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branched, so that its tufts are more busby and feathery. It
frequently lies prostrate, forming a widely spreading fleecy
covering either to rocks or to mud, but tbis character is not
very constant. To Fnt. erecta (Plate XLIII.) it is also very
closely allied, but is of less plumy habit than that species, with
less difference in diameter between tbe main stems and branches
and their lesser divisions, and tbe ramuli are shorter and more
squarrose. Still, it must be confessed that there is a greater
resemblance between these three species, in microscopic characters,
than a species-maher would desire ; and I remain of tbe
opinion formerly expressed, that no great violence would be done
to truth by regarding them all as forms of one Protean species.
Fig. 1. E n t e r o m o r p h a c l a t h r a t a ;—Tuft the natural size. 2. Part of a
branch :—magnijied. 3. One of the ramuli ;—I t
