ITALIC 7.0

Teloschistes flavicans (Sw.) Norman

Nytt Mag. Naturvid., 7: 229, 1853. Basionym: Lichen flavicans Sw. - Nov. Gen. Sp. Pl.: 147, 1788.

Synonyms: Borrera flavicans (Sw.) Ach.; Tornabenia flavicans (Sw.) A. Massal.

Distribution: C - Sar. S - Si (Nimis & al. 1994, Ottonello & Romano 1997, Ottonello & Puntillo 2009, Ottonello & al. 2011).

Description: Thallus fruticose, attached by a basal holdfast, almost filamentous, up to 12 cm long, tufted to pendent, more or less dichotomously and richly branched. Branches corticated, rigid, entangled, up to 2 mm wide, narrowing to 0.05-0.2 mm at the tips, terete to angular or somewhat flattened (especially the main ones) yellow-orange to reddish orange, with farinose to granular, yellow soredia in orbicular to elongated, at least at the beginning raised soralia; fibrils and hairs absent or scarce. Cortex of longitudinally arranged hyphae; medulla interrupted by cortical strands. Apothecia extremely rare, lecanorine, 1-4 mm across, with an orange disc and a thin, usually smooth, rarely sparingly ciliate thalline margin. Epithecium orange, K+ red; hymenium and hypothecium colourless. Asci 8-spored, Teloschistes-type. Ascospores 2-celled polarilocular, hyaline, oblong to narrowly ellipsoid, (10-)12-18(-20) x 6-11 µm. Pycnidia immersed to slightly projecting, orange. Conidia bifusiform, 2.7-3.7 x 1-1.5 µm. Photobiont chlorococcoid. Spot tests: thallus and soredia K+ red, C-, KC-, P-, UV+ intensely orange-red. Chemistry: anthraquinones such as parietin (major), teloschistin, fallacinal, and parietinic acid (all minor).

Note: a tropical to Mediterranean-Atlantic lichen found on branches, bryophytes and siliceous rocks in a few warm-humid stands of Tyrrhenian Italy, mostly near the coast in areas with frequent fog. It is included in the Italian red list of epiphytic lichens as “Endangered” (Nascimbene & al. 2013c).

Growth form: Fruticose

Substrata: bark

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Restricted to humid-warm, oceanic areas

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: extremely 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

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3

4

5

6

(info)

Predictive model

Herbarium samples

Index Fungorum GBIF

Enrico Banfi

Costa Rica

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

Herbarium: TSB (16076)
2001/12/11
soralia

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

Herbarium: TSB (16076)
2001/12/11

Felix Schumm – CC BY-SA 4.0

Image from: F. Schumm (2008) - Flechten Madeiras, der Kanaren und Azoren. Beck, OHG - ISBN: 978-3-00-023700-3

Leif Stridvall

Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/

Nere Sorrentino

Spain, Canary Islands, Tenerife

Nere Sorrentino

Spain, Canary Islands, Tenerife

Nere Sorrentino

Spain, Canary Islands, Tenerife

Nere Sorrentino

Spain, Canary Islands, Tenerife

Nere Sorrentino

Spain, Canary Islands, Tenerife

Nere Sorrentino

Spain, Canary Islands, Tenerife

Nere Sorrentino

Spain, Canary Islands, Tenerife

Nere Sorrentino

Spain

Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php

Enrico Banfi

Costa Rica

Ulrich Kirschbaum

Spain; Canary Islands: La Gomera.