ITALIC 8.0

Rinodina luridata (Körb.) H. Mayrhofer, Scheid. & Sheard

Bibl. Lichenol., 38: 346, 1990. Basionym: Buellia luridata Körb. - Parerga Lichenol.: 188, 1860.

Synonyms: Kudratovia luridata (Körb.) S.Y. Kondr., Lőkös & Hur; Rinodina euryspora Zahlbr.; Rinodina iodes H. Mayrhofer & Poelt; Rinodina iodes var. immersa H. Mayrhofer & Cl. Roux

Distribution: S - Bas, Cal.

Description: Thallus crustose, quite variable, continuous and endosubstratic or thinly episubstratic and rimose-areolate, whitish, ochraceous or pale brown,the areoles thin, flat, smooth, without a distinct prothallus. Apothecia lecanorine to rarely pseudolecanorine, 0.3-0.5(-0.6) mm across, immersed in the rock to subsessile, with a concave to slightly convex, dark brown to black, at first often whitish-grey-pruinose disc, a thin, entire, persistent to partly excluded thalline margin, and a rather thick, entire, persistent proper margin. Thalline exciple (40-)60-120 µm wide, corticate; proper exciple 10-15 µm wide laterally; epithecium red-brown; hymenium colourless, 70-90(-100) µm high; paraphyses 2-3.5 µm thick at mid-level, the apical cells 4-6 µm wide, with a dark cap; hypothecium colourless to pale yellow, 70-100 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, broadly ellipsoid, (10-)11-14(-15) x (6.5-)8.5-9(-11) µm, Bicincta-type, the outer wall not ornamented, thickened at septum and apices in young spores, the lumina soon rounded, with a pigmented band around each cell, with ontogeny of type A (apical wall thickening after septum formation). Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: thallus with zeorin.

Note: on sun-exposed calcareous outcrops in upland areas; certainly present also in the Alps.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: extremely rare

Subalpine belt: very rare

Oromediterranean belt: rare

Montane belt: rare

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

S. Poumarat http://mycologie.catalogne.free.fr/lichens.htm

S. Poumarat - Source: http://mycologie.catalogne.free.fr/lichens.htm