Lecidella elaeochroma var. elaeochroma f. soralifera (Erichsen) D. Hawksw.

Fld Stud. 3, 4: 561, 1972. Basionym: Lecidea elaeochroma var. soralifera Erichsen - Ber. Bot. Ver. Prov. Brand., 71: 86, 1929.
Synonyms: Lecidea limitata (Scop.) Gray var. soralifera (Erichsen) J.R. Laundon; Lecidea olivacea var. soralifera (Erichsen) Erichsen; Lecidella elaeochroma var. soralifera (Erichsen) Hertel
Description: Thallus crustose, episubstratic, continuous to verrucose, usually up to 0.5 mm thick, whitish to yellowish grey, sorediate, delimited by a dark prothallus. Soredia gathered in well-delimited, white to yellow-green, convex, rounded, 0.5-1(-1.3) mm wide soralia. Apothecia rather common, lecideine, black (brown in old or damaged specimens), sessile, 1-1.5 mm diam, with a flat to finally convex disc and a smooth to flexuose, often shiny, finally excluded proper margin. Proper exciple blue-green in outer part, colourless or brownish within, sometimes with crystals dissolving in K; epithecium blackish green, bluish green to dull grey-blue, rarely olive; hymenium 40-70 µm tall, colourless, not inspersed with oil droplets; paraphyses easily made free in K, simple, rarely anastomosing or branched in upper part, non-capitate; hypothecium brownish orange (K+ bright red-brown) to reddish brown. Asci 8-spored, clavate, with an intensely K/I+ blue tholus penetrated by a faintly amyloid, broadly cylindrical axial mass, and a poorly developed ocular chamber, the wall K/I-, surrounded by a K/I+ blue outer layer, approaching the Lecanora-type. Ascospores 1-celled, hyaline, thick-walled, broadly ellipsoid to ellipsoid, 9-19 x (4.5-)6-10 µm. Pycnidia dark, immersed. Conidia thread-like, more or less curved. Photobiont chlorococcoid. Spot tests: thallus and soralia K+ yellow, KC+ yellow, C+ orange, P- or P+ pale yellow (reactions often weak and patchy). Chemistry: arthothelin, granulosin, different xanthones, variable amounts of atranorin.
Growth form: Crustose
Substrata: bark
Photobiont: green algae other than Trentepohlia
Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)

Commonnes-rarity: (info)

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

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Rarity

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Predictive map

Ulrich Kirschbaum CC BY-SA 4.0 - Source: https://www.thm.de/lse/ulrich-kirschbaum/flechtenbilder
Central Europe; Germany: Hesse. (Coll/ident: Eichler/Cezanne). On Carpinus betulus


P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (15650)
2001/11/26


P.L. Nimis CC BY-SA 4.0
TSB 15650


P.L. Nimis CC BY-SA 4.0
TSB 15650


P.L. Nimis CC BY-SA 4.0
TSB 15650


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=721&lang=en
France, Crozon


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=721&lang=en
France, Crozon


Bernard Bouffinier - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=721&lang=en
France, Lannion


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=721&lang=en
France, Langres


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=721&lang=en
France, Langres


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=721&lang=en
France, Langres


Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=721&lang=en
France, Langres