Calogaya schistidii (Anzi) Arup, Frödén & Søchting

in Arup & al., Nord. J. Bot., 31: 39, 2013. Basionym: Gyalolechia schistidii Anzi - Cat. Lich. Sondr.: 38, 1860.
Synonyms: Caloplaca schistidii (Anzi) Zahlbr.; Candelariella schistidii (Anzi) Lettau; Fulgensia schistidii (Anzi) Poelt; Lecidea luteoalba var. muscicola sensu Schaer.
Distribution: N - Ven (Caniglia & al. 1999, Nascimbene 2008c), TAA, Lomb, Piem, VA (Piervittori & Isocrono 1999), Emil (Tretiach & al. 2008, Fariselli & al. 2020). C - Tosc (Benesperi 2006), Marc (Nimis & Tretiach 1999), Umb (Nimis & Tretiach 1999, Ravera & al. 2006), Abr (Nimis & Tretiach 1999, Gheza & al. 2021), Mol (Nimis & Tretiach, 1999, 2004, Caporale & al. 2008, Brackel 2020), Sar. S - Camp (Aprile & al. 2002, 2003b, Nimis & Tretiach 2004), Bas (Nimis & Tretiach 1999), Cal (Puntillo 1996), Si (Brackel 2008b).
Description: Thallus crustose-subsquamulose, episubstratic, forming irregular patches 0.5-6(-12) mm in diam., orange-yellow, epruinose. Areoles/squamules lobulate, often reduced to a thalline rim around the apothecia, mostly flat, 0.l-0.9 mm in diam., 90-230 μm thick. Upper cortex 10-55 μm thick, with a yellowish-orange outer layer and a colourless inner layer, scleroplectenchymatous with irregularly arranged hyphae, lacking crystals; algal layer continuous or clustered; medulla white, poorly developed, very loose. Apothecia zeorine, 0.2-2.4 mm across, rounded or slightly deformed by mutual compression, sessile, with a flat, yellow to bright orange, epruinose, smooth disc and a paler, persistent proper margin; thalline margin 50-180(-200) μm wide, smooth, sometimes hidden at the base of apothecia. Proper exciple 60-150 μm wide, formed by radially arranged hyphae, sclero-prosoplectenchymatous; epithecium brownish-orange, K+ red; hymenium colourless, 60- 87.5 μm high; paraphyses sparingly branched in upper part, (1.5-)2-3(-4) μm wide at base, with 1-3 swollen apical cells to 5.5 μm wide; hypothecium colourless, sclero-prosoplectenchymatous, underlain by a continuous algal layer. Asci 8-spored, clavate, Teloschistes-type. Ascospores 1-septate, polarilocular, hyaline, narrowly ellipsoid to subcylindrical, (13.8-)15-18(-20) x (4-)5-7.5 μm, the septum (0.5-)0.8-1.2(-1.5) μm thick. Photobiont chlorococcoid. Spot tests: thallus and apothecia K+ red, C-, KC-, P-. Chemistry: thallus and apothecia with parietin, fallacinal, emodin, and teloschistin.
Note: on pulvinate epilithic mosses (especially Grimmia anomodon and Schistidium apocarpum) over calcareous substrata, most common in upland areas.
Growth form: Crustose
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

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


pH of the substrata:

(info)

1

2

3

4

5

Solar irradiation:

(info)

1

2

3

4

5

Aridity:

(info)

1

2

3

4

5

Eutrophication:

(info)

1

2

3

4

5

Poleotolerance:

(info)

0

1

2

3

Altitudinal distribution:

(info)

1

2

3

4

5





P.L. Nimis CC BY-SA 4.0
TSB 37877



Pier Luigi Nimis - CC BY-SA 4.0
TSB 40952



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (34910)
2002/02/21



Pier Luigi Nimis - CC BY-SA 4.0
TSB 40952



Pier Luigi Nimis - CC BY-SA 4.0
TSB 37877



Pier Luigi Nimis - CC BY-SA 4.0
TSB 40952



Pier Luigi Nimis - CC BY-SA 4.0
TSB 37877



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (13428)
2001/11/24



P.L. Nimis CC BY-SA 4.0
TSB 41233



P.L. Nimis CC BY-SA 4.0
TSB 41236



P.L. Nimis CC BY-SA 4.0
TSB 41233



P.L. Nimis CC BY-SA 4.0
TSB 41233



P.L. Nimis CC BY-SA 4.0
TSB 41234



P.L. Nimis CC BY-SA 4.0
TSB 41233



Pier Luigi Nimis - CC BY-SA 4.0; Owner: Department of Life Sciences, University of Trieste
TSB 38005