Lecidella tumidula (A. Massal.) Knoph & Leuckert
Bibl. Lichenol., 68: 131, 1997. Basionym: Lecidea tumidula A. Massal. - Ric. Auton. Lich. Crost.: 71, fig. 137, 1852
Synonyms:
Description: Thallus crustose, episubstratic, more or less continuous to rimose-granulose, 0.6-1 mm thick, white, greenish yellow or whitish grey, sometimes delimited by a pale to dark prothallus. Apothecia lecideine, black, semi-immersed to sessile, slightly to strongly constricted at base, 0.8-1.2 mm across, with a flat to finally convex, epruinose disc and a c. 0.075 mm thick, finally often excluded proper margin. Proper exciple bluish to greenish black in outer part, yellowish to reddish brown within, without crystals; epithecium green, blackish green to bluish green; hymenium colourless, 50-90 µm high, not inspersed with oil droplets; paraphyses easily made free in K, mostly simple, rarely sparingly branched and anastomosing, the apical cells not to slightly thickened; hypothecium reddish brown to rarely yellowish brown. Asci 8-spored, clavate, with an intensely K/I+ blue tholus penetrated by a faintly amyloid, broadly cylindrical axial mass, and a poorly developed ocular chamber, the wall K/I-, surrounded by a K/I+ blue outer layer, approaching the Lecanora-type. Ascospores 1-celled, hyaline, broadly ellipsoid to ovoid, 9-14 x 5.5-7.5 µm, thick-walled, not halonate. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: diploicin and lichexanthone.
Growth form: Crustose
Substrata: bark
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Poorly known taxon in need of further study
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: absent
Dry submediterranean belt: extremely rare
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
Einar Timdal, Natural History Museum, University of Oslo, Norway - CC BY-NC
Growth form: Crustose
Substrata: bark
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Poorly known taxon in need of further study
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Montane belt: absent
Dry submediterranean belt: extremely rare
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
