Search the website

Lichen: Pyrenula macrospora

« Back

Name: Pyrenula macrospora (Degel.) Coppins & P.James (1980)

Pyrenula macrospora

Pyrenula macrospora

Pronunciation: Pyrenula macrospora

Conservation Evaluation: Least Concern
Body Type: Crustose

Vice County map of Pyrenula macrospora

Vice County map of Pyrenula macrospora

Description: Lacks apothecia; the main reproductive structures are the characteristic pseudocyphallae and perithecia. The pseudocyphallae are often found at the boundary edge between it and another species. Black volcano-like perithecia (less than 1.2 mm in diameter at base) have a centred ostiole at the tip. Pycnidia are also present. The thallus is a shiny or varnished creamy yellow to green-brown.
Chemical Tests: C-. K+ yellow. Pd+ slight hint of yellow. UV+/- yellow to orange.
Nature Notes: Found on smooth bark in shaded areas. Its habitat will help distinguish it from Acrocordia gemmata.

Vice County distribution map: See map.

Link: Map this species on: Lichen Survey

Other species recorded in Ireland:

  • Pyrenula acutispora
  • Pyrenula aff. Microtheca R.C.Harris
  • Pyrenula chlorospila Arnold
  • Pyrenula dermatodes (Borrer) Schaer.
  • Pyrenula hibernica
  • Pyrenula laevigata (Pers.) Arnold
  • Pyrenula occidentalis (R.C.Harris) R.C.Harris

Text and images © Paul Whelan, 2009.