Lepra trachythallina (Erichsen) Lendemer & R.C. Harris
Bryologist 120: 187, 2017.
Synonyms: Pertusaria laevigata (Nyl.) Arnold non (Th. Fr.) Anzi; Variolaria trachythallina
Distribution: N - TAA.
Description: Thallus crustose endosubstratic to thinly episubstratic, whitish to grey, continuous, smooth or uneven, 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, white-pruinose disc. Asci (1-)2-spored. Ascospores often not well-developed, 1-celled, hyaline, ellipsoid, (38-)50-160 x 18-58 µm, the wall 5-7 µm thick. Photobiont chlorococcoid. Spot tests: thallus and/or medulla K+ yellow, C-, KC-, P+ yellow-orange. Chemistry: thamnolic acid.
Note: a cool-temperate, perhaps circumpolar lichen found on smooth bark of deciduous trees, especially Fagus, in humid montane forests. It is included as “Regionally Exctinct” in the Italian red list of epiphytic lichens (Nascimbene & al. 2013c).
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
Oromediterranean belt: absent
Montane belt: very rare
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent
Predictive model
Herbarium samples
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
LITERATURE
Breuss, O/ John, V (2004) New and interesting records of lichens from Turkey. Osterreichische Zeitschrift fur Pilzkunde
Lendemer, J.C./ Harris, R.C. (2017) Nomenclatural changes for North American members of the Variolaria-group necessitated by the recognition of Lepra (Pertusariales). The Bryologist https://www.nhm2.uio.no/botanisk/lav/RLL/PDF/R39065.pdf
Deduke, C./ Arsenault, A./ Pasiche-Lisboa, C.J./ McMullin, R.T. (2019) Survey of the lichen-forming ascomycetes collected during the 2018 NL foray. Omphalina
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
Oromediterranean belt: absent
Montane belt: very rare
Submediterranean belt: absent
Padanian area: absent
Humid submediterranean belt: absent
Humid mediterranean belt: absent
Dry mediterranean belt: absent
Predictive model
| Herbarium samples |
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
LITERATURE
Breuss, O/ John, V (2004) New and interesting records of lichens from Turkey. Osterreichische Zeitschrift fur Pilzkunde
Lendemer, J.C./ Harris, R.C. (2017) Nomenclatural changes for North American members of the Variolaria-group necessitated by the recognition of Lepra (Pertusariales). The Bryologist https://www.nhm2.uio.no/botanisk/lav/RLL/PDF/R39065.pdf
Deduke, C./ Arsenault, A./ Pasiche-Lisboa, C.J./ McMullin, R.T. (2019) Survey of the lichen-forming ascomycetes collected during the 2018 NL foray. Omphalina
