ITALIC 8.0

Protoparmeliopsis graeca (J.Steiner) Sipman & Cl. Roux

in Nimis, The Lichens of Italy. A Second Annotated Catalogue: 20, 2016. Basionym: Lecanora graeca J. Steiner - Verh. zool.-bot. Ges. Wien, 69: 80, 1919.

Synonyms:

Distribution: C - Abr (Nimis & Tretiach 1999).

Description: Thallus crustose-placodioid, episubstratic, areolate in central parts, brownish green to yellowish green, the central areoles often pruinose and with a bluish hue along the margins, forming up to 4(-5) cm wide rosettes. Lobes 0.5-2 mm wide, 2-5 mm long, rigid, often transversally cracked, contiguous to overlapping, flat to slightly convex. Lower surface black. Cortex 15-50 μm thick; medulla white, with many crystals. Apothecia lecanorine, 0.6-1 mm across, adnate to sessile, with a flat to slightly convex, brown, epruinose disc, and a rather thin, smooth, often blackened thalline margin. Epithecium brown; hymenium colourless, 60-80 μm high, partially inspersed with oil droplets, I+ blue; paraphyses coherent, mostly simple, not capitate; hypothecium colourless. Asci 8-spored, elongate-clavate, very thin-walled, with a K/I+ blue, tall tholus penetrated by a faintly amyloid apical cushion, the wall K/I-, surrounded by a K/I+ blue outer layer, Lecanora-type. Ascospores 1-celled, hyaline, ellipsoid, 9-13(-15) x 5-8 μm. Photobiont chlorococcoid. Spot tests: cortex K- or K+ yellow turning red, C-, KC-, P-; medulla P+ yellow. Chemistry: cortex with usnic acid, sometimes with additional norstictic acid; medulla with psoromic acid.

Note: hitherto known only from the eastern Mediterranean, the Maritime Alps of France, and the central Apennines, this lichen occurring on base rich or slightly calciferous siliceous rocks is worthy of further study.

Growth form: Crustose placodiomorph

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Poorly known taxon in need of further study

Commonnes-rarity: (info)

Alpine belt: extremely rare

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: absent

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: absent

Humid mediterranean belt: absent

Dry mediterranean belt: absent

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

4

5

(info)

Eutrophication:

1

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3

4

5

(info)

Poleotolerance:

0

1

2

3

(info)

Altitudinal distribution:

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6

(info)

Predictive model

Herbarium samples

Index Fungorum GBIF

Harrrie Sipman - source: https://archive.bgbm.org/sipman/Zschackia/AegeanLichens/Protoparmeliopsis.htm

Courtesy: Harrrie Sipman - source: https://archive.bgbm.org/sipman/Zschackia/AegeanLichens/Protoparmeliopsis.htm