Bilimbia accedens Arnold

Flora, 45: 391, 1862.
Synonyms: Bacidia accedens (Arnold) Lettau; Bacidia decedens (Stizenb.) Mig.; Mycobilimbia accedens (Arnold) V. Wirth ex Hafellner; Myxobilimbia accedens (Arnold) Hafellner
Description: Thallus crustose, episubstratic, whitish, farinose-granulose. Apothecia frequent, biatorine, sessile, 0.3-0.7(-0.8) mm across, with a blackish brown to black, initially flat, then rapidly convex disc, and a thin, soon excluded proper margin. Proper exciple well-developed, of stout, radiating hyphae in a gel matrix; epithecium bright to blackish emerald green or olive-green, K-; hymenium colourless, >60 µm high, I+ blue; paraphyses coherent, mostly simple, 2-3 μm thick at mid-level, the apical cells up to 5(-6) μm wide; hypothecium reddish brown at least in upper part. Asci 8-spored, cylindrical-clavate, with a K/I+ blue apical dome penetrated by a narrow, K/I– apical cushion surrounded by an indistinct, apically often tapering, wall K/I– but surrounded by an I+ red-brown, K/I+ blue outer layer. Ascospores (5-)7-9(-10)-septate, hyaline, ellipsoid-cylindrical, 20-45 x (5-)6-7(-9) µm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Growth form: Crustose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

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

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Altitudinal distribution:

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Rarity

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P.L. Nimis CC BY-SA 04
TSB 34837


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (34837)
2002/02/16


Wolfgang von Brackel - CC BY-4.0
Germany, Bavaria, Allgäu, Schlappoltkopf