Calogaya saxicola (Hoffm.) Vondrák
in Vondrák & al., Lichenologist 48: 178, 2016.. Basionym: Psora saxicola Hoffm. - Descr. Adumb. Plant. Lich. 1, 3: 82, 1790.
Synonyms:
Description: Thallus crustose-placodioid, episubstratic, forming orbicular, up to 8 mm wide rosettes, ochraceous yellow to orange, epruinose. Central part of thallus with convex, 0.3-0.6 mm wide areoles which are rarely visible, the thallus center being covered by crowded apothecia; marginal lobes highly reduced, sometimes hardly visible, strongly convex, 0.3-0.8(-1) mm long and (0.1-)0.2-0.8(-1) mm wide. Upper cortex well developed, (15-)20-80 μm thick, with a 5-30 μm thick orange upper layer, and a hyaline lower layer with irregularly arranged hyphae. Apothecia lecanorine to zeorine, sometimes pseudolecanorine, abundant, 0.2-2.5(-4) mm diam., usually deformed by mutual compression, forming clusters on the lobe bases and areoles, at first immersed, then sessile and basally constricted, with a concave to convex, orange to reddish-orange, epruinose, smooth disc and a margin which in some cases is clearly differentiated in an orange, 30- 50 μm thick proper margin and a 40-150(-200) μm thick, usually persistent and often prominent thalline margin. Epithecium (6.5-)10-14 μm thick, brownish-yellow, K+ purple-red; hymenium colourless, 50-30(-92) μm high; paraphyses septate, sparingly branched in upper part, (1.5-)2-3(-4.5) μm wide at base, the apical cells (2.5-)3- 7.7(-8.5) μm wide; 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 1-septate, polarilocular, hyaline, narrowly ellipsoid, (9-)11-14.5(-18.5) x (4-)5.8-6.5(-7.5) μm, the equatorial thickening ("septum") (1.5-)3.4-4.5(-5) μm. Photobiont chlorococcoid. Spot tests: thallus and apothecia K+ purple-red, C-, KC-, P-. Chemistry: thallus and apothecia with parietin (major), fallacinal, emodin, teloschistin and parietinic acid (minor), corresponding with chemosyndrome A of Søchting (1997).
Growth form: Crustose placodiomorph
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Poorly known taxon in need of further study
Commonnes-rarity: (info)
Alpine belt: very rare
Subalpine belt: very rare
Montane belt: rare
Dry submediterranean belt: very rare
Humid submediterranean belt: very rare
Padanian area: absent
pH of the substrata:
1 2 3 4 5
Solar irradiation:
1 2 3 4 5
Aridity:
1 2 3 4 5
Eutrophication:
1 2 3 4 5
Poleotolerance:
0 1 2 3
Altitudinal distribution:
1 2 3 4 5 6
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
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Occurrence data
Predictive map

Curtis Randall Björk – CC BY-SA 4.0
British Columbia, Thompson Plateau, Kamloops area, Mt. Mara On calc-modified siliceous cliff in grassland 2012-11-01

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=268&lang=en
Belgium, Floreffe

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=268&lang=en
Belgium, Floreffe

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=268&lang=en
Belgium, Floreffe

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=268&lang=en
Belgium, Floreffe
Growth form: Crustose placodiomorph
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Poorly known taxon in need of further study
Commonnes-rarity: (info)
Alpine belt: very rare
Subalpine belt: very rare
Montane belt: rare
Dry submediterranean belt: very rare
Humid submediterranean belt: very rare
Padanian area: absent
pH of the substrata:
1 | 2 | 3 | 4 | 5 |
Solar irradiation:
1 | 2 | 3 | 4 | 5 |
Aridity:
1 | 2 | 3 | 4 | 5 |
Eutrophication:
1 | 2 | 3 | 4 | 5 |
Poleotolerance:
0 | 1 | 2 | 3 |
Altitudinal distribution:
1 | 2 | 3 | 4 | 5 | 6 |
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
Loading data...
Occurrence data
Predictive map

Curtis Randall Björk – CC BY-SA 4.0
British Columbia, Thompson Plateau, Kamloops area, Mt. Mara On calc-modified siliceous cliff in grassland 2012-11-01

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=268&lang=en
Belgium, Floreffe

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=268&lang=en
Belgium, Floreffe

Jacques Haine - Source: http://www.lichensmaritimes.org/index.php?task=fiche&lichen=268&lang=en
Belgium, Floreffe
