ITALIC 8.0

Lecania nylanderiana A. Massal.

Sched. Crit., 8: 152, 1856.

Synonyms: Lecania athroocarpa Trevis.; Lecania odora Bagl. & Carestia?; Lecanora athroocarpa Nyl.

Distribution: N - Frl, Ven (Lazzarin 2000b, Nascimbene 2005c, 2008c, Watson 2014), TAA (Nascimbene & al. 2006), Lomb (TSB 21823), Piem (Isocrono & al. 2004), VA (Piervittori & Isocrono 1999), Emil (Fariselli & al. 2020), Lig. C - Laz, Sar.

Description: Thallus crustose, episubstratic, thin, of sharply angular, flat areoles, whitish, pale grey to grey-brown. Apothecia lecanorine, 0.3-0.8 mm across, usually crowded and often deformed by mutual compression, with a dark brown to black, but always whitish pruinose, flat to slightly convex disc, and a grey-pruinose thalline margin. Thalline exciple clearly lecanorine, the cortex with a network of narrow hyphae, the medulla rich in algae; proper exciple thin to moderately thick, pale to dark brown in outer part, paler within; epithecium patchily dark brown, with an epipsamma; hymenium colourless or yellowish in upper part, 60-80 µm high; paraphyses coherent, the apical cells swollen, up to 6 µm wide, with a dark cap. Asci 8-spored, narrowly clavate, with a K/I+ blue tholus and a central non-amyloid area, Bacidia-type. Ascospores 3-septate, hyaline, ellipsoid with rounded ends, 12-16(-18) x 4-5 µm, thin-walled. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a temperate species found on vertical to rain-sheltered surfaces of calcareous rocks. Several Italian records need confirmation.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

In underhangs rarely wetted by rain

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: very rare

Submediterranean belt: very rare

Padanian area: absent

Humid submediterranean belt: very rare

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 (21823)
2001/11/25
var. athallina, isotypus

Zahlbruckner A. 1926. Lichenes (Flechten). In: Engler A. (ed.): Die natürlichen Pflanzenfamilien. 2nd ed., vol 8, W. Engelmann, Leipzig, 270 pp.