ITALIC 8.0

Miriquidica pulvinatula (Arnold) Hertel & Rambold

Mitt. bot. Staatss. München, 23: 389, 1987. Basionym: Lecidella pulvinatula Arnold - Verh. zool.-bot. Ges. Wien, 29: 382, 1879.

Synonyms: Lecidea circumnigrata H. Magn.; Lecidea pulvinatula (Arnold) Dalla Torre & Sarnth.

Distribution: N - TAA.

Description: Thallus crustose, episubstratic, dirty white, pale grey or beige, thin, rimose-areolate, forming small, up to 1 cm wide patches, the areoles small, up to 0.5 mm wide, flat, developing on a black hypothallus. Medulla white, I-. Apothecia lecideine, small, 0.3-0.5 mm across, broadly adnate to sessile, constricted at base, with a black disc and a slightly paler proper margin. Proper exciple blue-green in outer part, the hyphae somewhat cellular-radiate, colourless within; epithecium greenish black; hymenium colourless, 40-50(-55) μm high, I+ dark blue; paraphyses coherent, mostly simple, c. 2 μm thick at mid-level, the apical cells slightly swollen; hypothecium colourless, I+ blue. 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, 8-13 x (3-)4.5-5 μm. Photobiont chlorococcoid. Spot tests: cortex and medulla K-, C-, KC-, P-. Chemistry: miriquidic acid.

Note: on iron-rich crystalline rocks near and above treeline; closely related to M. leucophaea.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Species of metal-rich rocks

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

Einar Timdal - Source: http://nhm2.uio.no/lav/web/index.html - CC BY-NC