Amandinea oleicola (Nyl.) Giralt & van den Boom

in van den Boom & Giralt, Sydowia, 64: 152, 2012. Basionym: Lecidea oleicola Nyl. - Bull. Soc. linn. Normandie, 6: 312, 1873.
Distribution: C - Tosc (TSB 5587).
Description: Thallus crustose, episubstratic, pale grey, rimose-areolate. Medulla white, I-, without crystals. Apothecia at first immersed-erumpent and apparently lecanorine, being surrounded by an entire to cracked pseudothalline margin, becoming lecideine and sessile, 0.3-0.5 mm across, with a black, epruinose, at first concave, then flat to slightly convex disc, and a persistent proper margin. Epithecium brown; hymenium colourless, not inspersed with oil droplets; paraphyses capitate, with a dark brown cap; hypothecium pale to dark brown. Asci 8-spored, clavate, Bacidia-type. Ascospores 1-septate brown, ellipsoid, often curved, (10.5-)11-13(-15) x 5.5-6.5(-7) μm, Buellia-type, constricted at septum, the wall clearly ornamented, the ontogeny of type A (apical wall thickenings produced after septum formation). Pycnidia black, subimmersed. Conidia filiform, curved, 13-17 x c. 1 μm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: a recently resurrected epiphytic species, also known from Portugal and the Canary Islands, probably more common in the warmest parts of Mediterranean Italy.
Growth form: Crustose
Substrata: bark
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)
Taxon bound to maritime-coastal situations

Commonnes-rarity: (info)

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

pH of the substrata:


Solar irradiation:








Altitudinal distribution:


Predictive model

United States National Herbarium - Smithsonian (US:Lichens) - Collector: A. Crozals Number: 153291 Date: 1909-06-00 - 1909-06-30 Locality: France, Occitanie, Hérault, - CC BY-NC 3.0 - Source: Consortium of Lichen Herbaria (2023) http// Accessed on December 14.