Lecidea plebeja Nyl.

Flora, 48: 148, 1865
Synonyms: Lecidea enalliza Nyl.
Description: Thallus crustose, mostly endosubstratc and poorly evident, rarely very thinly episubstratic and olive-green or grey-green, minutely verruculose. Apothecia lecideine, blac, circular in outline, 0.2-0.5 mm across, adnate, with a long-time flat to finally convex disc and a thin, often finally excluded proper margin. Proper exciple brown-black or reddish black, paler in outer part, the cells 3-5 μm wide, with a dark brown apical cap; epithecium olive-brown or yellow-brown, K-, N-; hymenium pale brown, 45-50 μm high, I+ blue turning reddish: paraphyses coherent, 1-2 μm thick, the apical cells up to 3 μm wide, distinctly brown-capped; hypothecium brown to reddish brown. Asci 8-spored, narrowly clavate, Micarea-type. Ascospores 1-celled, hyaline, narrowly ellipsoid or subfusiform, 6.5-11 x 2-3 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-. Chemistry: without lichen substances.
Note: a probably holarctic, boreal to temperate-montane species based on a type from Finland, found on wood and bark of conifers (Picea), with a few records from the Eastern Alps; to be looked for in the Italian Alps. According to Ertz et al. (2013), this species likely belongs to an undescribed genus within the Malmideaceae, a sister lineage of Pilocarpaceae.
Growth form: Crustose
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

pH of the substrata:


Solar irradiation:








Altitudinal distribution:


Predictive model

P.L. Nimis CC BY.SA 4.0
TSB 27325

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (27325)