Swinscowia endolithea (Cl. Roux & Bricaud) S.H. Jiang, Lücking & Sérus.

in Hongsanan & al., Fungal Divers.: 10.1007/s13225-020-00462-6, 138, 2020. Basionym: Strigula endolithea Cl. Roux & Bricaud - in Roux & Sérusiaux, Bibl. Lichenol., 90: 88, 2004.
Synonyms:
Distribution: N - VG (Tretiach & Rinino 2006, Isocrono & al. 2026), Ven (Isocrono & al. 2026).
Description: Thallus crustose, endosubstratic, penetrating for c. 4 mm into the calcareous rock, greenish grey turning whitish grey in the herbarium, continuous, often delimited from surrounding thalli by a raised line. Perithecia 0.25-0.3 mm across, obpyriform to subglobulose, entirely immersed, colourless to pale pink, without involucrellum, opening with a minute, pale brown to bluish ostiole; exciple colourless; hymenium colourless, I-; paraphysoids mostly simple, thread-like, c. 1 μm thick, longer than the asci, slightly branched and anastomosing only when adjacent to exciple. Asci 8-spored, cylindrical-clavate, bitunicate-fissitunicate, shortly stalked at base, the apex thickened into a tholus, with a narrow ocular chamber, I-, 70-80 x 12-15 μm. Ascospores (5-)7-septate, hyaline, constricted at septa, sometimes with a single longitudinal septum, 21-26 x 5.5-7 μm, the young ones sometimes with a gelatinous, 3(-4) μm thick perispore. Macropycnidia 0.12-0.16 mm across, subglobose, without involucrellum, entirely immersed in the rock, colourless to pale pink except near the ostiole, which is brown to (rarely) black; macroconidia subapically inserted on the conidiogenous cell, (3-)4-7-septate, not or only slightly constricted at septa, subcylindrical to subfusiform, (15.5-)19.5-27(-33.5) x 3-6 μm, rounded at ends, with a short gelatinous appendage. Microconidia colourless, simple, ellipsoid to ovoid, (2-)3-4 x (1-)1.5-2 μm. Photobiont trentepohlioid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: a recently-described species, hitherto known from southern France, the Park of the Miramare Castle near Trieste, on shaded calcareous rocks near the coast, and from the Berici Hills in Veneto.
Growth form: Crustose
Substrata: rocks
Photobiont: Trentepohlia
Reproductive strategy: mainly sexual, or asexual by conidia and thalloconidia
In underhangs rarely wetted by rain

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: absent
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: very rare

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
INDEX FUNGORUM GBIF


P.L. Nimis CC BY-SA 04
TSB 36932


Mauro Tretiach - CC BY-SA 4.0
Trieste, Miramare Castle, Carlotta's trail, Italy


Mauro Tretiach - CC BY-SA 4.0
Trieste, Miramare Castle, Carlotta's trail, Italy


Mauro Tretiach - CC BY-SA 4.0
Trieste, Miramare Castle, Carlotta's trail, Italy


Mauro Tretiach - CC BY-SA 4.0
Trieste, Miramare Castle, Carlotta's trail, Italy


Mauro Tretiach - CC BY-SA 4.0
Trieste, Miramare Castle, Carlotta's trail, Italy


Mauro Tretiach - CC BY-SA 4.0
Trieste, Miramare Castle, Carlotta's trail, Italy


Mauro Tretiach - CC BY-SA 4.0
Trieste, Miramare Castle, Carlotta's trail, Italy



P.L. Nimis CC BY-SA 04
TSB 36932


Mauro Tretiach - CC BY-SA 4.0
Trieste, Miramare Castle, Carlotta's trail, Italy



P.L. Nimis CC BY-SA 04
TSB 36932