• Leptorhaphis atomaria (Ach.) Szatala

There are no records for this species at present.

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Recorded only from County Fermanagh, L. atomaria is a ‘bark-pimple’ species of aspen Populus tremula. The spores of this genus can be distinguished by their elongated and curved spindle-like shape. The spherical discs or perithecia have a hard outer shell (involucrellum). L. atomaria has a whitish thallus with perfectly circular discs surrounded by a fringe; the spores can be one- to three-septate.

Key characteristics

  • Thallus white to grey on aspen bark with ‘bark-pimple’ discs
  • Discs circular (tiny dots) with a neat and conspicuous halo-like fringe; spores one- to three-septate.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Leptorhaphis atomaria (Ach.) Szatala. [In] LichenIreland. Accessed on 2018-08-20.