ITALIC 8.0

Circinaria bunodea (A. Massal.) ined.

provisionally placed here, ICN Art. 36.1b. . Basionym: Pachyospora bunodea A. Massal. - Symmicta Lich.: 26, 1855.

Synonyms: Aspicilia bunodea (A. Massal.) Maheu & A. Gillet; Lecanora bunodea (A. Massal.) Jatta

Distribution: N - Ven (Lazzarin 2000b).

Description: Thallus crustose, episubstratic, areolate-verrucose, brownish grey, often with a faintly bluish hue, dull. Areoles dispersed, usually regularly round, convex, up to 2.5 mm in diam. Apothecia lecanorine-aspicilioid, 0.3-0.7 mm across, immersed in the areoles and usually occupying most of their surface, round, with a black, but often white-pruinose, concave to flat disc, and a rather thick, raised, white thalline margin. Epithecium olive green to olive-brown, N+ green, K+ brown; hymenium colourless, 100-170 µm high, I+ blue or sometimes partly turning yellow-green; paraphyses submoniliform; hypothecium colourless. Asci (2-)4(-6)-spored, clavate, the thin outer coat K/I+ blue, the wall and apical dome K/I-. Ascospores 1-celled, hyaline, broadly ellipsoid to subglobose, poorly developed. Pycnidia black, immersed. Conidia bacilliform, straight, c. 7 x 0.5 µm. Photobiont chlorococcoid. Spot tests: cortex and medulla K-, C-, KC-, P-. Chemistry: usually with aspicilin, rarely lacking secondary metabolites.

Note: a rather poorly known species of acid siliceous rocks, most probably related to Circinaria contorta (see Roux & coll. 2014).

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Poorly known taxon in need of further study

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

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:

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6

(info)

Predictive model