ITALIC 8.0

Allopyrenis sanguinea (Anzi) M. Schultz & M. Prieto

in Prieto & al., Studies in Mycology, 109: 634, 2024.. Basionym: Pyrenopsis sanguinea Anzi - Atti Soc. Ital. Sc. Nat., 9: 241, 1866.

Synonyms: Psorotichia sanguinea (Anzi) Jatta; Pyrenopsis sanguinea Anzi

Distribution: N - TAA (UPS-L-166875, Nascimbene & al. 2022), Lomb (Schultz 2014).

Description: Thallus crustose, slightly gelatinous when wet, homoiomerous and paraplectenchymatous throughout, reddish to reddish black when dry, red-brown when wet, granulose or granulose-areolate, the areoles more or less rounded in outline, to 1 mm wide, more or less convex, the upper surface distinctly granulose. Apothecia lecanorine, at first semi-immersed, then sessile, appearing perithecioid, 0.25-0.4 mm across, with an initially pore-like, but soon open and flat, dark red-brown disc, and a distinct, persistent, granulose thalline margin, the ascogones formed beneath pycnidia (pycnoascocarps). Proper exciple colourless, very thin and usually poorly evident; epithecium faintly yellowish brown; hymenium colourless, 70-75 µm high, I+ blue; paraphyses simple or sparingly branched in upper part; subhymenium colourless. Asci 8-spored, cylindrical-clavate, unitunicate-rostrate, with a distinct K/I+ blue apical dome and a distinct outer gelatinous cap. Ascospores 1-celled, hyaline, broadly ellipsoid, (5-)6-8(-11) x 5-6 µm. Pycnidia semi-immersed in thalline warts, pyriform, with simple conidiophores. Conidia ellipsoid, c. 3 x 1-1.5 µm, produced terminally. Photobiont cyanobacterial, chroococcoid, the cells single, surrounded by reddish-violet, layered gelatinous sheaths, 10-20 µm wide (incl. sheaths). Spot tests: all negative. Chemistry: without lichen substances.

Note: on sunny surfaces of basic siliceous rocks along seepage tracks. This taxon was synonymised by Hafellner & Türk (2001) with Cryptothele rhodosticta, a species whose occurrence in the Alps is dubious (see Jørgensen 2007). According to Schultz (2014), on the contrary, it is a well-distinct species.

Growth form: Crustose

Substrata: rocks

Photobiont: cyanobacteria, coccaceous (e.g. Gloeocapsa)

Reproductive strategy: mainly sexual

On otherwise dry surfaces with short periods of water seepage after rain

Poorly known taxon in need of further study

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

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:

1

2

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5

(info)

Solar irradiation:

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5

(info)

Aridity:

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5

(info)

Eutrophication:

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5

(info)

Poleotolerance:

0

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3

(info)

Altitudinal distribution:

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6

(info)

Predictive model