• Verrucaria bryoctona (Th.Fr.) Orange
Verrucaria bryoctona
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(Map updated: 11 August 2009)

This member of the genus occurs on soils or among mosses on the ground. The green-grey granular thallus has immersed discs (perithecia) containing narrowly ellipsoid simple spores (1925m long) often with occasional septate spores in over-mature material. A key feature to search for under the microscope is the presence of short, thick gelatinous appendages attached to the spore ends. The similar V. xyloxena has smaller spores (1621m long) without appendages and a brown pigment within the thallus.

Key characteristics

  • Thallus green-grey with immersed discs; spores simple with a gelatinous appendage occasionally visible and some older spores becoming septate
  • V. bryoctona is a soil-inhabiting species: rare.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Verrucaria bryoctona (Th.Fr.) Orange. [In] LichenIreland. Accessed on 2019-08-25.