ITALIC 8.0

Xanthocarpia tominii (Savicz) Frödén, Arup & Søchting

in Arup & al., Nordic J. Bot., 31, 1: 57, 2013.. Basionym: Caloplaca tominii Savicz - Izv. glav. bot. Sada SSSR: 194, 1949.

Synonyms:

Distribution:

Description: Thallus crustose-subsquamulose, episubstratic, yellow to yellow-orange, consisting of small, 0.5-1.5(-4) mm wide, often sublobulate, flat to usually convex, sorediate areoles. Soralia yellow, marginal or laminal, often developing on the upraised margins of the areoles, with 0.04-0.08 mm wide soredia. Cortex paraplectenchymatous, 15-35 µm thick; medulla poorly developed, paraplectenchymatous. Apothecia rare, 0.3-0.7(-1) mm across, with an orange to orange-brown disc, a sorediate thalline margin concolorous with thallus and a thin, paler proper margin. Proper exciple of radiating hyphae; epithecium orange-brown, K+ red; hymenium colourless, 60-70 μm high; paraphyses branched, the apical cells swollen; hypothecium colourless. Asci 8-spored, clavate, functionally unitunicate, apically thickened with a broad internal beak, the inner part of apex and external cap I+ blue, Teloschistes-type. Ascospores 2-celled, polarilocular, hyaline, narrowly ellipsoid, 15-18(-20) x 6-8(-10) μm, the equatorial thickening (“septum”) 1.5-3 μm. Photobiont chlorococcoid. Spot tests: thallus and apothecia K+ red, C-, KC-, P-. Chemistry: parietin, fallacinal, emodin, and teloschistin.

Note: an incompletely circumboreal species of bare, more or less calciferous mineral soil in steppe-like environments, reported also from the Alps, but outside the Italian territory; to be looked for especially in the xerothermic Alpine valleys.

Growth form: Crustose

Substrata: soil, terricolous mosses, and plant debris

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: extremely rare

Oromediterranean belt: absent

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

Index Fungorum GBIF

Felix Schumm - CC BY-SA 4.0

[19608], Canada, Southern Yukon regio, Kluane National Park, in monte Sheep, alt 800 m, ad terram humosam loessaceam (Artemisio- Agropyretum yukonensis). Leg. P.L. Nimis, 08.07.1983. ZDA: LICH. SEL. EXS. 1993.

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

Herbarium: TSB (9171)
2001/12/07

Felix Schumm - CC BY-SA 4.0

[19406], USA, Idaho, Wwyhee Co., along US 95 at McBridge Creek, 45 km SW of Nampa, along roadside in hills with sage and bare ground, 43°16'50'' N, 116°59'33'' W, 1250 m. Leg. C.M. Wetmore (No. 95127), 20 July 2006. TELOSCHIST. EXS. 93

Felix Schumm - CC BY-SA 4.0

[19406], USA, Idaho, Wwyhee Co., along US 95 at McBridge Creek, 45 km SW of Nampa, along roadside in hills with sage and bare ground, 43°16'50'' N, 116°59'33'' W, 1250 m. Leg. C.M. Wetmore (No. 95127), 20 July 2006. TELOSCHIST. EXS. 93

Felix Schumm - CC BY-SA 4.0

[19406], USA, Idaho, Wwyhee Co., along US 95 at McBridge Creek, 45 km SW of Nampa, along roadside in hills with sage and bare ground, 43°16'50'' N, 116°59'33'' W, 1250 m. Leg. C.M. Wetmore (No. 95127), 20 July 2006. TELOSCHIST. EXS. 93

Felix Schumm - CC BY-SA 4.0

[19608], Canada, Southern Yukon regio, Kluane National Park, in monte Sheep, alt 800 m, ad terram humosam loessaceam (Artemisio- Agropyretum yukonensis). Leg. P.L. Nimis, 08.07.1983. ZDA: LICH. SEL. EXS. 1993.