LichenIreland
  • Scoliciosporum chlorococcum (Graewe ex Stenh.) Vězda
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Scoliciosporum chlorococcum
© Mike Simms
Scoliciosporum chlorococcum
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This tiny, epiphytic crustose lichen of large twigs and branches would most probably need to be collected for certain identification. Although fairly well distributed, the small branches of acid-barked trees such as oak would first need to be scanned with a hand lens looking carefully in the gaps between foliose lichens for signs of the dirty grey-green, granular thallus and minute, convex, shiny red-brown to brown-black discs (0.2-0.3mm diam.). Under the microscope a squash of the disc will show the spores to be spindly and mostly seven-septate.

Key characteristics

  • Granular, green-black thallus (about 0.5-2.0cm in extent) scattered with neat, convex, shiny red-brown discs
  • Spores straight, slightly curved or spindle-like, seven-septate.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Scoliciosporum chlorococcum (Graewe ex Stenh.) Vězda. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=19033 Accessed on 2017-11-21.