Callome multipartita (Sm.) Otálora, P.M. Jørg. & Wedin

Fungal Divers. (online version), 64: 282, 2013. Basionym: Collema multipartitum Sm. in Smith & Sowerby - Engl. Bot.: 36, tab. 2582, 1814.
Synonyms: Collema multipartiens Nyl.; Lathagrium muelleri (Hepp) Arnold; Lathagrium multipartitum (Sm.) Kremp.; Lathagrium turgidum (Körb.) A. Massal.; Parmelia turgida (“Ach.”) Schaer. non Collema turgidum Ach.; Synechoblastus multipartitus (Sm.) Körb.
Distribution: N - VG, Frl (Tretiach & Molaro 2007), Ven, TAA (Nascimbene 2008b), Lomb, Piem (Isocrono & al. 2004), Emil (Fariselli & al. 2020), Lig. C - Tosc, Laz, Abr, Mol (Nimis & Tretiach 1999, Caporale & al. 2008), Sar. S - Camp (Aprile & al. 2003b, Nimis & Tretiach 2004, Garofalo & al. 2010), Pugl, Cal (Puntillo 1996), Si (Nimis & al. 1996b).
Description: Thallus small-foliose, homoiomerous, gelatinous when wet, forming rosettes to 5 cm diam. Lobes adpressed, linear, usually convex, dull, dark olive-brown to black, often minutely striated, repeatedly dichotomously branched, radiating, 0.5-1.5 mm broad, much swelling when wet (to 350 µm thick), not pubescent. Isidia absent. Lower surface usually paler, with tufts of white hapters. Upper and lower cortices absent. Apothecia frequent, sessile, 1-2 mm across, with a flat, brown-black disc, and a usually thin, crenulate thalline margin. Proper exciple thin, paraplectenchymatous; hymenium brownish in upper part, otherwise colourless. Asci 8-spored, narrowly clavate, the apex thick, with a I+ blue apical dome and a I+ blue annulus projecting downwardly. Ascospores 3-4-septate, hyaline, fusiform, often curved at maturity, 25-45 x 5-6 µm. Pycnidia usually laminal, immersed, globose, pale with dark apex. Conidia bacilliform, straight, slightly swollen at ends, 5-7 x 1-1.5 µm. Photobiont cyanobacterial (Nostoc), in chains. Spot tests: all negative. Chemistry: without lichen substances.
Note: a mainly temperate to southern boreal-montane species found on calcareous rocks in rather sheltered situations; widespread, but never common.
Growth form: Foliose, narrow lobed
Substrata: rocks
Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

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


pH of the substrata:

(info)

1

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5

Solar irradiation:

(info)

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5

Aridity:

(info)

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4

5

Eutrophication:

(info)

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4

5

Poleotolerance:

(info)

0

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Altitudinal distribution:

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5




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



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (5738)
2001/12/04
detail of pycnidia



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (5738)
2001/12/04



Andrea Moro; Owner: Department of Life Sciences, University of Trieste
italy, Friuli Venezia Giulia, Trieste, Trieste Karst near Borgo Grotta Gigante
16/02/2017



Andrea Moro; Owner: Department of Life Sciences, University of Trieste
italy, Friuli Venezia Giulia, Trieste, Trieste Karst near Borgo Grotta Gigante
16/02/2017



Andrea Moro; Owner: Department of Life Sciences, University of Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017



Andrea Moro; Owner: Department of Life Sciences, University of Triedte
Italy, Friuli Venezia Giulia, Trieste, Trieste Karst, Rocca di Monrupino
20/02/2017



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern



Juri Nascimbene - CC BY-SA 4.0
Italy, Trentino-Alto Adige, Bolzano/Bozen, Sciliar/Schlern


Leif Stridvall
Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/


Leif Stridvall
Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/


Leif Stridvall
Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/


Leif Stridvall
Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/


Leif Stridvall
Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/


Leif Stridvall
Courtesy: Anita Stridvall -Source: http://www.stridvall.se/lichens/gallery/


Degelius G. 1954. The lichen genus Collema in Europe: Morphology, Taxonomy, Ecology. Symbolae Bot. Upsal. 13, 2: 1-499.