Thelocarpon imperceptum (Nyl.) Mig.
Flora von Deutschl., 2, 12: 4852 1927. Basionym: Athelium imperceptum Nyl. - Flora, 69: 463, 1886
Synonyms: Thelocarpon polysporum (Tomin) Tomin
Distribution:
Description: Thallus crustose, not lichenized, very thin and film-like, inconspicuous when dry but forming greenish spots when wet, the hyphae c. 0.5-0.75 μm thick, forming a loose network among soil particles in lower part and enclosing chlorococcoid algae in upper part. Ascocarps perithecioid, globose, (0.25-)0.3-0.42 across, fully to 3/4 immersed in soil, the 0.1-0.15 mm wide, dark brown to black apical part emerging. Exciple colourless in outer part, pale pink-brown in inner part, (35-)40-45(-50) μm thick, devoid of algae; paraphyses absent; periphyses simple or sparingly branched, (20-)27-30(-35) μm long, perpendicular to the uppermost part of the exciple; hymenial gel I–. Asci 200-300-spored, the wall I+ pale blue. Ascospores simple, hyaline, oblong, (5.5-)7-12(-14) x (2.5-)4-5.5(-6.3) μm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-. Chemistry: without lichen substances.Note: an ephemeral, pioneer terricolous lichen growing on clay to loamy soil in open situations, with a scattered distribution from Western Europe to Russia, but very easy to overlook. To be looked for in Italy.
Growth form: Crustose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Pioneer species
Predictive model
Pier Luigi Nimis - CC BY-SA 4.0
TSB 32720
Pier Luigi Nimis - CC BY-SA 4.0
TSB 32720
Pier Luigi Nimis - CC BY-SA 4.0
TSB 32720
Pier Luigi Nimis - CC BY-SA 4.0
TSB 32720
Pier Luigi Nimis - CC BY-SA 4.0
TSB 32720
Felix Schumm - CC BY-SA 4.0
[VZR430], Hollandia. Brabantia borealis. Son, Hautens, pontus parvus
super canalem, ad terram argillaceam. Leg & det. P. v. d. Boom. EX A.
VEZDA: LICHENES RARIORES EXSICCATI NR. 430.
Felix Schumm - CC BY-SA 4.0
[VZR430], Hollandia. Brabantia borealis. Son, Hautens, pontus parvus
super canalem, ad terram argillaceam. Leg & det. P. v. d. Boom. EX A.
VEZDA: LICHENES RARIORES EXSICCATI NR. 430.
Source: Salisbury G. 1966. A monograph of the lichen genus Thelocarpon. Lichenologist, 3: 175-196.
Growth form: Crustose
Substrata: soil, terricolous mosses, and plant debris
Photobiont: green algae other than Trentepohlia
Reproductive strategy: mainly sexual
Pioneer species
Predictive model
INDEX FUNGORUM
GBIF
Pier Luigi Nimis - CC BY-SA 4.0
TSB 32720
Pier Luigi Nimis - CC BY-SA 4.0
TSB 32720
Pier Luigi Nimis - CC BY-SA 4.0
TSB 32720
Pier Luigi Nimis - CC BY-SA 4.0
TSB 32720
Pier Luigi Nimis - CC BY-SA 4.0
TSB 32720
Felix Schumm - CC BY-SA 4.0
[VZR430], Hollandia. Brabantia borealis. Son, Hautens, pontus parvus super canalem, ad terram argillaceam. Leg & det. P. v. d. Boom. EX A. VEZDA: LICHENES RARIORES EXSICCATI NR. 430.
Felix Schumm - CC BY-SA 4.0
[VZR430], Hollandia. Brabantia borealis. Son, Hautens, pontus parvus super canalem, ad terram argillaceam. Leg & det. P. v. d. Boom. EX A. VEZDA: LICHENES RARIORES EXSICCATI NR. 430.
