Sphinctrina anglica Nyl.

Mém. Soc. Imp. Sc. Nat. Cherbourg, 5: 334, 1858.
Synonyms: Calicium microscopicum (Anzi) Jatta; Phacotiella microcephala (Sm.) Vain.; Sphinctrina microscopica Anzi; Sphinctrina pinicola Körb.
Distribution: N - TAA (Brackel 2016), Lomb (Puntillo & Puntillo 2009, Brackel 2016).
Description: Thallus not evident, not lichenized. Apothecia short-stalked, 0.2-0.45 mm high, black or rarely dark brown. Stalk of periclinally arranged hyphae with strongly gelatinized walls, pale in inner part, dark brown to reddish brown in outermost part, which consists of a layer of isodiametric, sclerotized cells. Capitulum spherical to irregular, 0.1-0.2(-0.3) mm across, shiny black; mazaedium well-developed, black. Exciple well-developed, dull brown, the upper part of more or less isodiametric, periclinally arranged hyphae, the lower part of sclerotized cells; hypothecium colourless to pale brown, 40-50 µm high. Asci 8-spored, cylindrical, formed singly from ascogenous hyphae with croziers, with a single, functional wall layer, K/I-, disintegrating at a rather late stage, with uniseriately arranged spores. Ascospores 1-celled, subglobose, dark brown, 7-10 x 7-9(-10) µm, with a minutely dotted wall. Photobiont absent. Spot tests: all parts of ascomata K-, C-, KC-, P-. Chemistry: without lichen substances.
Note: a parasite on the thalli of Protoparmelia oleaginea; reported from a few localities in the Italian Alps and certainly extremely rare, although quite widespread in the Northern Hemisphere.
Growth form: Lichenicolous fungus
Substrata: bark and lignum
Reproductive strategy: mainly sexual
Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)
paras Protoparmelia oleaginea

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: extremely 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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Predictive model


P.L. Nimis CC BY-SA 04
TSB 11902



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (11902)
2001/11/30