;
colour of G. simpUcifilum is much brighter than that of
G. equisetifolia, but this character is not always to be depended
upon. Perhaps the other differences mentioned are
equally uncertain, and then this supposed species would be
reckoned but a slender variety of G. equisetifolia, whose
peculiar aspect was due to local circumstances. I have usually
observed G. equisetifolia on rocky shores, exposed to considerable
sm-f, while the most abundant locality for G. simplicifilum, and
where it keeps all its peculiar characters without change, is on
the extensive sandy beaches of Wexford, in comparatively
quiet water.
Fig. 1. G k ifm th s ia sim p lio ip ilcm :— the natural size. 3. Portions of a
branch, magnified. 3. One of the ramelli:— highly magnified.
\
