ITALIC 8.0

Toniniopsis cretica (Timdal) Timdal

in Kistenich & al., Taxon, 67, 5: 898, 2018. Basionym: Toninia cretica Timdal - Opera Botanica, 110: 59, 1991

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Distribution:

Description: Thallus squamulose to subcrustose, consisting of small, densely proliferating, olivaceous green to medium brown, epruinose, dull, 3-5 mm wide squamules forming a thick, continuous crust or remaining discrete. Upper cortex from almost absent to up to 20 μm thick, sometimes with a thin epinecral layer, lacking crystals; algal layer filling the inner part of the squamules; medulla and lower cortex not differentiated. Apothecia lecideine, black, epruinose, up to 1.8 mm across, flat and indistinctly marginate when young, soon becoming convex and immarginate. Proper exciple medium brown to dark brown throughout or with a somewhat darker rim, K-, N-, lacking crystals; epithecium dark green, K-, N+ violet, lacking crystals; hymenium colourless, 60-70 μm high, I+ blue; paraphyses not conglutinated, simple or sparingly branched and anastomosing in upper part, thin-walled, the apical cell distinctly swollen and covered by a gelatinous pigment cap; hypothecium dark brown, lacking crystals. Asci 8-spored, clavate, surrounded by a gelatinous I+ blue coat, with a well-developed I+ blue tholus, a I+ darker blue tube and a well-developed ocular chamber, Bacidia-type. Ascospores 3-septate, hyaline, bacilliform to acicular, 27-41 x 2-3 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: thallus with terpenoids (green spots in TLC).

Note: known only from Crete, in fissures of calciferous rocks between 600 and 1200 m, this species should be looked for also in Italy.

Growth form: Squamulose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

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Altitudinal distribution:

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Predictive model

Index Fungorum GBIF

Einar Timdal - Source: http://nhm2.uio.no/lav/web/index.html - CC BY-NC