ITALIC 8.0

Scutula epiblastematica (Wallr.) Rehm

Rabenhorst's. Krypt.-Fl., 2nd ed. 1.3, 32: 322, 1890 (1896)]. Basionym: Peziza epiblastematica Wallr. - Fl. Crypt. Germ., 2: 464, 1833.

Synonyms: Biatorina epiblastematica (Wallr.) A.L. Sm.; Catillaria epiblastematica (Wallr.) Vain.; Patellaria epiblastematica (Wallr.) Sacc.

Distribution: N - Ven (Brackel 2016), TAA (Brackel 2016), Lomb (Brackel 2016), Piem (Brackel 2016). C- Tosc (Brackel 2016).

Description: Thallus absent, not lichenized, developing inside the thalli of Peltigera-species, causing bleaching of the host tissue and damage to the host photobiont. Apothecia lecideine, 0.1-0.3(-0.5) mm across, aggregated into clusters or rarely scattered, pale to dark brown or finally black, with a flat to slightly convex disc and a usually persistent proper margin. Proper exciple of parallel, radiating, branched and anastomosing, strongly adglutinated hyphae, the outermost rim colourless, pale brown to dark reddish brown, the inner part colourless, greenish brown to red-brown; epithecium discontinuous, with a granular, greenish brown to greenish black pigment; hymenium colourless, 35-60 µm high, the hymenial gel hemiamyloid; paraphyses septate, very sparingly branched and anastomosing, 1.5-3 µm thick at mid-level. the apical cells markedly thickened, up to 7 µm wide; hypothecium colourless to pale brown, of loosely intertwined hyphae. Asci 8-spored, with an amyloid tholus, a diffuse non-amyloid apical cushion, and an outer amyloid wall layer. Ascospores (0-)1(-3)-septate, hyaline, ellipsoid to narrowly ellipsoid, 8.5–12.5 x 3–4.5 µm, thin-walled, without a perispore. Pycnidia globose, subimmersed to sessile. Microconidia hyaline, cylindrical to shortly filiform, often slightly curved, (4-)5-8(-9) x (0.5-)1-1.5 µm; mesoconidia cylindrical to falcate, (5-)6-8(-9) x (1.5-)2-2.5 µm. Photobiont absent. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: thallus without lichen substances; apothecia with different pigments.

Note: a non-lichenized lichenicolous fungus living on the thalli of species of Peltigera with Nostoc as the main photobiont.

Growth form: Lichenicolous fungus

Substrata: soil, terricolous mosses, and plant debris

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: rather rare

Subalpine belt: rather rare

Oromediterranean belt: absent

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:

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5

(info)

Solar irradiation:

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Aridity:

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Eutrophication:

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Poleotolerance:

0

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(info)

Altitudinal distribution:

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Predictive model

DOLICHENS

Dr. L. Rabenhorst's Kryptogamen-Flora von Deutschland, Oesterreich und der Schweiz . Fig. 1—7. Scutula epiblastematica. Fig. 8—9. Scutula epigena - Public Domain