Gyalolechia canariensis (Follmann & Poelt) Søchting, Frödén & Arup

in Arup & al., Nord. J. Bot., 31: 70, 2013. Basionym: Fulgensia canariensis Follmann & Poelt - Philippia, 4/5: 372, 1981.
Synonyms: Caloplaca canariensis (Follmann & Poelt) Breuss
Distribution: C - Sar.
Description: Thallus crustose, episubstratic, orange-yellow, areolate; areoles angular or sometimes sublobulate, convex, contiguous, the surface smooth, corticate, the cortical cells strongly gelatinized, irregularly arranged, with up to 2 µm wide and up to 15 µm long, tubular lumina, overlain by a colourless, 15-20 µm thick epinecral layer; lower surface attached to the substrate by long hyphal strands. Algal layer continuous. Apothecia zeorine, sessile, up to 1.5 mm across, with a dark orange to orange-brown, flat, smooth, disc and a thin, orange-yellow margin. Thalline exciple finally limited to the basal part of apothecia; proper exciple of radiating hyphae with moderately thick walls and long and narrow lumina; epithecium orange-brown, K+ red; hymenium colourless; paraphyses simple or sparingly branched, 1-2 µm thick at mid-level, the apical cells slightly thicker. Asci 8-spored, clavate, Teloschistes-type. Ascospores 1-septate, not clearly polarilocular but the septum often incomplete, hyaline, pyriform, 12-17 x 5-7.5 µm. Pycnidia orange-yellow, immersed. Conidia bacilliform. Photobiont chlorococcoid. . Spot tests: thallus and apothecia K+ red, C-, KC-, P-. Chemistry: thallus and apothecia with anthraquinones, plus caloploicin, vicanicin and isofulgidin.
Note: a xeric subtropical lichen found on base-rich clay soil in clearings of grasslands and shrublands, common in Macaronesia and also known from North Africa; in Europe only known from a single station in central Sardegna (Gennargentu Massif near Desulo).
Growth form: Crustose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: absent
Submediterranean belt: extremely rare
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent

pH of the substrata:

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Solar irradiation:

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Aridity:

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Eutrophication:

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Poleotolerance:

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Altitudinal distribution:

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Predictive model
Herbarium samples


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



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (18200)
2001/11/24



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



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



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