ITALIC 8.0

Waynea cretica Llop

Lichenologist, 38: 521, 2006

Synonyms:

Distribution:

Description: Thallus squamulose, grey to olivaceous green, dull, the squamules flat and adpressed to slightly ascending, contiguous to imbricate, 0.1-0.8 mm wide, esorediate. Upper cortex paraplectenchymatous, 10-20(-25) μm thick, without crystals: medulla white, c. 15 μm thick, of loosely interwoven, rectangular cells, I-; lower cortex absent. Apothecia biatorine, sessile to shortly stalked, pinkish white, greyish or reddish violet, 0.2-0.5 mm across, with a flat to convex disc, and a paler, at first thick, then less evident proper margin. Proper exciple colourless, prosoplectenchymatous; epithecium poorly evident, colourless to olivaceous or violet grey, the pigmented parts K+ violet, N+ purple; hymenium colourless, 40-55 μm high; paraphyses coherent, simple or sparingly furcate in upper part, 1.2-1.6 μm thick at base, the apical cells 2-3(-4) μm wide, surrounded by a thin, pigmented, gelatinous layer; hypothecium colourless to pale straw-coloured, the pigmented parts K+ yellow, subtended by an algal layer. Asci 8-spored, clavate, distinctly thickened at apex, with a I+ blue tholus, the outer gelatinous coat I+ pale blue, Bacidia to Biatora-type. Ascospores (3-)5-7-septate, hyaline, acicular, (26-)29-42 x 1.6-2.4 μm. Pycnidia rare, immersed, colourless or pale brown, 100-150 μm across. Conidia filiform, curved, 12-20 x c. 0.8 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: thallus without lichen substances; Arceutina-yellow pigment in subhymenium, Sedifolia-grey pigment in epithecium.

Note: a Mediterranean species growing on the bark of evergreen and deciduous broadleaved trees in open forest communities, mostly in humid places such as gorges or ravines. Hitherto only known from Crete and the Iberian Peninsula, to be looked for in Italy.

Growth form: Squamulose

Substrata: bark

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

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

Index Fungorum GBIF

Harrie Sipman https://archive.bgbm.org/digitalimages/Aegean/Waynea/P72020228k.jpg

Harrie Sipman - Source: https://archive.bgbm.org/digitalimages/Aegean/Waynea/P72020228k.jpg