Polyblastia cinerea (A. Massal.) Jatta
Syll. Lich. Ital.: 567, 1900. Basionym: Amphoridium cinereum A. Massal. - Lotos, 6: 80, 1856.
Synonyms: Verrucaria dictyospora Stizenb.; Verrucaria lariana var. cinerea (A. Massal.) Garov.
Distribution: N - Ven (Lazzarin 2000), Lomb.
Description: Thallus crustose, endosubstratic or thinly episubstratic, continuous, blue-grey, farinose, with minute dark dots visible at high magnification, delimited by a black prothalline line. Perithecia black, globose, (0.4-)0.5-0.6 mm across, completely immersed and leaving pits in the rock, projecting only with the convex, flattened apical part. Involucrellum absent; exciple thick, dark throughout; hamathecium of periphyses and periphysoids, interascal filaments absent; hymenial gel hemiamyloid, I+ red (I+ blue at very low concentrations of I), K/I+ blue. Asci 8-spored, clavate, K/I–, fissitunicate, the wall thickened above, with an ocular chamber, dehiscent by extrusion of an endotunica to form a delicate rostrum. Ascospores muriform, hyaline, ellipsoid, 18-32 x 12-16 μm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.Note: on sheltered calcareous rocks near or above treeline; a critical taxon, which deserves further study.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Poorly known taxon in need of further study
Commonnes-rarity: (info)
Alpine belt: very rare
Subalpine belt: very rare
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
Predictive model
© The Trustees of the Natural History Museum, London CC BY-SA 4.0
© The Trustees of the Natural History Museum, London CC BY-SA 4.0
Source: Zschacke, H. (1934) Epigloeaceae, Verrucariaceae und Dermatocarpaceae. In: Dr. L. Rabenhorst‘s Kryptogamen-Flora, Band 9, Abt. 1, Teil 1. Akademische Verlagsgesellschaft, Leipzig, 695 pp. - Public Domain
© The Trustees of the Natural History Museum, London CC BY-SA 4.0
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Poorly known taxon in need of further study
Commonnes-rarity: (info)
Alpine belt: very rare
Subalpine belt: very rare
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
Predictive model
Index Fungorum
GBIF
© The Trustees of the Natural History Museum, London CC BY-SA 4.0
© The Trustees of the Natural History Museum, London CC BY-SA 4.0
Source: Zschacke, H. (1934) Epigloeaceae, Verrucariaceae und Dermatocarpaceae. In: Dr. L. Rabenhorst‘s Kryptogamen-Flora, Band 9, Abt. 1, Teil 1. Akademische Verlagsgesellschaft, Leipzig, 695 pp. - Public Domain
