Caloplaca sbarbaronis B. de Lesd.

Bull. Soc. Bot. Fr., 96: 173, 1949
Distribution: N - Lig.
Description: Thallus crustose, episubstratic, dirty white to ochre-white, relatively thick, granulose-subsquamulose, consisting of small, contiguous (rarely scattered), angular areoles separated by thin fissures. Apothecia 0.3-0.5 mm across, reddish brown, sessile, with an initially flat then convex (sometimes finally almost hemispherical) disc and a very thin, concolorous, soon excluded proper margin. Epithecium yellowish, granulose, K+ red, C+ red; hymenium colourless, 130-150 μm high; paraphyses rather lax, mostly simple, capitate; hypothecium colourless. Asci 8-spored, clavate, functionally unitunicate, apically thickened with a broad internal beak, the inner part of apex and external cap I+ blue, Teloschistes-type. Ascospores 2-celled, polarilocular, hyaline, ellipsoid, 16-27(-30) x 9-13 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-; apothecia K+ red, C+ red. Chemistry: thallus without lichens substances; apothecia with chlorinated anthraquinones.
Note: a poorly-known, apparently coastal, silicicolous species. Claude Roux (in litt.) has examined the type material in MARSS: the brownish apothecia react C+ red (chlorinated anthraquinones), and the ascospores measure 16-27(-30) x 9-13 µm.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Poorly known taxon in need of further study
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: very rare

pH of the substrata:


Solar irradiation:








Altitudinal distribution:


Predictive model
Herbarium samples

Field Museum of Natural History (F) - Public Domain
Italy, Liguria