ITALIC 7.0

Catillaria erysiboides (Nyl.) Th. Fr.

Lichenogr. Scand., 2: 572, 1874. Basionym: Lecidea erysiboides Nyl. - Not. Sällsk. Fauna Fl. Fenn., 4: 232, 1859.

Synonyms: Biatorina erysiboides (Nyl.) Arnold

Distribution: N - Frl, Ven (Nascimbene & al. 2005b), TAA (Nimis & al. 2015, Nascimbene & al. 2022). C - Tosc, Marc, Abr (Nimis & Tretiach 1999).

Description: Thallus crustose, greenish or grey-green, minutely granulose, very thin and often indistinct. Apothecia lecideine, 0.2-0.4 mm across, round to sometimes confluent and irregular in outline, yellowish-brown, red-brown to brown-black, with a concave to strongly convex disc and an initially raised, but soon excluded proper margin. Proper exciple pale yellow to dark brown in outer part, more or less colourless within, 40-50 μm thick laterally, K-; epithecium pale brown; hymenium colourless, 40-60 μm high, I+ blue; paraphyses not coherent, more or less branched in upper part; hypothecium pale yellow, 20-30 μm high, K-. Asci 8-spored, clavate, with an amyloid, slightly broadening tube-structure, approaching the Psora-type. Ascospores 1-septate, with one cell larger than the other, hyaline, ellipsoid (6-)8-15 x 3-5(-6) μm. Photobiont chlorococcoid. Spot tests: thallus and apothecia K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: on hard lignum, e.g. on horizontal faces of old stumps. According to Coppins (1981) the epithet erysiboides was used for widely different taxa (e.g. Mycobilimbia carneoalbida, Lecania cyrtella and related taxa, Micarea prasina, etc.); records from Tuscany and Marche (Nimis 1993: 204) need confirmation: they could refer to Micarea prasina or related species. The species does not belong to Catillaria s.str.

Growth form: Crustose

Substrata: lignum

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: very rare

Oromediterranean belt: rare

Montane belt: 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

E. Pittao CC BY-SA 4.0

TSB 13636

Leif Stridvall - Source: http://www.stridvall.se/lichens/gallery/

Courtesy: Anita Stridvall

Elena Pittao; Owner: Department of Life Sciences, University of Trieste

TSB 24672)