ITALIC 8.0

Lecanographa farinosa (Hepp) Egea & Torrente

Bibl. Lichenol., 54: 130, 1994. Basionym: Opegrapha farinosa Hepp in Stizenberger - N. Acta Leopoldin.-Carolin., 32, 4: 6, 1865.

Synonyms: Lecanactis farinosa (Hepp) Egea, Torrente & Manrique

Distribution: C - Sar (Egea & al. 1993, Egea & Torrente 1994).

Description: Thallus crustose, episubstratic, white, rimose-areolate, farinose-granulose, up to 230 μm thick but sometimes poorly developed, ecorticate, with a cretaceous medulla. Apothecia round, irregular or lirelliform, 0.7-1.8 x 0.4-1 mm, simple or sparingly branched when lirelliform, immersed to adnate, black but usually white-pruinose, with a flat to slightly convex disc, and a thin, entire to wavy proper margin. Proper exciple black, extending below the hymenium; epithecium brownish; hymenium colourless, 55-75 μm high, I+ reddish; paraphysoids richly branched and anastomosing, up to 1.5 μm thick, the apical cells hardly swollen; subhymenium pale brown, 12-15 μm high; hypothecium black to brown-black. Asci 8-spored, narrowly clavate to cylindrical, fissitunicate, the apex with a narrow, K/I± pale blue apical dome penetrated by a small ocular chamber surrounded by a small, K/I+ dark blue, ring-like zone (Grumulosa-type of Egea & Torrente 1994). Ascospores 5-7-septate, hyaline, spindle-shaped, straight or slightly curved, (18-)20-26 x 3.5-5 μm, the wall slightly thickened at septa, with a thick gelatinous perispore. Pycnidia black, immersed. Conidia straight to slightly curved, 5-7 x 1.2-1.5 μm. Photobiont trentepohlioid. Spot tests: thallus K-, C-, KC-, P+ orange. Chemistry: psoromic and conpsoromic acids, sometimes confluentic acid, plus an unidentified substance.

Note: a species known from the coasts of the Mediterranean Region, from Portugal to Tunisia, found beneath overhangs of coastal siliceous rocks protected against salt-spray.

Growth form: Crustose

Substrata: rocks

Photobiont: Trentepohlia

Reproductive strategy: mainly sexual

In underhangs rarely wetted by rain

Taxon bound to maritime-coastal situations

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: absent

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: absent

Humid mediterranean belt: very rare

Dry mediterranean belt: absent

pH of the substrata:

1

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5

(info)

Solar irradiation:

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(info)

Aridity:

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(info)

Eutrophication:

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(info)

Poleotolerance:

0

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(info)

Altitudinal distribution:

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(info)

Predictive model

Index Fungorum GBIF