Toniniopsis fusispora (Hepp ex Körb.) Cl. Roux
Catal. Lich. France Métr., 3rd ed., 1: 1290, 2020. Basionym: Raphiospora fusispora Hepp ex Körb. - Parerga Lichenol., 3: 237, 1861
Synonyms:
Distribution:
Description: Thallus small-squamulose to subcrustose, whitish to pale grey, often green-spotted, appearing maculate when wet, dull, epruinose or completely covered with a white pruina. Squamules up to 1.5 mm wide, flat to slightly convex, with flexuose margins, scattered to aggregated (often on a black cyanobacterial mat). Upper cortex c. 50 μm thick, lacking crystals and epinecral later; algal layer discontinuous; medulla white, without crystals. Apothecia frequent, lecideine, strongly constricted at base, up to 1 mm across, with a black, epruinose, flat disc and a distinct, smooth, brown-black (paler than disc), glossy proper margin. Proper exciple dark reddish brown, K-, N-; epithecium brown-green, dark olivaceous green to green, K-, N+ violet; hymenium colourless to straw-coloured, 60-65 μm high; paraphyses not conglutinated, simple or sparingly branched and anastomosing in upper part, thin-walled, the apical cell distinctly swollen and covered by a gelatinous pigment cap; hypothecium dark reddish brown. Asci 8-spored, clavate, surrounded by a gelatinous I+ blue coat, with a well-developed I+ blue tholus, an I+ darker blue tube and a well-developed ocular chamber, Bacidia-type. Ascospores (1-)3-septate, hyaline, cylindrical with pointed ends, (14-)16-29(-35) x 3.5-5 μm. Pycnidia dark, immersed. Conidia filiform, sickle-shaped, 10-12.5 x c. 1 μm. Photobiont chlorococcoid. Spot tests: thallus K-, C-, KC-, P-, UV-. Chemistry: thallus without lichen substances.Note: for a long time considered as a synonym of T. aromatica, this seems to be a good species, characterized by the larger ascospores with pointed ends. It grows on more or less calciferous rocks in upland areas and is known from the British Isles (Cannon & al. 2021) and the French Alps (see Roux 2020). To be looked for in the Italian Alps.
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Predictive model
Felix Schumm - CC BY-SA 4.0
[VZR210}, Austria. Tirolia merid., Oetztaler Alpen, Obergurgl: secus viam montanam inter iugum Hohe Mut et Liebenerspitze in valle Gaisbergtal, 2400 m. Ad saxum gneissaceum pro parte calcareum, in fissuris. Leg. A. Vezda & F. Ceni, 2.9.1993, det. A. Vezda, conf. E. Timdal. Annot: The densely pruinose morphotype is not uncommon on calciferous substrata in alpine localities, and has been named Toninia fusispora (Körb.) Th. Fr. from E. Timdal in litt. EX A. VEZDA. LICHENES RARIORES EXSICCATI NR. 210. As Toninia aromatica
Felix Schumm - CC BY-SA 4.0
[VZR210}, Austria. Tirolia merid., Oetztaler Alpen, Obergurgl: secus viam montanam inter iugum Hohe Mut et Liebenerspitze in valle Gaisbergtal, 2400 m. Ad saxum gneissaceum pro parte calcareum, in fissuris. Leg. A. Vezda & F. Ceni, 2.9.1993, det. A. Vezda, conf. E. Timdal. Annot: The densely pruinose morphotype is not uncommon on calciferous substrata in alpine localities, and has been named Toninia fusispora (Körb.) Th. Fr. from E. Timdal in litt. EX A. VEZDA. LICHENES RARIORES EXSICCATI NR. 210. As Toninia aromatica
Growth form: Crustose
Substrata: rocks
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Predictive model
INDEX FUNGORUM
GBIF
Felix Schumm - CC BY-SA 4.0
[VZR210}, Austria. Tirolia merid., Oetztaler Alpen, Obergurgl: secus viam montanam inter iugum Hohe Mut et Liebenerspitze in valle Gaisbergtal, 2400 m. Ad saxum gneissaceum pro parte calcareum, in fissuris. Leg. A. Vezda & F. Ceni, 2.9.1993, det. A. Vezda, conf. E. Timdal. Annot: The densely pruinose morphotype is not uncommon on calciferous substrata in alpine localities, and has been named Toninia fusispora (Körb.) Th. Fr. from E. Timdal in litt. EX A. VEZDA. LICHENES RARIORES EXSICCATI NR. 210. As Toninia aromatica
