Rhizocarpon ochrolechiae (Poelt & Nimis) Hafellner

Rhizocarpon ochrolechiae (Poelt & Nimis) Hafellner

in Kalb & Hafellner, Herzogia, 9: 86, 1992. Basionym: Rhizocarpon lusitanicum var. ochrolechiae Poelt & Nimis in Nimis & Poelt - Studia Geobot., 7, suppl. 1: 205, 1987.

Synonyms:

Distribution: C - Sar (Brackel 2016).

Description: Thallus crustose, probably not lichenized, endoparasitic in the thalli of Ochrolechia parella, forming 1-3 mm wide, dark grey patches on the thallus of the host. Apothecia lecideine, black, 03-0.9(-1.1) mm across, superficial, adpressed, often confluent, with a convex, rugose disc, soon immarginate. Exciple poorly developed, of conglutinated, parallel hyphae; epithecium purple-brown, granulose, K+ intensely purple; hymenium colourless, c. 150 μm high, I+ blue; hamathecium of strongly conglutinate, richly branched and anastomosing, 3-4 μm thick, apically clavate paraphysoids; hypothecium dark reddish brown, K-. Asci 4-8-spored, clavate, fissitunicate, with a well-developed tholus, lacking an ocular chamber, Rhizocarpon-type. Ascospores submuriform, dark brown, with 5-9 cells in optical view, ellipsoid, (18-)20-35(-40) x (10-)13-17(-19) μm, distinctly halonate. Photobiont absent. Spot tests: thallus K-, C-, KC-, P-. Chemistry: no lichen substances in thallus.

Note: a lichenicolous fungus growing on base-rich siliceous rocks, on the thalli of Ochrolechia parella; related to Rh. lusitanicum, but differing in the absence of a green thallus, perhaps more widespread in Tyrrhenian Italy.

Growth form: Lichenicolous fungus

Substrata: rocks

Reproductive strategy: mainly sexual

Most common in areas with a humid-warm climate (e.g. most of Tyrrenian Italy)

paras Ochrolechia parella

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: absent

Oromediterranean belt: absent

Montane belt: absent

Submediterranean belt: absent

Padanian area: absent

Humid submediterranean belt: absent

Humid mediterranean belt: very rare

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

Felix Schumm; Owner: CC BY-SA 4.0

[TSB_16761], Scotland, Westerness, Ardnamurchan Peninsula, Point of Ardnamurchan, 5-30 m, on Ochrolechia parella. Leg. B. Coppins, P.W. James & J. Poelt, 17.06.1992 (ex GZU)

Felix Schumm; Owner: CC BY-SA 4.0

[TSB_16761], Scotland, Westerness, Ardnamurchan Peninsula, Point of Ardnamurchan, 5-30 m, on Ochrolechia parella. Leg. B. Coppins, P.W. James & J. Poelt, 17.06.1992 (ex GZU)

Felix Schumm; Owner: CC BY-SA 4.0

[TSB_16761], Scotland, Westerness, Ardnamurchan Peninsula, Point of Ardnamurchan, 5-30 m, on Ochrolechia parella. Leg. B. Coppins, P.W. James & J. Poelt, 17.06.1992 (ex GZU)

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

Herbarium: TSB (16761)
2001/12/01
on the host, Ochrolechia parella

Felix Schumm - CC BY-SA 4.0

[TSB_16761], Scotland, Westerness, Ardnamurchan Peninsula, Point of Ardnamurchan, 5-30 m, on Ochrolechia parella. Leg. B. Coppins, P.W. James & J. Poelt, 17.06.1992 (ex GZU).

Felix Schumm - CC BY-SA 4.0

[TSB_16761], Scotland, Westerness, Ardnamurchan Peninsula, Point of Ardnamurchan, 5-30 m, on Ochrolechia parella. Leg. B. Coppins, P.W. James & J. Poelt, 17.06.1992 (ex GZU).

Felix Schumm - CC BY-SA 4.0

[TSB_16761], Scotland, Westerness, Ardnamurchan Peninsula, Point of Ardnamurchan, 5-30 m, on Ochrolechia parella. Leg. B. Coppins, P.W. James & J. Poelt, 17.06.1992 (ex GZU).

Felix Schumm - CC BY-SA 4.0

[TSB_16761], Scotland, Westerness, Ardnamurchan Peninsula, Point of Ardnamurchan, 5-30 m, on Ochrolechia parella. Leg. B. Coppins, P.W. James & J. Poelt, 17.06.1992 (ex GZU).

Felix Schumm - CC BY-SA 4.0

[TSB_16761], Scotland, Westerness, Ardnamurchan Peninsula, Point of Ardnamurchan, 5-30 m, on Ochrolechia parella. Leg. B. Coppins, P.W. James & J. Poelt, 17.06.1992 (ex GZU).

Felix Schumm - CC BY-SA 4.0

[TSB_16761], Scotland, Westerness, Ardnamurchan Peninsula, Point of Ardnamurchan, 5-30 m, on Ochrolechia parella. Leg. B. Coppins, P.W. James & J. Poelt, 17.06.1992 (ex GZU).

Felix Schumm - CC BY-SA 4.0

[TSB_16761], Scotland, Westerness, Ardnamurchan Peninsula, Point of Ardnamurchan, 5-30 m, on Ochrolechia parella. Leg. B. Coppins, P.W. James & J. Poelt, 17.06.1992 (ex GZU).

Felix Schumm - CC BY-SA 4.0

[TSB_16761], Scotland, Westerness, Ardnamurchan Peninsula, Point of Ardnamurchan, 5-30 m, on Ochrolechia parella. Leg. B. Coppins, P.W. James & J. Poelt, 17.06.1992 (ex GZU).

Felix Schumm - CC BY-SA 4.0

[TSB_16761], Scotland, Westerness, Ardnamurchan Peninsula, Point of Ardnamurchan, 5-30 m, on Ochrolechia parella. Leg. B. Coppins, P.W. James & J. Poelt, 17.06.1992 (ex GZU).

Felix Schumm - CC BY-SA 4.0

[TSB_16761], Scotland, Westerness, Ardnamurchan Peninsula, Point of Ardnamurchan, 5-30 m, on Ochrolechia parella. Leg. B. Coppins, P.W. James & J. Poelt, 17.06.1992 (ex GZU).

Felix Schumm - CC BY-SA 4.0

[TSB_16761], Scotland, Westerness, Ardnamurchan Peninsula, Point of Ardnamurchan, 5-30 m, on Ochrolechia parella. Leg. B. Coppins, P.W. James & J. Poelt, 17.06.1992 (ex GZU).

Felix Schumm - CC BY-SA 4.0

[TSB_16761], Scotland, Westerness, Ardnamurchan Peninsula, Point of Ardnamurchan, 5-30 m, on Ochrolechia parella. Leg. B. Coppins, P.W. James & J. Poelt, 17.06.1992 (ex GZU).

Felix Schumm - CC BY-SA 4.0

[TSB_16761], Scotland, Westerness, Ardnamurchan Peninsula, Point of Ardnamurchan, 5-30 m, on Ochrolechia parella. Leg. B. Coppins, P.W. James & J. Poelt, 17.06.1992 (ex GZU).

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