Bacidina chloroticula (Nyl.) Vězda & Poelt

in Vezda, Folia Geobot. Phytotaxon., 25: 432, 1991. Basionym: Lecidea chloroticula Nyl. - Flora, 60: 504, 1878.
Synonyms: Bacidia chloroticula (Nyl.) A.L. Sm.; Bacidia lehriana Erichsen; Bacidia neglecta Vězda; Bacidia paulula Erichsen; Bacidia perminutula (Nyl.) H.Olivier; Bacidia subchlorotica (Nyl.) Flagey; Bacidina neglecta (Vězda) Vězda
Description: Thallus crustose, thin, ecorticate, continuous, rimose or warted, grey-green, smooth to granulose, usually not producing goniocysts. Apothecia biatorine, usually numerous, 0.15-0.25 mm across, whitish, pale yellow or pale grey, with a flat to slightly convex, epruinose disc, and a usually paler, white or very pale yellow, persistent proper margin. Proper exciple 4-6 cells thick, 24-33 μm wide laterally, without crystals, of very thin-walled (0.5-1 μm), not distinctly radiating hyphae, the outer rim colourless or very pale brown in uppermost part, the medullary part colourless; epithecium colourless or rarely very pale brown and in this case K+ purple, indistinctly delimited from the hymenium; hymenium 30-40(-50) μm high, mostly colourless; paraphyses mostly simple, 1.5-2 μm thick at mid-level, the apical cells clavate or only slightly thickened, to 3-4(-6) μm wide; hypothecium poorly developed, colourless. Asci 8-spored, clavate to cylindrical-clavate, the apical dome K/I+ dark blue with a pale, conical-pointed apical cushion (axial mass) never penetrating through the entire d-layer, the wall K/I-, but the thin outer gel K/I+ blue, Bacidia-type. Ascospores (0-)1-3-septate, hyaline, needle-like, straight to sigmoid, twisted in the asci, (17-)21-34(-39) x 0.9-1.8 μm. Pycnidia immersed, colourless. Macroconidia thread-like, curved and non-septate, microconidia lageniform, 3-4 x 1-1.5 µm. Photobiont chlorococcoid, the cells 5-12(-14) μm wide. Spot tests: thallus and apothecia K-, C-, KC-, P-, UV-. Chemistry: thallus without lichen substances.
Growth form: Crustose
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)
Pioneer species

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: extremely rare
Montane belt: very rare
Dry submediterranean belt: extremely rare
Humid submediterranean belt: very rare
Padanian area: absent

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Rarity

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Predictive map

Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Starzlachtal


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (15121)
2001/11/22


Pier Luigi Nimis CC BY-SA 4.0
TSB 41676


Pier Luigi Nimis CC BY-SA 4.0
TSB 41677


Curtis Randall Björk – CC BY-SA 4.0
British Columbia, Clearwater Valley, west shore of Clearwater Lake, Wells Gray Provincial Park Phyllite rocks on lake shore, periodically inundated 2006-11-03