ITALIC 8.0

Allantoparmelia alpicola (Th. Fr.) Essl.

Mycotaxon, 7: 46, 1978. Basionym: Parmelia alpicola Th. Fr. - N. Acta Reg. Soc. Sci. Upsal., ser. 3, 3: 57, 1861.

Synonyms: Hypogymnia alpicola (Th. Fr.) Hav.; Parmelia encausta var. alpicola (Th. Fr.) Nyl.; Parmelia jinretienii Gyeln.; Parmelia nigrita (Flot.) Hillmann

Distribution: N - TAA, Lomb.

Description: Thallus foliose, heteromerous, dorsiventral, closely adnate, forming regular or irregular up to to 6(-8) cm wide rosettes, several thalli often merging to cover larger surfaces. Lobes 0.2-0.8(-1) mm wide, flattened to convex, often torulose-nodulose, with a crenulate margin. Upper surface blackish brown, greyish black or brown, somewhat paler in shade-forms, dull or shiny towards margins; lower surface black, browned at lobe tips, erhizinate, attached by irregular cortical outgrowths (and hence sometimes appearing almost crustose). Upper cortex prosoplectenchymatous, with a non-pored epicortex, the cell walls containing isolichenan; medulla white, compact; lower cortex similar to the upper one. Apothecia common, lecanorine, 3-4(-5) mm across, with a dark brown to black disc and a usually smooth thalline margin. Epithecium brown; hymenium and 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, broadly ellipsoid to subglobose, 7-10 x 5-7 μm. Pycnidia common, immersed, black. Conidia bifusiform or thickened at one end, 4.5-6 x c. 1 μm. Photobiont chlorococcoid. Spot tests: upper cortex K-, C-, KC-, P-; medulla K+ pale yellow, C+ red, KC+ red, P+ yellow, UV-. Chemistry: medulla with alectorialic and barbatolic acids.

Note: an arctic-alpine, circumpolar species found on hard siliceous rocks, often on quartz, in wind-exposed ridges near or above treeline, restricted to the Alps in Italy.

Growth form: Foliose, broad lobed

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: very rare

Subalpine belt: extremely rare

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

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

Leif Stridvall Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Curtis Randall Björk – CC BY-SA 4.0

Nunavut, Barrenlands tundra, near Hackett River On siliceous rock in tundra 2012-08-01

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Pier Luigi Nimis - CC BY-SA 4.0

TSB 41411