ITALIC 7.0

Miriquidica complanata (Körb.) Hertel & Rambold

Mitt. bot. Staatss. München, 23: 382, 1987. Basionym: Lecanora complanata Körb. - Parerga Lichenol.: 84-85, 1859.

Synonyms: Aspicilia complanata (Körb.) Stein; Aspicilia microlepis Körb.; Aspicilia superiuscula (Nyl.) Hue; Lecanora coracodes Nyl.; Lecanora kultalensis Vain.; Lecanora microlepis (Körb.) Lettau; Lecanora superiuscula Nyl.; Lecanora tenebricans Nyl.; Lecidea vezdae V. Wirth

Distribution: N - TAA (Nascimbene & al. 2022), Piem (Isocrono & al. 2004), VA (Piervittori & Isocrono 1999). C - Sar (Nöske 2000).

Description: Thallus crustose, episubstratic, continuous to rimose-areolate, pale grey to bluish grey, of (0.3)0.4-1(-1.8) mm wide, rounded or minutely lobed, flat to slightly convex areoles scattered on a black hypothallus. Medulla white, I-. Apothecia lecideine, (0.2-)0.5-0.7(-1) mm across, at first immersed in the areoles then slightly prominent, usually 1 per areole, with a dark brown to black, mostly flat disc, and a very thin, poorly evident and soon excluded proper margin. Proper exciple poorly developed, thin, dark brown to olive-brown in outer part, of radiating hyphae; epithecium brown; hymenium colourless to yellowish, 50-65 µm high, I+ blue; paraphyses sparingly branched and more or less anastomosing, 1.5-2 µm thick at mid-level, the apical cell clavate, 3-4.5 µm wide, with a dark cap; hypothecium colourless, yellowish or grey. Asci 8-spored, clavate, approaching the Lecanora-type, but with a well-developed, weakly amyloid tholus and a relatively narrow, non-amyloid axial mass. Ascospores 1-celled, hyaline, ellipsoid to oblong, (8-)10-16(-18) x (4-)5-6(-7) µm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-. Chemistry: miriquidic acid.

Note: on moist siliceous rocks in upland areas, starting the life-cycle on yellow Rhizocarpon-species, with optimum above treeline. The identification of the samples from Sardinia is dubious.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

paras Rhizocarpon geographicum when young

Commonnes-rarity: (info)

Alpine belt: rare

Subalpine belt: very rare

Oromediterranean belt: extremely rare

Montane belt: extremely 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

Herbarium samples

Index Fungorum GBIF

P.L. Nimis CC BY-SA 4.0

TSB 16753

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

Herbarium: TSB (16753)
2001/11/26