Français English

Candelaria concolor (Dicks.) Stein

Synonyms:

Family: CANDELARIACEAE

Habitat: Ubiquitous

Description

   Thallus typically forming small, discrete suborbicular cushions 1-3 cm diam., able to associate and form large colonies, lobules markedly divided in small straps, 0,5-1,5 long, 0.2-0.5 mm wide, more or less appressed to the substratum, tips finely incised delimiting a sorediate margin, upper surface yellow-greenish to yellow-mustard in shaded conditions, lemon yellow when sunny; almost white beneath, rhizines scattered, simple, white (N.B. The margin is consequently lace-like). Apothecia rare, 0.5-1 mm diam., disc flat, dull dark-yellow, thalline exciple ± uneven-granular with age, paler. Ascii up to 50-spored. Ascospores broadly ellipsoid, simple but sometimes appearing 1-septate owing to 2 oil microdroplets,  6-14 x 4-6 µm (7-11 x 4-5 µm according to our measures). Photobiont: Chlorococcoid. Thallus C-, K-, KC-, Pd-. Slightly thermophile, on nutrient-rich bark, notably of tree alignments in cities, seldom on rocks. N.B. Not to be confused with Xanthoria candelaria  and  some close Xanthoria species that are common on rocks, with lobes more erect and less lace-like, yellow-orange to orange (and not yellow!) and above all K+ purple.*

 

 







Candelaria concolor Ch芒teaulin 2
Bernard BOUFFINIER



Candelaria concolor Sainte Anne la Palud 1
Bernard BOUFFINIER



Candelaria concolor Ch芒teaulin
Bernard BOUFFINIER



Candelaria concolor For锚t du Cranou
Bernard BOUFFINIER



Candelaria concolor Dr么me
Jacques HAINE



Candelaria concolor Habitat Dr么me
Jacques HAINE



Candelaria concolor Dr么me 3
Jacques HAINE



Candelaria concolor Argol
Bernard BOUFFINIER



Candelaria concolor Asque Congo Dr么me
Jacques HAINE



Candelaria concolor Asque et photobionte Congo Dr么me 2
Jacques HAINE



Candelaria concolor Spores et photobionte Dr么me 3
Jacques HAINE



Candelaria concolor Sainte Anne la Palud 2
Bernard BOUFFINIER



Candelaria concolor Ch芒teaulin 3
Bernard BOUFFINIER



Candelaria concolor Forme p芒le de l'ombre Pougastel-Daoulas 1
Bernard BOUFFINIER



Candelaria concolor Pougastel-Daoulas 2
Bernard BOUFFINIER



Return
Content : Alain Gérault - Website development : Sylvain Ard - Hosting : Online.net