ITALIC 8.0

Xanthoparmelia verrucigera (Nyl.) Hale

Smithsonian Contr. Bot., 74: 220, 1990. Basionym: Parmelia verrucigera Nyl. - Flora, 55: 426, 1872.

Synonyms: Parmelia conspersa var. isidiophora Trevis.; Parmelia conspersa var. lusitana (Nyl.) Lettau; Parmelia conspersa var. verrucigera (Nyl.) Boistel; Parmelia isidiigera f. ligustica Gyeln.; Parmelia lusitana Nyl.; Parmelia pseudoservitiana Gyeln.; Parmelia pulvinaris var. mediterranea Gyeln.; Parmelia servitiana Gyeln.; Parmelia tarpatakensis Gyeln.; Xanthoparmelia lusitana (Nyl.) Krog

Distribution: N - VG (Giordani & al. 2002b), Frl (Giordani & al. 2002b), Ven (Giordani & al. 2002b), Lomb (Favero-Longo & al. 2023), VA (Matteucci & al. 2015c), Lig (Giordani & al. 2002b, 2009). C - Tosc (Giordani & al. 2002b), Sar (Giordani & al. 2002b, Rizzi & al. 2011). S - Camp (Giordani & al. 2002b), Bas (Giordani & al. 2002b).

Description: Thallus foliose, heteromerous, dorsiventral, adnate to loosely adnate, forming up to 10 cm wide rosettes. Lobes elongate, flat to slightly convex, separate to weakly imbricate,1-3 mm wide, yellow-green, smooth, shiny, epruinose and emaculate, densely covered in cylindrical, mostly coralloid, branched isidia. Lower surface black, with simple to furcate, black rhizines. Upper cortex paraplectenchymatous, of anticlinally arranged hyphae or of isodiametrical cells, with a pored epicortex, the cell walls with Xanthoparmelia-type lichenan; medulla white; lower cortex paraplectenchymatous. Apothecia rare, lecanorine, substipitate, 3-7 mm across, with a brown, epruinose disc, and an isidiate thalline margin. Epithecium brown; hymenium and hypothecium colourless; paraphyses simple; hypothecium colourless. Asci 8-spored, clavate, the K/I+ blue tholus penetrated by a faintly amyloid apical cushion with parallel or diverging flanks, the wall K/I-, surrounded by a K/I+ blue outer layer, Lecanora-type. Ascospores 1-celled, hyaline, ellipsoid, 6-10 x 4-6 µm. Pycnidia immersed, black. Photobiont chlorococcoid. Spot tests: upper cortex K-, C-, KC+ yellowish, P-; medulla K+ persistently yellow, C-, KC-, P+ orange, UV-. Chemistry: upper cortex with usnic acid (major); medulla with stictic, lusitanic and verrucigeric acids.

Note: on siliceous rocks; related to X. conspersa, but chemically different (stictic and lusitanic acids, lacking norstictic acid).

Growth form: Foliose, broad lobed

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly asexual, by isidia, or isidia-like structures (e.g. schizidia)

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: absent

Submediterranean belt: very rare

Padanian area: absent

Humid submediterranean belt: absent

Humid mediterranean belt: rare

Dry mediterranean belt: absent

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

2

3

4

5

6

(info)

Predictive model

Herbarium samples

Index Fungorum GBIF

Harrie Sipman – Source http://www.bgbm.fu-berlin.de/sipman/Zschackia/AegeanLichens/CaloplacaAC.htm - As Caloplaca oasis

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (7653)
2002/02/13

P.L. Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (7491)
2002/02/13
isidia

Manuel Gil

Spain, Canary Islands, Tenerife

Manuel Gil

Spain, Canary Islands, Tenerife