Psorotichia murorum A. Massal.
Framm. Lichenogr.: 15, 1855.
Synonyms: Collemopsis murorum (A. Massal.) Stizenb.; Psorotichia arenaticola Eggerth
Distribution: N - Ven (Lazzarin 2000b), TAA, Lomb, Piem, Emil (Fariselli & al. 2020), Lig. C - Tosc, Abr, Sar. S - Pugl, Si.
Description: Thallus crustose, areolate, homoiomerous, pseudoparenchymatous throughout, the hyphae 3-8 µm thick. Areoles 0.25-0.8(-1.2) mm wide, up to 0.3(-0.5) mm thick, contiguous, brownish black, epruinose, with an uneven, weakly granulose surface, attached by rhizohyphae. Apothecia lecanorine, at first immersed, then adnate to sessile, 2-6(-8) per areole, 0.1-0.4(-0.6) mm across, with an initially punctiform, then expanded, concave to flat, reddish brown to brown-black disc surrounded by a thick, smooth thalline margin. Proper exciple poorly differentiated, up to 10 µm wide laterally, formed by irregularly anastomosing hyphae; epithecium orange-brown, 10-15 µm high; hymenium colourless, (85-)100-120 µm high, K/I+ blue; paraphyses branched and anastomosing, with cylindrical cells, only slightly constricted at septa, 2-3 µm thick; hypothecium colourless, 30-50 µm high. Asci 8-spored, subclavate, with a very thin wall disintegrating or opening by apical ruptures, with an only indistinct amyloid cap, Lichina-type, Psorotichia subtype, 55-70 x 12-17 µm. Ascospores 1-celled, hyaline, ellipsoid, (9-)10-18(-20) x (5-)7-9(-10) µm. Photobiont cyanobacterial, chroococcoid, of a few cells measuring 6-12 x 3-7 µm, surrounded by a gelatinous sheath which is yellowish brown near the thallus surface. Spot tests: all negative. Chemistry: without lichen substances. Note: on sunny surfaces of calcareous rocks, including mortar, mostly below the montane belt.
Growth form: Crustose
Substrata: rocks
Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)
Reproductive strategy: mainly sexual
On otherwise dry surfaces with short periods of water seepage after rain
Poorly known taxon in need of further study
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: extremely rare
Submediterranean belt: rare
Padanian area: absent
Humid submediterranean belt: very rare
Humid mediterranean belt: very rare
Dry mediterranean belt: absent
Predictive model
Collezione lichenologica Abramo Massalongo del Museo di Storia Naturale G. Ligabue di Venezia - Autori: Seggi, Linda; Trabucco, Raffaella Proprietà: Fondazione Musei Civici di Venezia - CC BY-NC
Italy, Veneto, ad saxa et muros in Prov. Veronensi 1855
Felix Schumm - CC BY-SA 4.0
[ABL53572A], Taiwan, Taipei County, 25 km N of Taipei, seashore, on
volcanic rock, outcrop near Sanji. 25°17’21’’ N, 121°30’41’’ E, 0-5 m.
Leg. A. Aptroot (no 53572A), 22.10.2001, det.A. Aptroot, 2002, conf.
M. Schultz, 2007.
Felix Schumm - CC BY-SA 4.0
[ABL53572A], Taiwan, Taipei County, 25 km N of Taipei, seashore, on
volcanic rock, outcrop near Sanji. 25°17’21’’ N, 121°30’41’’ E, 0-5 m.
Leg. A. Aptroot (no 53572A), 22.10.2001, det.A. Aptroot, 2002, conf.
M. Schultz, 2007.
Source: Prieto M., Wedin M., Schultz M. 2024. Phylogeny, evolution and a re-classification of the Lichinomycetes. Studies in Mycology, 109: 595-655. - CC BY-NC-ND
Psorotichia murorum, granulose crustose thallus with indistinct areoles and grouped apothecia (Massalongo Lich. Ital. 300, M, isolectotype). Scale = 1 mm.
Felix Schumm - CC BY-SA 4.0
[ABL53572A], Taiwan, Taipei County, 25 km N of Taipei, seashore, on
volcanic rock, outcrop near Sanji. 25°17’21’’ N, 121°30’41’’ E, 0-5 m.
Leg. A. Aptroot (no 53572A), 22.10.2001, det.A. Aptroot, 2002, conf.
