Calicium lenticulare Ach.

K. Vetensk.-Akad. Handl.: 262, 1816.
Synonyms: Calicium amylocaule Lettau; Calicium atroviride Körb.; Calicium cladoniscum auct.; Calicium lenticulare var. cladoniscum auct. non Schaer.; Calicium quercinum var. lenticulare (Ach.) Nyl.; Calicium schaereri sensu Nádv. non De Not.; Calicium subquercinum Asahina; Calicium virescens (Schaer.) Hepp
Distribution: N - Frl (Puntillo & Puntillo 2009), Ven (Puntillo & Puntillo 2009), TAA (Nascimbene & al. 2007b, Puntillo & Puntillo 2009, Nimis & al. 2015), Lomb (Puntillo & Puntillo 2009), Piem (Isocrono & al. 2004, Puntillo & Puntillo 2009), Emil Puntillo & Puntillo 2009, Fariselli & al. 2020), Lig (Puntillo & Puntillo 2009). C - Tosc (Puntillo & Puntillo 2009). S- Camp (Garofalo & al. 2010).
Description: Thallus crustose, endosubstratic and poorly evident or more often episubstratic and granular-verrucose, greenish to yellowish grey with a bluish tinge. Apothecia long-stalked, pin-like, epruinose or with a whitish pruina on the lower side of capitulum. Stalk black to dark reddish brown, 0.5-1.3 mm high, of sclerotized, dark, irregularly interwoven hyphae, in section distinctly reddish brown, sometimes with strands of granular crystals, the outer layer covered with a very thin, transparent, non-amyloid gelatinous sheath. Capitulum narrowly obconical to lenticular, with a well-developed, cup-shaped exciple of intertwined, sclerotized hyphae; mazaedium well developed, black; hypothecium blackish brown, with a convex upper surface. Asci narrowly clavate to cylindrical, formed singly, dissolving early, with partly 2-seriate ascospores. Ascospores first simple, then (when released from asci) 1-septate, dark brown, broadly ellipsoid to ellipsoid, (9-)11-12 x (4-)6-7 µm, with a thick, minutely verrucose to areolate wall. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-; ascomata I+ deep blue to black in all parts. Chemistry: thallus with no lichen substances or with placodiolic and sometimes 4-O-methyhypoprotocetraric acids.
Note: a mainly cool-temperate to boreal-montane, circumpolar species found on lignum of decorticated stumps and trunks of conifers in upland areas. It is included in the Italian red list of epiphytic lichens as “Critically Endangered” (Nascimbene & al. 2013c).
Growth form: Crustose
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
In underhangs rarely wetted by rain

Commonnes-rarity: (info)

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


pH of the substrata:

(info)

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5

Solar irradiation:

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5

Aridity:

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5

Eutrophication:

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5

Poleotolerance:

(info)

0

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Altitudinal distribution:

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P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (5970)
2001/12/05



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (9352)
2001/12/05



E. Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (3682)
2008.03.10



E. Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (3682)
2008.03.10



E. Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (3682)
2008.03.10



E. Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (3682)
2008.03.10



E. Pittao; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (3682)
2008.03.10


Felix Schumm- CC BY-SA 4.0
[17164], Brasilien, São Paulo, zwischen São Laurenço und Juquií etwa 65 km W von São Sebastião, am Rio Guaratuba, in einer Mangrove aus Rhizophora mangle und Laguncularia racemosa, an abgestorbenen Bäumen, 1 m, 23°47' S, 45°44' W. Leg. K. Kalb, 19.02.1980, det. L. Tibell. KALB: LICHENES NEOTROPICI 489.


Felix Schumm- CC BY-SA 4.0
[17221], Brasilien, Minas Gerais, Serra do Espinhaço, Serra do Caraça, unterhalb des Klosters Caraça (Hauptsammelgebiet von Vainio im Jahr 1885). An Rinde in einem hellen, feuchten Wäldchen, 1200 m, 20°10' S, 43°30' W. Leg. K. Kalb & G. Plöbst, 08.07.1978, det. L. Tibell,1987. KALB: LICHENES NEOTROPICI 583



E. Pittao CC BY-SA 04
TSB 30931