Lichinella nigritella (Lettau) P.P. Moreno & Egea
Cryptogamie, Bryol.-Lichénol., 13: 246, 1992. Basionym: Thyrea nigritella Lettau - Beih. Repert. Spec. Nov. Regni Veg., 119: 276, 1942.
Synonyms: Gonohymenia nigritella (Lettau) Henssen; Thallinocarpon nigritellum (Lettau) P.M. Jørg.
Description: Thallus small-foliose to squamulose-umbilicate, polyphyllous, gelatinous when wet, forming regular to irregular, up to 3 cm wide cushions, black, dull to glossy, very rarely with patches of grey pruina, soon covered in minute, globose 0.1-0.3 µm wide isidia, densely lobulate, the lobules at first adpressed, but soon ascending to erect in central parts of thallus, 1-2 mm wide at base and 3-4 mm wide at tips, broadly rounded at first but soon divided, with ascending, thicker margins; lower surface attached by a central holdfast. Thallus 0.2-0.4 µm thick, the outer part 50-70 µm thick, formed by short-celled, mainly anticlinally oriented hyphae enclosing the photobiont cells, the medullary part of loosely to densely arranged (forming a 50-100 µm thick compact strand), 1-2 µm thick hyphae with cylindrical cells, lacking photobionts. Apothecia thallinocarps, hemiangiocarpous, the ascogonia arising freely beneath the thallus surface, rare, marginal to apical, 0.3-0.6 mm across, immersed and difficult to recognize unless when wet, with a rough disc and an up to 50 µm wide, indistinct thalline margin. Proper exciple absent; hymenium 110-150 µm high, separated into partial hymenia by intrusions of wedge-shaped, sterile thalline tissue, covered by a continuous layer of sterile tissue separated by the pore-like discs of the partial hymenia, K/I+ blue turning wine-red; subhymenium hyaline, continuous, 50(-100) µm thick, K/I+ blue. Asci 16-24-spored, subcylindrical to obclavate, prototunicate, with a thin, one-layered, non-amyloid wall, an amyloid external apical cap, and passive spore discharge via apical rupturing, Lichina-type. Ascospores 1-celled, hyaline, broadly ellipsoid, 6-8 x 3-4 µm. Pycnidia rare, globose, immersed. Conidia ellipsoid, 4-5 x 1.5 µm. Photobiont cyanobacterial, chroococcoid, th cells single, measuring 6-12 x 6-10 µm, penetrated by haustoria and surrounded by a brownish gelatinous sheath. Spot tests: all negative. Chemistry: without lichen substances.
Growth form: Fruticose
Substrata: rocks
Photobiont: cyanobacteria, coccaceous (e.g. Gloeocapsa)
Reproductive strategy: mainly sexual
On otherwise dry surfaces with short periods of water seepage after rain
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: very rare
Dry submediterranean belt: rather rare
Humid submediterranean belt: rare
Padanian area: extremely rare
pH of the substrata:
1 2 3 4 5
Solar irradiation:
1 2 3 4 5
Aridity:
1 2 3 4 5
Eutrophication:
1 2 3 4 5
Poleotolerance:
0 1 2 3
Altitudinal distribution:
1 2 3 4 5 6
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
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Occurrence data
Predictive map
Manuel Gil
Spain, Canary Islands , Lanzarote
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (8273)
2002/01/02
isidia
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (17383)
2001/12/09
Pier Luigi Nimis
Italy, Friuli Venezia Giulia, Trieste, Trieste Coast, near Tenda Rossa
07.2016
Pier Luigi Nimis
Italy, Friuli Venezia Giulia, Trieste, Trieste Coast, near Tenda Rossa
07.2016
Pier Luigi Nimis
Italy, Friuli Venezia Giulia, Trieste, Trieste Coast, near Tenda Rossa
07.2016
Pier Luigi Nimis
Italy, Friuli Venezia Giulia, Trieste, Trieste Coast, near Tenda Rossa
07.2016
Pier Luigi Nimis; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Trieste, Trieste Coast near Tenda Rossa, on a wall of calciferous sandstone
07/2016
Curtis Randall Björk – CC BY-SA 4.0
British Columbia, South Okanagan, Elkink/Sparrow Grasslands Date: 2014-06-07 On rock in sagebrush steppe
Growth form: Fruticose
Substrata: rocks
Photobiont: cyanobacteria, coccaceous (e.g. Gloeocapsa)
Reproductive strategy: mainly sexual
On otherwise dry surfaces with short periods of water seepage after rain
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: very rare
Dry submediterranean belt: rather rare
Humid submediterranean belt: rare
Padanian area: extremely rare
pH of the substrata:
| 1 | 2 | 3 | 4 | 5 |
Solar irradiation:
| 1 | 2 | 3 | 4 | 5 |
Aridity:
| 1 | 2 | 3 | 4 | 5 |
Eutrophication:
| 1 | 2 | 3 | 4 | 5 |
Poleotolerance:
| 0 | 1 | 2 | 3 |
Altitudinal distribution:
| 1 | 2 | 3 | 4 | 5 | 6 |
Rarity
absent
extremely rare
very rare
rare
rather rare
rather common
common
very common
extremely common
Loading data...
Occurrence data
Predictive map
Manuel Gil
Spain, Canary Islands , Lanzarote
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (8273)
2002/01/02
isidia
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (17383)
2001/12/09
Pier Luigi Nimis
Italy, Friuli Venezia Giulia, Trieste, Trieste Coast, near Tenda Rossa
07.2016
Pier Luigi Nimis
Italy, Friuli Venezia Giulia, Trieste, Trieste Coast, near Tenda Rossa
07.2016
Pier Luigi Nimis
Italy, Friuli Venezia Giulia, Trieste, Trieste Coast, near Tenda Rossa
07.2016
Pier Luigi Nimis
Italy, Friuli Venezia Giulia, Trieste, Trieste Coast, near Tenda Rossa
07.2016
Pier Luigi Nimis; Owner: Department of Life Sciences, University of Trieste
Italy, Friuli Venezia Giulia, Trieste, Trieste Coast near Tenda Rossa, on a wall of calciferous sandstone
07/2016
