Lepra trachythallina (Erichsen) Lendemer & R.C. Harris
Bryologist 120: 187, 2017.
Synonyms: Pertusaria laevigata (Nyl.) Arnold non (Th. Fr.) Anzi; Pertusaria trachythallina Erichsen; Variolaria trachythallina
Description: Thallus crustose endosubstratic to thinly episubstratic, whitish to grey, continuous, smooth or uneven, the margins not zoned. Apothecia lecanorine, immersed in soralia-like, 0.5-1(-2) mm wide thalline warts which are constricted at base and sometimes subglobose, 1-3 per wart, with a to 2 mm wide, pink, reddish or rarely finally black, granular, bluish-pruinose disc surrounded by a usually persistent thalline rim. Asci (1-)2-spored, the apex without a distinct ocular chamber, the outer sheath K/I+ blue, otherwise K/I–, with an inner extensible layer, Pertusaria-type. Ascospores often not well-developed, 1-celled, hyaline, ellipsoid, (38-)50-160 x (18-)25-60 µm, the wall 5-7 µm thick. Photobiont chlorococcoid. Spot tests: K+ yellow, C-, KC-, P+ yellow-orange. Chemistry: thamnolic acid; lichexanthone reported from some North American specimens.
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: very 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
New York, Lake Placid area, Heart Lake Photographed from specimen (Goward 82-38, UBC), on trunk Betula in open, Abies balsamea-Picea forest on ridge
1982-03-08
Curtis Randall Björk – CC BY-SA 4.0
New York, Lake Placid area, Heart Lake Date: 1982-03-08 Photographed from specimen (Goward 82-38, UBC), on trunk Betula in open, Abies balsamea-Picea forest on ridge
Felix Schumm - CC BY-SA 4.0
[16735], USA, Wisconsin, Oneida County: Roadside, mixed hardwood-
conifer forest in Patterson Hemlocks State Natural Area, 1.2
miles south of state route 70, T.39N, R.4E, sec. 3, 45°53'49-51'' N,
89°58'28'' W, ca. 1,500 ft. elevation, on trunk of roadside birch (Betula
sp.). Leg. John G. Guccion 29 April 2002 (No. 736). - Spores 2/Ascus,
uniseriate, 120 x 37 μm. Thallus K+ gelb, UV-.
Felix Schumm - CC BY-SA 4.0
[16735], USA, Wisconsin, Oneida County: Roadside, mixed hardwood-
conifer forest in Patterson Hemlocks State Natural Area, 1.2
miles south of state route 70, T.39N, R.4E, sec. 3, 45°53'49-51'' N,
89°58'28'' W, ca. 1,500 ft. elevation, on trunk of roadside birch (Betula
sp.). Leg. John G. Guccion 29 April 2002 (No. 736). - Spores 2/Ascus,
uniseriate, 120 x 37 μm. Thallus K+ gelb, UV-.
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: very 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
New York, Lake Placid area, Heart Lake Photographed from specimen (Goward 82-38, UBC), on trunk Betula in open, Abies balsamea-Picea forest on ridge
1982-03-08
Curtis Randall Björk – CC BY-SA 4.0
New York, Lake Placid area, Heart Lake Date: 1982-03-08 Photographed from specimen (Goward 82-38, UBC), on trunk Betula in open, Abies balsamea-Picea forest on ridge
Felix Schumm - CC BY-SA 4.0
[16735], USA, Wisconsin, Oneida County: Roadside, mixed hardwood- conifer forest in Patterson Hemlocks State Natural Area, 1.2 miles south of state route 70, T.39N, R.4E, sec. 3, 45°53'49-51'' N, 89°58'28'' W, ca. 1,500 ft. elevation, on trunk of roadside birch (Betula sp.). Leg. John G. Guccion 29 April 2002 (No. 736). - Spores 2/Ascus, uniseriate, 120 x 37 μm. Thallus K+ gelb, UV-.
