ITALIC 8.0

Glaucomaria swartzii subsp. nuorensis (Leuckert & Poelt) ined.

provisionally placed here, ICN Art. 36.1b. . Basionym: Lecanora swartzii subsp. nuorensis Leuckert & Poelt - Nova Hedwigia, 49: 164, 1989.

Synonyms:

Distribution: C - Sar. S - Cal.

Description: Thallus crustose, episubstratic, rimose to verrucose-areolate, yellowish green, often delimited by a white, more or less arachnoid prothallus, sometimes subplacodioid. Areoles flat to strongly convex, thick, ecorticate. Apothecia lecanorine, constricted at base to almost stalked, 0.3-1.5 mm across, with a brown or grey-brown, but heavily white- or bluish grey-pruinose, flat to convex disc, and a thin, even, smooth thalline margin, without an inner parathecial ring. Thalline exciple with an algal-free, strongly conglutinate eucortex and a more or less loose medullar plectenchyma in inner parts; proper exciple colourless, containing crystals soluble in K; epithecium brown to dark brown, with crystals, the pigment and the crystals dissolving in K; hymenium colourless; paraphyses slightly thickened at tips; hypothecium colourless. Asci 8-spored, elongate-clavate, very thin-walled, with a K/I+ blue, tall tholus penetrated by a faintly amyloid apical cushion, the wall K/I-, surrounded by a K/I+ blue outer layer, Lecanora-type. Ascospores 1-celled, hyaline, ellipsoid, 9-14 x 6-7.5 µm. Photobiont chlorococcoid. Spot tests: thallus K+ yellow, C+ yellow, KC+ yellow, P+ pale yellow; apothecial disc (pruina) C+ yellow-orange, KC+ orange; apothecial margin C+ orange. Chemistry: thallus with atranorin (major); apothecial margin with thiophanic acid and sordidone.

Note: a chemotype distinguished by the presence of sordidone in the thallus, and thiophanic acid in the apothecial margin, known from the high Mediterranean mountains, on steeply inclined or rain-sheltered surfaces of siliceous rocks, with optimum near and above treeline.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: rare

Montane belt: very 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