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

Gheza, Gabriele, Vallese, Chiara, Di Nuzzo, Luca, Corneti, Simona, Benesperi, Renato, Bianchi, Elisabetta, Canali, Giulia, Del Vecchio, Silvia, Francesconi, Luana, Giordani, Paolo, Nimis, Pier Luigi, Obermayer, Walter, Pistocchi, Chiara, Mayrhofer, Helmut & Nascimbene, Juri, 2025, Towards a better knowledge and conservation of cryptic macrolichens in Italy: a revision of the genus Cetrelia (Parmeliaceae, Lecanorales, lichenized Ascomycota), MycoKeys 120, pp. 231-254 : 231-254

publication ID

https://doi.org/10.3897/mycokeys.120.154233

DOI

https://doi.org/10.5281/zenodo.16780578

persistent identifier

https://treatment.plazi.org/id/41B0F02A-6114-526D-AF09-987DAD94F0BF

treatment provided by

MycoKeys by Pensoft

scientific name

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

 

Cetrelia chicitae (W. L. Culb.) W. L. Culb. & C. F. Culb. View in CoL

Description.

Thallus foliose, heteromerous, dorsiventral, loosely attached, forming wavy, wide-spreading, usually orbicular, wide rosettes. Upper surface glaucous-grey, lower surface black in the central part to brown at the lobe edges. Lobes broad and round, up to 20 mm wide, with raised margins. Pseudocyphellae punctiform to irregularly-shaped on upper surface, which are rather large and usually not raised, also developed in the older, central parts of thallus; pseudocyphellae on 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 (35–55 µm). Lower surface rather regularly ridged, with scattered, simple, black rhizines and a rhizine-free zone along the margin. Never found fertile in Italy.

Chemistry.

Cortex with atranorin (sometimes in low concentrations); medulla with alectoronic, α-collatolic and physodic acids.

Distribution in Italy.

Central-eastern Alps (16 specimens from 5 sites): Friuli Venezia Giulia (4 specimens from 2 sites), Veneto (2 specimens from 1 sites), Trentino Alto Adige (1 specimen from 1 site), Lombardia (9 specimens from 1 site). Fig. 2 View Figure 2 .

Habitat.

Beech, coniferous or mixed beech-coniferous forests in the montane belt (870–1195 m a. s. l.), moist due to frequent rainfall and / or fog, usually near streams.

Phorophytes.

Abies alba , Fagus sylvati ca.

Literature.

Confirmed citations: Friuli Venezia Giulia: Nascimbene et al. (2021); Veneto: Nascimbene et al. (2021).

Remarks.

This is the rarest Cetrelia species in Italy, which is in accord with the data from the rest of Europe ( Obermayer and Mayrhofer 2007; Harrold et al. 2009). It is instead one of the most widespread species in other areas, e. g., North America ( Howland and Lendemer 2023) and India ( Mishra and Upreti 2015).

Specimens examined.

See Suppl. material 1.