ITALIC 8.0

Lecanora hypoptella (Nyl.) Grummann

Cat. Lich. Germ.: 19, 1963. Basionym: Lecidea hypoptella Nyl. - Flora, 48: 146, 1865.

Synonyms: Lecanora symmictiza (Nyl.) Hedl.; Lecidea symmictiza Nyl.

Distribution: N - Ven, TAA (Nascimbene 2013, Nascimbene & al. 2014, 2022, Trindade & al. 2021).

Description: Thallus crustose, thinly episubstratic, sometimes poorly evident, continuous to rimose, whitish or grey. Apothecia lecanorine only when young, later biatorine, 0.2-0.5 mm across, sessile, with a convex, pale to dark brown, often black-dotted disc, and a thin, soon excluded thalline margin. Exciple of radiating hyphae, without algae or with a few algae at the base only; epithecium patchily brown black, without crystals; hymenium colourless, 35-55 μm high; paraphyses lax in K, with distinctly swollen, brown-black apical cells; hypothecium colourless. Asci 8-spored, clavate, very thin-walled, with a K/I+ blue, tall tholus penetrated by a faintly amyloid apical cushion, the wall K/I-, surrounded by a blue outer layer, Lecanora-type. Ascospores 1-celled, hyaline, narrowly ellipsoid, 8-15 x 3-4.5 μm, often guttulate and appearing 1-septate. Pycnidia black, semi-immersed. Conidia 2-4 × 1.5 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: a mainly boreal-montane lichen found on lignum and acid bark in upland areas; it belongs to a poorly known group and is widespread in Scandinavia, being also known from the British Isles, France, central Europe, and the mountains of the Iberian Peninsula; perhaps more widespread in the Alps.

Growth form: Crustose

Substrata: bark and lignum

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: very rare

Oromediterranean belt: very rare

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

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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:

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6

(info)

Predictive model

Herbarium samples

Index Fungorum GBIF

Leif Stridvall http://www.stridvall.se/la/galleries.php . Courtesy: A. Stridvall

Author: Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php

Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php . Courtesy: A. Stridvall