Underside of a rustyback frond showing the orange-brown hairs that give this fern its name. Photo credit: Lara Shepherd.

Whilst recently holidaying in Bristol in the UK I was amazed at the abundance and variety of ferns growing on the stone walls around the city. The spleenwort or Asplenium ferns seem to be the most common ferns of this habitat. This genus also occurs in New Zealand and includesRead more