Lichen: Pyrenula macrospora
Name: Pyrenula macrospora (Degel.) Coppins & P.James (1980)
Pronunciation: Pyrenula macrospora
Conservation Evaluation: Least Concern
Body Type: Crustose
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.