ITALIC 8.0

Lecidea swartzioidea Nyl.

Not. Sällsk. Fauna Fl. Fenn. Förh., 4: 240, 1859.

Synonyms: Lecidea arnoldiana Dalla Torre & Sarnth.; Lecidea gneissacea Zahlbr.; Lecidea jemtlandensis H. Magn.; Lecidea lapicida var. swartzioidea (Nyl.) Nyl.; Lecidea lithophiloides Müll. Arg. non Nyl.; Lecidea metamorpha Anzi; Lecidea swartzioidea var. lithophiloides (Müll. Arg.) Clauzade & Cl. Roux; Lecidea vogesiaca Schaer.

Distribution: N - Frl, TAA, Lomb, Piem (Morisi & Sereno 1995), Lig. C - Sar (Nöske 2000).

Description: Thallus crustose, episubstratic, rather thin, rimose-areolate, grey-white, the areoles angular, mostly flattened. Cortex without a distinct epinecral layer; medulla white, I+ blue-violet. Apothecia lecideine, 0.5-1.5 mm across, black but sometimes pruinose, at first semi-immersed, then adnate, with a flat to slightly convex disc, and a raised, usually persistent proper margin. Proper exciple black-brown in outer part, colourless within; epithecium greenish brown, N+ purple; hymenium colourless, 50-75 µm high, I+ blue; paraphyses not very coherent; hypothecium dark reddish brown to blackish brown. Ąsci 8-spored, clavate, Lecidea-type. Ascospores 1-celled, hyaline, ellipsoid 12-14 x 4-6 µm. Photobiont chlorococcoid. Spot tests: thallus and especially medulla K+ yellow turning blood-red (needle-like crystals), C-, KC-, P+ bright orange. Chemistry: thallus with the norstictic acid syndrome.

Note: a circumpolar, arctic-alpine to boreal-montane lichen of siliceous rocks (Hertel 2006) most common near and above treeline: closely related to L. lapicida and doubtfully worthy of being separated from it as a distinct species.

Growth form: Crustose

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: common

Subalpine belt: rather common

Oromediterranean belt: rare

Montane belt: absent

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

P.L. Nimis CC BY-SA 4.0

TSB 21101

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

Herbarium: TSB (24616)
2003/03/12

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

Herbarium: TSB (21101)
2003/03/12

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecidea_swartzioidea_sw.htm

France, Mont Chouvé, 1462 m - Puy-de-Dôme
23/8/2013

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecidea_swartzioidea_sw.htm

France, Mont Chouvé, 1462 m - Puy-de-Dôme
23/8/2013

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecidea_swartzioidea_sw.htm

France, Mont Chouvé, 1462 m - Puy-de-Dôme
23/8/2013

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecidea_swartzioidea_sw.htm

France, Mont Chouvé, 1462 m - Puy-de-Dôme
23/8/2013

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecidea_swartzioidea_sw.htm

France, Mont Chouvé, 1462 m - Puy-de-Dôme
23/8/2013