Sporodictyon schaererianum A. Massal.
Flora, 35: 326, 1852.
Synonyms: Lecanora atra var. verrucoso-areolata Schaer.; Polyblastia schaereriana (A. Massal.) Müll. Arg.; Polyblastia subpyrenophora (Leight.) Zschacke; Polyblastia theleodes auct. non (Sommerf.) Th. Fr.; Verrucaria subpyrenophora Leight.; Verrucaria theleodes Sommerf. var. contigua Sommerf.
Description: Thallus crustose, episubstratic, well-developed, often consisting of c. 0.2-0.8 mm wide, at first subglobose, then sublobulate warts, pale grey to pale brown; cephalodia frequent, dark brown to black, forming flattened, irregular, granular, up to 1.5 mm wide aggregations. Perithecia black, forming (0.45-)0.7-0.9(-1.2) mm wide projections, irregularly and often incompletely covered by a thalline layer. Involucrellum 55-130 μm thick, strongly thickened around the often distinctly depressed ostiole, in the upper part merged with exciple, in the lowermost part diverging; hamathecium of periphyses and periphysoids, interascal filaments absent; hymenial gel hemiamyloid, I+ red (I+ blue at very low concentrations of I), K/I+ blue. Asci 8-spored, clavate, K/I-, fissitunicate, the wall thickened above, with an ocular chamber, dehiscent by extrusion of an endotunica to form a delicate rostrum. Ascospores muriform, dark brown when mature, the cell outlines often obscured, ellipsoid or often somewhat asymmetric, slightly curved with one end slightly wider, 59-73 x 31-41 μm. Photobiont chlorococcoid, Nostoc in the cephalodia. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: rather rare
Subalpine belt: rare
Montane belt: extremely rare
Dry submediterranean belt: absent
Humid submediterranean belt: absent
Padanian area: absent
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
Curtis Randall Björk CC BY-SA 4.0
British Columbia, Clearwater Valley Date: 2010-11-03 On basalt cliff in waterfall sprayzone, in deep ravine in mixed conifer-deciduous forest; an uncertain species identification
Curtis Randall Björk CC BY-SA 4.0
British Columbia, Clearwater Valley Date: 2010-11-03 On basalt cliff in waterfall sprayzone, in deep ravine in mixed conifer-deciduous forest;
an uncertain species identification
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (28454)
2003/03/12
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (28456)
2003/03/12
Source: Zschacke H. 1914. Die mitteleuropäsche Verrucariaceen. II. Hedwigia, 55: 286-324. Public Domain
30. P. subpyrenophora Orig.: a Perithezium, b Spore.
Source: Zschacke H. 1914. Die mitteleuropäsche Verrucariaceen. II. Hedwigia, 55: 286-324. Public Domain
30. P. subpyrenophora Orig.: a Perithezium, b Spore.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Commonnes-rarity: (info)
Alpine belt: rather rare
Subalpine belt: rare
Montane belt: extremely rare
Dry submediterranean belt: absent
Humid submediterranean belt: absent
Padanian area: absent
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
Curtis Randall Björk CC BY-SA 4.0
British Columbia, Clearwater Valley Date: 2010-11-03 On basalt cliff in waterfall sprayzone, in deep ravine in mixed conifer-deciduous forest; an uncertain species identification
Curtis Randall Björk CC BY-SA 4.0
British Columbia, Clearwater Valley Date: 2010-11-03 On basalt cliff in waterfall sprayzone, in deep ravine in mixed conifer-deciduous forest;
an uncertain species identification
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (28454)
2003/03/12
P.L. Nimis; Owner: Department of Life Sciences, University of Trieste
Herbarium: TSB (28456)
2003/03/12
Source: Zschacke H. 1914. Die mitteleuropäsche Verrucariaceen. II. Hedwigia, 55: 286-324. Public Domain
30. P. subpyrenophora Orig.: a Perithezium, b Spore.
