ITALIC 7.0

Biatora flavopunctata (Tønsberg) Hinter. & Printzen

in Hinteregger, Bibl. Lichenol., 55: 86, 1994. Basionym: Lecanora flavopunctata Tønsberg - Sommerfeltia, 14: 162, 1992.

Synonyms:

Distribution: N - Frl (Hinteregger 1994, Printzen 1995, in Austrian terr., near the border), Piem (TSB 33253), Lig.

Description: Thallus crustose, endo- to episubstratic, whitish to greenish grey, greyish green, pale yellow or yellowish grey, forming up to 1.5(-2) cm wide patches, continuous to usually areolate, sorediate, sometimes delimited by a poorly evident, whitish prothallus, the areoles sparse or contiguous, rounded to elongate, flat to convex, up to 0.2(-0.4) mm across, the continuous parts weakly tuberculate, rimose. Soralia central or marginal on areoles or tubercles, pale yellow to greenish yellow, at first well-delimited and punctiform, up to 0.2(-0.3) mm across, later more or less confluent, the soredia farinose, 10-20(-25) μm in diam., with a distinct wall. Apothecia rather rare, biatorine, adnate, up to 0.3(-0.7) mm across, pale brown to flesh-coloured, sometimes with a yellow tinge, slightly convex, without a distinct thalline margin. Proper exciple colourless, of conglutinated, radiating hyphae, without crystals; epithecium straw-coloured to colourless, , with a minutely granular epipsamma dissolving in K; hymenium colourless, 30-45 μm high, with large crystals not dissolving in K, I-; paraphyses coherent, simple to sparingly branched, c. 2 μm thick, the apical cells hardly swollen, up to 3 μm wide; hypothecium colourless to pale yellow, 40-70 μm high, K/I+ blue. Asci 8-spored, clavate, Biatora-type. Ascospores 1-celled to 1-septate, hyaline, mostly narrowly ellipsoid, sometimes slightly curved, 7.5-10.5 x 2.5-4(-5) μm. Photobiont chlorococcoid, the cells 9-12(-18) μm wide. Spot tests: thallus and soralia K+ yellow-orange, C+ yellowish, P-. Chemistry: atranorin, usnic acid, isousnic acid, variable amounts of stictic acid, traces of cryptostictic acid, flavopunctata-unknown (traces), possible traces of other unidentified terpenoids.

Note: a probably boreal-montane species found on twigs of subalpine shrubs, especially Rhododendron ferrugineum; certainly much more widespread in the Alps.

Growth form: Crustose

Substrata: bark

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: rather common

Oromediterranean belt: absent

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

Herbarium samples

Index Fungorum GBIF

Elena Pittao; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB 31416

Elena Pittao; Owner: Department of Life Sciences, University of Trieste

Herbarium: TSB 31416