ITALIC 8.0

Rinodina cana (Arnold) Arnold

Verh. zool.-bot. Ges. Wien, 30: 125, 1880. Basionym: Rinodina arenaria var. cana Arnold - Flora, 55: 289, 1872.

Synonyms:

Distribution: N - TAA, Piem (TSB 34548).

Description: Thallus crustose, episubstratic, rimose-areolate, grey to ochraceous brown, sometimes delimited by a dark prothallus, the areoles contiguous, flat, often brownish to greenish and N+ purple at margins and on lower side. Apothecia aspicilioid, immersed in the areoles, 0.2-0.4(-0.7) mm across, with a concave to flat, brown to black, often faintly grey-pruinose disc, and a thin, persistent thalline margin. Epithecium orange-brown to dark brown, with an epipsamma of small crystals dissolving in K; hymenium colourless, 90-110 µm high; paraphyses c. 1.5 µm thick at mid-level, the apical cells 3-5 µm wide, with a brown cap; hypothecium colourless, up to 150 µm high. 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-septate, brown, ellipsoid, (16-)18-22(-24) x 9-12(-13.5) µm, Milvina-type grading into the Pachysporaria-type, with a poorly developed torus, the ontogeny of type A(apical wall thickening after septum formation). Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-. Chemistry: without lichen substances.

Note: on steeply inclined surfaces of weakly calcareous schists and basic siliceous rocks, most frequent in dry-warm areas; certainly overlooked and more frequent, at least in the Alps, mostly below treeline.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: rare

Oromediterranean belt: absent

Montane belt: rare

Submediterranean belt: very rare

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

Herbarium samples

Index Fungorum GBIF

P.L. Nimis CC BY-SA 4.0

TSB 34548

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

Herbarium: TSB (21833)
2001/11/29