ITALIC 8.0

Puttea margaritella (Hulting) S. Stenroos & Huhtinen

in Stenroos & al., Bryologist, 112, 3: 550, 2009. Basionym: Lecidea margaritella Hulting - Bot. Notiser: 304, 1910

Synonyms: Fellhanera margaritella (Hulting) Hafellner

Distribution: N - TAA (Pistocchi & al. 2026).

Description: Thallus crustose, mostly endosubstratic and poorly evident, consisting of a thin layer of delicate hyphae and small algal cells, developing on the leaflets of Ptilidium. Apothecia biatorine, whitish or cream-coloured, very rarely medium brown when old, up to 0.4 mm across, adnate to constricted at base, with a convex disc, the proper margin level with disc, barely visible in very young apothecia only. Proper exciple colourless in outer part, covered in a continuous layer of crystals soluble in K and N, the hyphae richly branched, closely septate with narrow lumina, 1-2 μm thick, running parallel and perpendicularly from the medullary part of gelatinized textura intricata; epithecium colourless or very pale brown, covered with a gelatinous layer topped with a layer of hyaline crystals soluble in K and N; hymenium colourless; paraphyses branched and anastomosing, c. 1 μm thick, equalling the asci in length; hypothecium colourless. Asci 8-spored, clavate, with a K/I+ blue tholus including a thin, darker K/I+ blue tubular ring-structure. Ascospores 1-celled, hyaline, ellipsoid-subfusiform, 5.3-7.3 x 2.3-3 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, C-, P-, UV-. Chemistry: thallus with an unknown substance.

Note: on the leafy liverwort Ptilidium pulcherrimum, rareky on other liverworts, clearly damaging the host, rarely spreading to adjacent wood or bark; widespread in Europe from the boreal to the temperate-montane zone; in the Alps it was recorded from Austria, Switzerland and Italy, but likely to occur elsewhere in coniferous forests.

Growth form: Crustose

Substrata: bark

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: extremely 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

INDEX FUNGORUM GBIF DOLICHENS

P.L. Nimis CC BY-SA 04

TSB 41227

P.L. Nimis CC BY-SA 04

TSB 41227

P.L. Nimis CC BY-SA 04

TSB 41227

P.L. Nimis CC BY-SA 04

TSB 41227