Rinodina poeltiana Giralt & Obermayer

Herzogia, 9: 709, 1993.
Synonyms:
Distribution: N - TAA (Nascimbene & al. 2014, Nascimbene 2014).
Description: Thallus crustose, episubstratic, of contiguous to scattered, blastidiate areoles, without a distinct prothallus. Areoles grey to grey-brown, matt, flat to slightly convex, 0.1-0.3(-0.5) mm wide. Blastidia dark brown, 20-30(-40) µm thick, confluent, forming a continuous granulose crust, developing from the surface and margins of the areoles. Apothecia rare, lecanorine, at first adnate, then sessile, 0.2-0.5 mm across, with a usually flat, brown disc, an entire, smooth to blastidiate, prominent thalline margin, and often a raised parathecial ring between the disc and the thalline margin. Thalline exciple 50-80(-100) µm wide, corticate, devoid of crustals, I-; proper exciple 5-10 µm wide laterally, expanding to 40-60 µm in upper part, I-; epithecium reddish brown, K-; hymenium colourless, 70-90(-100) µm high, not inspersed with oil droplets; paraphyses 1.5-2(-2.5) µm thick in lower part, the apical cells capitate, 3.5-6 µm wide; hypothecium colourless, 40-70(-100) µm high. Asci 6-8-spored, clavate, the K/I+ blue tholus penetrated by a faintly amyloid apical cushion with parallel or diverging flanks, the wall K/I-, surrounded by a K/I+ blue outer layer, Lecanora-type. Ascospores 1-septate, brown, broadly ellipsoid, (13-)14-18(-21) x (7-)8-11(-13) µm, smooth, without torus or with a poorly developed torus, Pachysporaria-type II. Pycnidia dark, immersed in thallus. Conidia bacilliform, 3.5-4.5 µm long. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: a rather poorly known epiphytic species. The type material, from Austria, was growing on Salix alba.
Growth form: Crustose
Substrata: bark
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Poorly known taxon in need of further study

Commonnes-rarity: (info)

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

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 19731



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (19731)
2001/11/29



P.L. Nimis CC BY-SA 4.0
TSB 19731


Modified from: https://gzu.jacq.org/GZU000286119
GZU000286119 - Obermayer,Walter Vězda, Lichenes rariores exsiccati (Brno) 127 - Austria. Stiria: pars Alpinum "Seetaler Alpen" dicta, 6 km ad occidentem ab Unzmarkt, Murknie, inter Wöll et Edling ; Alt. 720 m Habitat Ad corticem Salicis albae