ITALIC 8.0

Diplotomma parasiticum (B. de Lesd.) Diederich, Cl. Roux & Haluwyn

in Roux & al., Catalogue des Lichens et Champignons Lichénicoles de France Métropolitaine: 1314, 2014. Basionym: Diplotomma epipolium var. parasiticum B. de Lesd. - Recherch. Lich. Dunkerque: 217, 1910.

Synonyms:

Distribution:

Description: Thallus poorly evident or absent, doubtfully lichenized, the hyphae developing on the thalli or inside the apothecia of Polyozosia-species. Apothecia lecideine, 0.2-0.3 mm across, with a black disc, a thin, often soon excluded proper margin. Proper exciple thin, brown, of radiating hyphae; epithecium dark brown; hymenium colourless, K/I+ blue; paraphyses simple, c. 1.5 μm thick at mid-level, the apical cells to 4.5 μm wide; hypothecium brown. Asci 6-8-spored, clavate to cylindrical-clavate, the apical dome K/I+ dark blue with a pale, conical-pointed apical cushion (axial mass), the wall I-, but the thin outer gel I+ blue, approaching the Bacidia-type Ascospores 3-septate (rarely with an additional longitudinal septum), brown, ellipsoid, 12.5-16 x (5.5-) 6.5-7.5 μm, the wall minutely warted. Photobiont probably absent. Spot tests: thallus K-, C-, KC-, P-. Chemistry: without lichen substances.

Note: a long-forgotten, probably non-lichenized, lichenicolous species growing on the thalli and inside the apothecia of species of Polyozosia. To be looked for in Italy.

Growth form: Lichenicolous fungus

Substrata: rocks

Reproductive strategy: mainly sexual

paras Polyozosia-species

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

Source: https://fungi.myspecies.info/all-fungi/diplotomma-parasiticum Photo uploaded by Mark Powell - CC BY NC

Diplotomma parasiticum, lichenicolous on the apothecia of Lecanora dispersa agg., north wall of church, East Lothian.

Source: https://fungi.myspecies.info/all-fungi/diplotomma-parasiticum Photo uploaded by Paul Cannon - CC BY NC

Diplotomma parasiticum, ascus, ascospores and paraphyses. Collection from thallus of Myriolecis antiqua, VC17 Surrey.