ITALIC 8.0

Calicium lucidum (Th. Fr.) M. Prieto & Wedin

Fungal Divers, 2016 (MB 817534). Basionym: Trachylia lucida Th. Fr. - Öfvers. K. Vetensk.-Akad. Handl., 12: 18, 1855.

Synonyms: Acolium lucidum Rabenh.; Calicium virellum Nyl.; Cyphelium lucidum (Th. Fr.) Th. Fr.

Distribution: N - Ven (Puntillo & Puntillo 2009), TAA (Nascimbene & al. 2007b, Puntillo & Puntillo 2009), Lomb (Puntillo & Puntillo 2009).

Description: Thallus crustose, areolate to warted, the marginal areoles somewhat elongate, bright yellow-green to golden yellow. Cortex 9-13 µm thick, of minute, isodiametric, 2-3 µm wide cells; photobiont layer densely inspersed with minute yellow crystals. Apothecia 0.5-1 mm across, with a distinctly yellow-pruinose margin. Exciple 28-50 µm wide laterally, blackish brown, strongly thickened at base, of sclerotized, interwoven hyphae; mazaedium present, black; hypothecium dark, convex, up to 225 µm thick in the central part. Asci 8-spored, clavate, formed singly from hooked ascogenous hyphae, dissolving early, with uniseriately arranged ascospores. Ascospores 1-septate and constricted at septum, brown, ellipsoid, 17-22 x 8-10 µm, at first smooth but soon with a coarsely rimose-areolate surface. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-. Chemistry: thallus and yellow pruina of the apothecia with vulpinic acid.

Note: a mainly boreal-montane, circumpolar species found on old conifers in humid, open, montane to subalpine forests with frequent fog. Rare in the Alps. It was included as “Regionally Extinct” in the Italian red list of epiphytic lichens (Nascimbene & al. 2013c).

Growth form: Crustose

Substrata: bark

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: very rare

Oromediterranean belt: absent

Montane belt: extremely rare

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: absent

Humid mediterranean belt: absent

Dry mediterranean belt: absent

pH of the substrata:

1

2

3

4

5

(info)

Solar irradiation:

1

2

3

4

5

(info)

Aridity:

1

2

3

4

5

(info)

Eutrophication:

1

2

3

4

5

(info)

Poleotolerance:

0

1

2

3

(info)

Altitudinal distribution:

1

2

3

4

5

6

(info)

Predictive model

Herbarium samples

Index Fungorum GBIF

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (11515)
2002/05/13
young apothecia

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (11515)
2002/05/13