• Mycoporum lacteum (Ach.) R. C. Harris

There are no records for this species at present.

This crustose epiphyte and member of the ‘bark-pimple’ tribe is faithful only to holly, growing in ancient, old-growth woodland. The thallus forms pale grey patches on the lowermost bark, and is sprinkled with 2-15 discs or perithecia crammed together into locules (flat, low, black, tar-like spots, 0.3-0.6mm diam.) reminiscent of Tomasellia gelatinosa (described elsewhere), but less regular in outline. The colourless mature spores are one-septate.

Key characteristics

  • Discs in tiny irregularly shaped locules, like miniature tar-spots less than 1mm diam.
  • Exclusive to holly, mostly occurring near to the foot of the tree; spores colourless.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Mycoporum lacteum (Ach.) R. C. Harris. [In] LichenIreland. Accessed on 2018-12-18.