Lempholemma polyanthes (Bernh.) Malme

Sched. ad Lich. Suec. Exs.: nr. 883, 1924. Basionym: Collema polyanthes Bernh. - J. Bot., 1: 12, 1799.
Synonyms: Collema chalazanellum Nyl.; Collema myriococcum (Ach.) Ach.; Lempholemma chalazanellum (Nyl.) Zahlbr.; Lempholemma chalazanodes (Nyl.) Zahlbr.; Lempholemma compactum (Wallr.) Körb.; Lempholemma fasciculare (Wulfen) Zahlbr.; Lempholemma muelleri (Hepp) Zahlbr.?; Lempholemma myriococcum (Ach.) Th. Fr.; Physma chalazanellum (Nyl.) Erichsen; Physma compactum (Wallr.) A. Massal.; Physma muelleri Hepp; Physma myriococcum (Ach.) Körb.; Physma polyanthes (Bernh.) Arnold
Distribution: N - Frl (Molaro 2005, Tretiach & Molaro 2007, Brackel 2013), Ven, TAA, Lomb (Anzi 1860), Piem (TSB 34033). S - Tosc, Umb (Genovesi & al. 2002, Ravera & al. 2006), Sar. S - Camp (Nimis & Tretiach 2004), Cal.
Description: Thallus subfoliose to subcrustose, membranous, rather loosely attached by rhizohyphae, gelatinous when wet (resembling a free-living Nostoc), dark olivaceous brown to black, up to 5 cm wide. Lobes 1-2(-3) mm broad, elongate, flattened, wrinkled to granulose, sometimes fenestrate, ecorticate on both sides. Apothecia frequent and usually numerous, developing from pycnidia, often crowded on thallus folds or lobe margins, immersed in the thallus, 0.2-0.4(-0.5) mm across, with an initially punctiform, then expanded, yellowish brown to brown, flat to concave, smooth disc. Proper exciple very thin, of parallel hyphae; epithecium brownish; hymenium and hypothecium colourless, the hymenium I+ reddish brown, K/I+ blue; paraphyses mostly simple, cogerent, not apically thickened. Asci 8-spored, cylindrical, prototunicate, without a distinct apical apparatum. Ascospores 1-celled, hyaline, globose to broadly ellipsoid, (7-)9-17(-20) x 7-13(-15) µm, with a gelatinous epispore. Pycnidia common, dark, immersed, narrowly pyriform to ovoid. Conidia simple, hyaline, bacilliform, 2-3 x 0.5-1 μm. Photobiont cyanobacterial (Nostoc, in chains) ), the individual cells 4-5 μm wide. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Note: a cool-temperate to arctic-alpine, circumpolar lichen found on terricolous or epilithic bryophytes, over soil or on plant debris, sometimes on walls; much overlooked or confused with Collema s.lat.-species, and probably more widespread.
Growth form: Crustose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)
Reproductive strategy: mainly sexual

Commonnes-rarity: (info)

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


P.L. Nimis CC BY-SA 04
TSB 31994



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (31994)
2001/12/08



P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (31994)
2001/12/08



Curtis Randall Björk, - CC BY-SA 4.0
Near Hope Bay, Nunavut, Northwest Territories, Canadaries, CanadaIsland, British Columbia, Canada
19.07.2014



Curtis Randall Björk – CC BY-SA 4.0
Clearwater Valley, BC, First Canyon Uplands Date: 2011-05-05 On cliffs of pillow basalt on south-facing slope, dry, lightly forested



Pier Luigi Nimis - CC BY-SA 4.0
TSB 31994



Pier Luigi Nimis - CC BY-SA 4.0
TSB 31994



Pier Luigi Nimis - CC BY-SA 4.0
TSB 34033



Pier Luigi Nimis - CC BY-SA 4.0
TSB 34033



Pier Luigi Nimis - CC BY-SA 4.0
TSB 34033



Pier Luigi Nimis - CC BY-SA 4.0
TSB 34033



Pier Luigi Nimis - CC BY-SA 4.0
TSB 34033



Pier Luigi Nimis - CC BY-SA 4.0
TSB 34033



Pier Luigi Nimis - CC BY-SA 4.0
TSB 34033