Flowering Plants as Epiphytes on Willows and Alders

Abstract

SINCE April, when trout fishing on many occasions in the river Chew, which enters the Avon between Bristol and Bath, I have been impressed with the large number of flowering plants, or Phanerogams, growing as epiphytes on pollard willows and alders by the river-side. I have listed about 103 species, in addition to the common Polypody fern. Some of these are of considerable interest in their strange habitat; and a single plant of Lysimachia vulgaris and two of Nasturtium sylvestre appear to be unrecorded species from the whole valley. The latter was also seen in the bed of the river during the drought of June.