Collema tena4707b.jpg

Licence: 
Creative Commons Licence
Description: 

Collema tenax, growing in cracks of block paving, VC 30, Bedfordshire. Material such as this, which is sterile and forms rather compact cushions is usually recorded as the var. ceranoides.

Taxonomic name: 
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith