, with a well-developed, cup-shaped exciple of anticlinally (in outer part) or periclinally (in inner part) arranged hyphae; mazaedium well developed, black; hypothecium dark brown, with a flat to slightly convex upper surface. Asci cylindrical, formed singly, dissolving early, with uniseriately arranged ascospores. Ascospores 1-septate, dark brown, broadly ellipsoid, 9.5-13.5 x 5-6.5 µm, with a thick, first smooth, then irregularly cracked wall. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-; ascomata I- in all parts. Chemistry: thallus with low amounts of several unidentified compounds.
Note: a species with a thin grey thallus, short-stalked, minute, epruinose apothecia, cylindrical asci, and ascospores with irregular cracks, found on the bark of conifers (most often Pinus sylvestris); recently-described and still with a few records in the Alps, but probably more widespread.
Growth form: Crustose
Substrata: bark
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: extremely rare
Oromediterranean belt: absent
Montane belt: very rare
Submediterranean belt: absent
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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Helge Gundersen - Source: http://nhm2.uio.no/lav/web/index.html - CC BY-NC