ITALIC 8.0

Xanthoparmelia pokornyi (Körb.) O. Blanco, A. Crespo, Elix, D. Hawksw. & Lumbsch

Taxon, 53: 970, 2004. Basionym: Imbricaria pokornyi Körb. in Pokorny - Verh. zool.-bot. Ges. Wien, 10: 285, 1860.

Synonyms: Neofuscelia pokornyi (Körb.) Essl.; Parmelia pokornyi (Körb.) Szatala; Parmelia pulla var. pokornyi (Körb.) Türk & Breuss

Distribution: C - Sar (HAL-3087).

Description: Thallus foliose to apparently subfruticose, heteromerous, dorsiventral, very loosely attached, consisting of ascending, often intricately tangled, forked, convex, 1-2(-3) mm wide lobes, usually not forming regular rosettes. Upper surface olive-brown to brown-black, glossy, weakly maculate at tips; lower surface black, usually canaliculate, with a few simple, black rhizines. Upper cortex brown, paraplectenchymatous, with a pored epicortex, the cell walls with Xanthoparmelia-type lichenan; medulla white; lower cortex paraplectenchymatous. Apothecia rare, lecanorine, sessile to stipitate, to 5 mm across, with a brown disc and a smooth 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, 8-11 x 4-7 µm. Pycnidia immersed. Conidia weakly dumbbell-shaped. Photobiont chlorococcoid. Spot tests: upper cortex K-, C-, KC-, P-, N+ blue-green; medulla K-, C-, KC-, or C+ and KC+ pink to red, P-, UV-. Chemistry: medulla with stenosporic acid (major), divaricatic, perlatolic, demethylstenosporic, and oxostenosporic acids (minor/traces), sometimes with gyrophoric acid (major).

Note: a mainly terricolous species of steppe-like habitats, closely related to X. pulla. The Italian sample was collected by B. Feige at Monte Linas.

Growth form: Foliose, broad lobed

Substrata: soil, terricolous mosses, and plant debris

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

2

3

4

5

6

(info)

Predictive model

Index Fungorum GBIF

P.L. Nimis CC BY-SA 04

TSB 31182

Pier Luigi Nimis; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB (31182)