ITALIC 8.0

Mycobilimbia albohyalina (Nyl.) S.Y. Kondr.

in Kondratyuk & al., Acta Bot. Hung., 61, 3-4: 303, 2019. Basionym: Lecidea anomala f. albohyalina Nyl. - Lichenes Scand.: 203, 1861.

Synonyms: Biatora albohyalina (Nyl.) Bagl. & Carestia; Lecidea albohyalina (Nyl.) Th. Fr.

Distribution: N - Ven, TAA (Nascimbene & al. 2007b, 2022), Piem (Isocrono & al. 2004). C - Mol (Nimis & Tretiach 1999, Caporale & al. 2008).

Description: Thallus crustose, endosubstratic or thinly episubstratic, continuous to obscurely areolate, white to grey, often forming large patches. Apothecia biatorine, rounded or irregular in outline, sessile and constricted at base, sometimes confluent, 0.2-0.3(-0.4) mm across, with a whitish, pale pink-brown, beige or pale grey-brown, often tuberculate, epruinose, convex disc, and an indistinct or very thin, usually paler, soon excluded proper margin. Proper exciple colourless, laterally 20-50 µm wide, of radiating hyphae with elongated lumina; epithecium colourless, not differentiated from the hymenium; hymenium colourless, 30-50 µm high, I+ blue; paraphyses coherent, simple or sparingly branched in upper part, 1-2 µm thick at mid-level, the apical cells 1.5-2.5 µm wide; hypothecium colourless. Asci 8-spored, clavate, with a K/I+ blue apical dome penetrated by a narrow, K/I– apical cushion surrounded by a narrow, deeply K/I+ blue zone, the wall K/I- but surrounded by an I+ red-brown, K/I+ blue outer layer, the ocular chamber relatively small, Biatora-type. Ascospores 1-celled (rarely a few 1-septate), hyaline, ellipsoid, 8-13(-17) x 2-3.5 μm. Pycnidia beige to pale brown, half-immersed in thalline warts, the wall colourless. Conidia thread-like, 24-51 x 1.5-2 µm, often protruding from the pycnidia as a white cap. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: on smooth, acid bark.

Growth form: Crustose

Substrata: bark and lignum

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Poorly known taxon in need of further study

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: 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

P.L. Nimis CC BY-SA 04

TSB 19455

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

Herbarium: TSB (19455)
2003/03/19