Cetrelia chicitae (W.L. Culb.) W.L. Culb. & C.F. Culb.

Contr. U.S. Nat. Herb., 34: 504, 1968. Basionym: Cetraria chicitae W.L. Culb. - Bryologist, 68: 95, 1965.
Synonyms:
Description: Thallus foliose, heteromerous, dorsiventral, loosely attached, forming wavy, wide-spreading, usually orbicular, 6-20(-40) cm wide rosettes. Lobes broad and rotund, (0.5-)1-1.5(-2) cm wide, with raised margins, greenish grey (sometimes tinged brown), with punctiform pseudocyphellae on upper surface, which are rather large and usually not raised, also developed in the older, central parts of thallus; pseudocyphellae on the lower surface not developed, or appearing as very small white dots. Soralia primarily marginal on strongly twisted lobes, giving the lobe-ends a somewhat nibbled appearance, usually smooth, with coarse soredia. Lower surface black, rather regularly ridged, with scattered, simple, black rhizines and a brown, rhizine-free zone along the margin. Upper and lower cortices prosoplectenchymatous, the upper one with a non-pored epicortex, of densely agglutinated hyphae with tiny lumina; medulla white, with isolichenan, I-. Apothecia very rare, lecanorine. Asci 8-spored, Lecanora-type. Ascospores 1-celled, hyaline, ellipsoid, 12-15 x 7-10 µm. Pycnidia: unknown. Photobiont chlorococcoid. Spot tests: cortex K+ (weakly) yellow, C-, KC-, P-; medulla and soralia K+ yellow, C- or C+ faintly orange, KC+ slowly but then persistently orange, P-, UV-. Chemistry: cortex with atranorin and chloroatranorin (in lower amounts than in soralia); soralia (and medulla) with atranorin, alectoronic acid and the α-collatolic acid syndrome (including physodic acid and 4-0-methyphysodic acid).
Growth form: Foliose, broad lobed
Substrata: bark
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)
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: very rare
Dry submediterranean belt: absent
Humid submediterranean belt: absent
Padanian area: absent

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Rarity

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Predictive map

Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/


Author: André Aptroot. Source: http://www.tropicallichens.net/ CC BY-SA-NC


Pier Luigi Nimis - CC BY-SA 4.0
Herbarium: TSB 30272


Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/


Pier Luigi Nimis - CC BY-SA 4.0
Herbarium: TSB 30272


Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/


Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/


Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/


Walter Obermayer CC BY-SA 4.0 - Source: Lichens of Noricum - http://lichens-of-noricum.uni-graz.at/


Felix Schumm - CC BY-SA 3.0
14987 - Germany, Bayern, Kreis Traunstein, Chiemgauer Alpen, Hochfelln, Weg von der Mittelstation der Seilbahn (47,76966°N, 12,57550°E, 1090 m) zur Talstation, an Fagus bei 950 m F. Schumm - Foto. Mark und Sorale K-, C-, KC+ rot, UVL+ weiß (collatol, alectoronsäure)