ITALIC 7.0

Waynea giraltiae van den Boom

Lichenologist, 42: 30, 2010

Synonyms:

Distribution: S - Si (Ravera & al. 2018).

Description: Thallus minutely squamulose, greenish grey, yellowish brown or medium brown, dull, the squamules scattered to crowded, often aggregated in patches, flat to slightly convex, contiguous to ascending and imbricate, 0.1-0.5 mm wide, the largest ones often incised, esorediate, finely tomentose, the tomentum hardly visible with a hand-lens, consisting of hyaline hyphae protruding from cortex. Upper cortex prosoplectenchymatous, 25-35 μm thick, without crystals; medulla white, of loosely interwoven hyphae with rectangular cells; lower cortex absent. Apothecia biatorine, adpressed to sessile, grey, dark brown or black, often piebald, epruinose, 0.2-0.9 mm across, with a concave to flat disc, and a concolorous, at first thick, then less evident proper margin. Proper exciple colourless or violet-grey in upper part, prosoplectenchymatous, the pigmented parts K+ violet; epithecium colourless to pale olivaceous or violet grey, the pigmented parts K+ violet, N+ purple; hymenium colourless, 35-50 μm high; paraphyses coherent, simple or sparingly furcate in upper part, 2-2.5 μm thick at mid-level, the apical cells up to 5 μm wide, surrounded by a thin, pigmented, gelatinous matrix; hypothecium colourless, subtended by an algal layer. Asci 8-spored, clavate, distinctly thickened at apex, with an I+ blue tholus, the outer gelatinous coat I+ pale blue, Bacidia to Biatora-type. Ascospores (1-)3-septate, hyaline, fusiform, 12-18 x 2-2.5 μm. Pycnidia rare, immersed, colourless or pale brown in upper part, 35-50 μm across. Conidia filiform, strongly curved, 20-29 x c. 0.5 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P+ orange-red. Chemistry: thallus with argopsin; exciple and epithecium with the Sedifolia-grey pigment.

Note: a species known from the Iberian Peninsula (Spain, Portugal), growing on old oaks at low altitudes. The only Italian record is from Mt. Etna, at 1500 m, on Quercus congesta.

Growth form: Squamulose

Substrata: bark

Photobiont: green algae other than Trentepohlia

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: absent

Humid mediterranean belt: extremely rare

Dry mediterranean belt: extremely rare

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

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4

5

6

(info)

Predictive model

Index Fungorum GBIF