LichenIreland
  • Usnea hirta (L.) F.H.Wigg.
Usnea hirta
Click on map to open large map in new window
(Map updated: 11 August 2009)

Click here to view an interactive map of the Northern Ireland dataset as currently collated by CEDaR.
The map is generated through the NBN Gateway using their Interactive Mapping Tool.

 

This rather squat and bushy, or tangled, or occasionally stringy and pendulous ‘beard lichen’, needs acid bark to thrive. The grey-green thallus grows to about 4cm (but it is usual to find it much shorter). The branches are irregular in cross-section and limp when moistened with water. The main stems like porcupine legs carry a host of projecting spine-like spinules. Spot tests are negative. In Ireland, the species is more common in the north, around Connemara and near Belfast, especially.

Key characteristics

  • Dense tufts of scraggy branches (often of different thicknesses)
  • Spot tests negative; branches thick with spinules; on acid bark and wood.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Usnea hirta (L.) F.H.Wigg.. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=19145 Accessed on 2017-11-19.