ITALIC 7.0

Blennothallia furfureola (Müll. Arg.) Otálora, P.M. Jørg. & Wedin

Fungal Divers. (online version), 64: 282, 2013. Basionym: Collema furfureolum Müll. Arg. - Flora, 72: 142, 1889.

Synonyms: Collema sublaeve (Jatta) Zahlbr.

Distribution: S - Pugl, Si.

Description: Thallus foliose, homoiomerous, subgelatinous when wet, often forming 1-3(-4) cm wide, irregular patches, deeply and broadly lobed. Lobes often crowded and imbricate, 0.5-1(-5) mm wide, 65-130(-200) µm thick when wet, rounded, flat or concave, often ascending and ear-shaped, olive-green or greenish black (more green in shaded situations), with at first globular, then flattened isidia. Lower surface usually paler than upper surface, with white hapters. Upper and lower cortices absent, but middle part of Thallus section paraplectenchymatous. Apothecia rather rare, slightly constricted at base, up to 1 mm across, with a brown disc and a thin, finally often excluded, granulose to lobulate thalline margin. Thalline exciple ecorticate; proper exciple thin, subparaplectenchymatous; hymenium colourless, 105-110 µm high, I+ blue; paraphyses simple to sparingly branched, c. 2 µm thick at mid-level, the apical cells up to 5 µm wide; hypothecium colourless to pale yellow. Asci (6-)8-spored, narrowly clavate, the apex thick, with a I+ blue apical dome and a I+ blue annulus projecting downwardly. Ascospores submuriform, hyaline, broadly oblong to ellipsoid, with rounded or acute ends, 15-20 x 7-8.5 µm. Pycnidia immersed, paler than thallus. Conidia bacilliform, usually slightly swollen at both ends, 4.3-5 x 1.2-1.5 µm. Photobiont cyanobacterial (Nostoc, the cells in short chains with less than 4 cells). Spot tests: all negative. Chemistry: without lichen substances.

Note: this species, related to B. crispa, was described from Asia. All European records derive from Degelius (1986), and - in my opinion - they could prove to refer to B. crispa.

Growth form: Foliose, narrow lobed

Substrata: rocks

Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: absent

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: extremely rare

Humid mediterranean belt: extremely rare

Dry mediterranean belt: extremely rare

pH of the substrata:

1

2

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4

5

(info)

Solar irradiation:

1

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4

5

(info)

Aridity:

1

2

3

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5

(info)

Eutrophication:

1

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4

5

(info)

Poleotolerance:

0

1

2

3

(info)

Altitudinal distribution:

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6

(info)

Predictive model