K I
il
receptacle of that plant for the space of several inches, forming
swellings of a dark colour and very slippery surface.
By Prof. Kiitzing this species alone is retained in the genus
Elachistea, the other species of authors being placed by him
either in Phycophila or in Myriactis. There are some minor
differences of structui-e observable among these plants, chiefly
as respects the composition and degree of development of the
tubercular base, but there is so close a resemblance in habit, and
such an identity of nature running through the whole, that I am
unwilling to cumber the science with additional generic names.
Eig 1 Shields of E lachistea scutulata on part of a thong of Himantlmlia
lorea -.— tie natural size. 2. Vertical slice of a portion of the tubercle, and
of the surface of the nurse-plant. 3. Small portion of the same showing
the short fflaments (or paranemata); a spore; and one of the long filaments,
&c. :—h
ill