M. Schultz, 2007.
Felix Schumm - CC BY-SA 4.0
[ABL53572A], Taiwan, Taipei County, 25 km N of Taipei, seashore, on
volcanic rock, outcrop near Sanji. 25°17’21’’ N, 121°30’41’’ E, 0-5 m.
Leg. A. Aptroot (no 53572A), 22.10.2001, det.A. Aptroot, 2002, conf.
M. Schultz, 2007.
Felix Schumm - CC BY-SA 4.0
[ABL53572A], Taiwan, Taipei County, 25 km N of Taipei, seashore, on
volcanic rock, outcrop near Sanji. 25°17’21’’ N, 121°30’41’’ E, 0-5 m.
Leg. A. Aptroot (no 53572A), 22.10.2001, det.A. Aptroot, 2002, conf.
M. Schultz, 2007.
Felix Schumm - CC BY-SA 4.0
[ABL53572A], Taiwan, Taipei County, 25 km N of Taipei, seashore, on
volcanic rock, outcrop near Sanji. 25°17’21’’ N, 121°30’41’’ E, 0-5 m.
Leg. A. Aptroot (no 53572A), 22.10.2001, det.A. Aptroot, 2002, conf.
M. Schultz, 2007.
Growth form: Crustose
Substrata: rocks
Photobiont: cyanobacteria, filamentous (e.g. Nostoc, Scytonema)
Reproductive strategy: mainly sexual
On otherwise dry surfaces with short periods of water seepage after rain
Poorly known taxon in need of further study
Commonnes-rarity: (info)
Alpine belt: absent
Subalpine belt: absent
Oromediterranean belt: absent
Montane belt: extremely rare
Submediterranean belt: rare
Padanian area: absent
Humid submediterranean belt: very rare
Humid mediterranean belt: very rare
Dry mediterranean belt: absent
Predictive model
INDEX FUNGORUM
GBIF
DOLICHENS
Collezione lichenologica Abramo Massalongo del Museo di Storia Naturale G. Ligabue di Venezia - Autori: Seggi, Linda; Trabucco, Raffaella Proprietà: Fondazione Musei Civici di Venezia - CC BY-NC
Italy, Veneto, ad saxa et muros in Prov. Veronensi 1855
Felix Schumm - CC BY-SA 4.0
[ABL53572A], Taiwan, Taipei County, 25 km N of Taipei, seashore, on volcanic rock, outcrop near Sanji. 25°17’21’’ N, 121°30’41’’ E, 0-5 m. Leg. A. Aptroot (no 53572A), 22.10.2001, det.A. Aptroot, 2002, conf. M. Schultz, 2007.
Felix Schumm - CC BY-SA 4.0
[ABL53572A], Taiwan, Taipei County, 25 km N of Taipei, seashore, on volcanic rock, outcrop near Sanji. 25°17’21’’ N, 121°30’41’’ E, 0-5 m. Leg. A. Aptroot (no 53572A), 22.10.2001, det.A. Aptroot, 2002, conf. M. Schultz, 2007.
Source: Prieto M., Wedin M., Schultz M. 2024. Phylogeny, evolution and a re-classification of the Lichinomycetes. Studies in Mycology, 109: 595-655. - CC BY-NC-ND
Psorotichia murorum, granulose crustose thallus with indistinct areoles and grouped apothecia (Massalongo Lich. Ital. 300, M, isolectotype). Scale = 1 mm.
Felix Schumm - CC BY-SA 4.0
[ABL53572A], Taiwan, Taipei County, 25 km N of Taipei, seashore, on volcanic rock, outcrop near Sanji. 25°17’21’’ N, 121°30’41’’ E, 0-5 m. Leg. A. Aptroot (no 53572A), 22.10.2001, det.A. Aptroot, 2002, conf. M. Schultz, 2007.
Felix Schumm - CC BY-SA 4.0
[ABL53572A], Taiwan, Taipei County, 25 km N of Taipei, seashore, on volcanic rock, outcrop near Sanji. 25°17’21’’ N, 121°30’41’’ E, 0-5 m. Leg. A. Aptroot (no 53572A), 22.10.2001, det.A. Aptroot, 2002, conf. M. Schultz, 2007.
Felix Schumm - CC BY-SA 4.0
[ABL53572A], Taiwan, Taipei County, 25 km N of Taipei, seashore, on volcanic rock, outcrop near Sanji. 25°17’21’’ N, 121°30’41’’ E, 0-5 m. Leg. A. Aptroot (no 53572A), 22.10.2001, det.A. Aptroot, 2002, conf. M. Schultz, 2007.
