Lecanoropsis subintricata (Nyl.) Ivanovich & Printzen

in Ivanovich & al., Phytotaxa, 695, 1: 45, 2025. Basionym: Lecanora varia var. subintricata Nyl. - Flora, 51: 478, 1868.
Synonyms: Lecanora subintricata (Nyl.) Th. Fr.; Lecanora varia var. atrocinerea Schaer.
Distribution: N - Frl, TAA (Hinteregger 1994, Nascimbene & al. 2006e, 2007b, 2022, van den Boom & Brand 2008), Lomb (van den Boom & Brand 2008), Piem (Isocrono & al. 2004), VA (Borlandelli & al. 1996, Piervittori & Isocrono 1997, 1999), Lig (Giordani & Incerti 2008). C - Sar (TSB 13282). S - Camp (Aprile & al. 2002), Cal (Puntillo 1996).
Description: Thallus crustose, mostly endosubstratic, poorly developed or of dispersed thin warts, whitish grey to grey with or without a yellow hue, rarely brown or dark brown, forming up to several cm wide patches, the areoles (when developed) rounded to slightly deformed, 0.1-0.3 mm wide, moderately to strongly convex, ecorticate. Apothecia at first more or less lecanorine, then biatorine, 0.2-0.6 mm across, rounded, sessile and constricted at base, with a pale yellow or greyish yellow/ochre to brown or dark grey, rarely finely white-pruinose, flat to slightly convex disc, the margin initially strongly prominent and concolorous with thallus, finally sometimes more or less excluded or concolorous with disc. Thalline exciple corticate, 40-85(-150) µm wide laterally, not much wider at base, with many algal cells, the cortex (19-)25-50(-58) µm wide laterally, (19-)29-48(-59) µm wide at base; proper exciple poorly developed and mostly indistinct, 10-30 µm wide, brownish in the outer part, which is filled with granules; epithecium colourless to spotted yellow-brown or faint brown, sometimes with greenish spots, with fine and larger yellowish granules soluble in K, the pigmented parts N+ red-brown; hymenium colourless, with orange-brown granules, (30-)35-45(-50) µm high; paraphyses simple or sparingly branched and anastomosing, 1.5-2 µm thick at mid-level, the apical cells 2-3.5 µm wide, the apical gel sheath 2.5-3.5 μm wide; hypothecium colourless or pale yellow, (35-)50-145(-175) µm high. Asci 8-spored, clavate, very thin-walled, with a K/I+ blue, tall tholus penetrated by a faintly amyloid apical cushion, the wall K/I-, surrounded by a blue outer layer, Lecanora-type. Ascospores 1-celled, hyaline, narrowly ellipsoid to ellipsoid, (5-)6-10(-12) x (2.5-)3-4(-6) µm. Micropycnidia rare; microconidia bacilliform, 6-7 x 1.1.5 µm. Mesopycnidia common, black in upper half, sessile; mesoconidia ellipsoid to short cylindrical, 2.8-3.4 x c. 2-2.5 µm. Photobiont chlorococcoid. Spot tests: thallus K- or K+ pale yellow, C-, KC+ yellow, P-. Chemistry: thallus with usnic acid (major), rarely isousnic acid or brialmontin1 (minor); apothecia with a mixture of the Cinereorufa-green and Superba-brown pigments.
Note: a circumboreal-montane lichen found on lignum and, more rarely, on the bark of conifers in upland areas. For further details see Printzen (2001) and van den Boom & Brand (2008) and Ivanovich & al. (2025).
Growth form: Crustose
Substrata: bark and lignum
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

Alpine belt: absent
Subalpine belt: common
Oromediterranean belt: absent
Montane belt: rare
Submediterranean belt: absent
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

Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecanora_subintricata.htmhttps://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecanora_subintricata.htm
France, Corte : gorges de la Restonica, bergeries de Grottelle, au-dessus du parking, alt. 1440 m, sur vieux tronc couché de Pinus laricio
9/10/2014


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecanora_subintricata.htmhttps://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecanora_subintricata.htm
France, Corte : gorges de la Restonica, bergeries de Grottelle, au-dessus du parking, alt. 1440 m, sur vieux tronc couché de Pinus laricio
9/10/2014


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecanora_subintricata.htmhttps://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecanora_subintricata.htm
France, Corte : gorges de la Restonica, bergeries de Grottelle, au-dessus du parking, alt. 1440 m, sur vieux tronc couché de Pinus laricio
9/10/2014


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecanora_subintricata.htmhttps://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecanora_subintricata.htm
France, Corte : gorges de la Restonica, bergeries de Grottelle, au-dessus du parking, alt. 1440 m, sur vieux tronc couché de Pinus laricio
9/10/2014


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecanora_subintricata.htmhttps://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecanora_subintricata.htm
France, Corte : gorges de la Restonica, bergeries de Grottelle, au-dessus du parking, alt. 1440 m, sur vieux tronc couché de Pinus laricio
9/10/2014


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecanora_subintricata.htmhttps://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecanora_subintricata.htm
France, Corte : gorges de la Restonica, bergeries de Grottelle, au-dessus du parking, alt. 1440 m, sur vieux tronc couché de Pinus laricio
9/10/2014


Courtesy Danièle et Olivier Gonnet - Source: https://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecanora_subintricata.htmhttps://www.afl-lichenologie.fr/Photos_AFL/Photos_AFL_L/Texte_L_4/Lecanora_subintricata.htm
France, Corte : gorges de la Restonica, bergeries de Grottelle, au-dessus du parking, alt. 1440 m, sur vieux tronc couché de Pinus laricio
9/10/2014


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



Curtis Randall Björk
Canada, British Columbia, Clearwater Valley