Lepraria borealis Loht. & Tønsberg
Ann. Bot. Fenn., 31: 224, 1994.
Synonyms:
Description: Thallus crustose to subleprose, whitish to whitish grey, up to 0.7 mm thick, entirely consisting in a mass of granules, usually well-delimited, sometimes indistinctly sublobate at margin. The thallus starts developing as isolated, dispersed granules that form piles, or aggregations (best visible along the margins, where the dispersion of the young granules is most readily observed), which eventually overlap and become confluent, giving the false appearance of a continuous thallus in older areas. Granules rather firmly attached, coarse, 60-260(-320) μm in diam., with a compact, pseudocorticate surface, rarely with a few, short projecting hyphae. Medulla absent or very thin. Photobiont chlorococcoid. Spot tests K+ yellow, C-, KC-, P+ yellowish, UV-or UV+ dull pink. Chemistry: atranorin, rangiformic acid (major), norrangiformic acid (traces).
Growth form: Leprose
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)
Commonnes-rarity: (info)
Alpine belt: rather rare
Subalpine belt: rather rare
Montane belt: very rare
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
Leif Stridvall http://www.stridvall.se/la/galleries.php
Author: Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php
Source: Lindblom, L., Blom, H. H. & Arup, U. 2023. Additions to the lichen flora of the Gaupne area – a species hot- spot in Norway. Graphis Scripta 35 (6): 75–80. Oslo. ISSN 2002-4495. - CC BY-4.0
Herbarium photograph of the specimen from Gaupne (Lindblom 1360, O L-
229230, GenBank OP554448). Scale bar = 5 mm. Photo E. Timdal.
Growth form: Leprose
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly asexual, by soredia, or soredia-like structures (e.g. blastidia)
Commonnes-rarity: (info)
Alpine belt: rather rare
Subalpine belt: rather rare
Montane belt: very rare
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
Leif Stridvall http://www.stridvall.se/la/galleries.php
Author: Leif Stridvall - Source: http://www.stridvall.se/la/galleries.php
