46 The Botanical Gazette. [February, 
sought for, both in the vicinity of Cambridge and of Kittery 
Point, Maine. The present note therefore is based on the 
examination of very abundant material from widely separated 
localities, which illustrates by an almost unbroken series the 
wide range of variation for which this plant is remarkable. 
In general terms the fungus may be described as consisting 
of a highly developed unicellular main axis (‘‘Hauptstamm’) 
more or less clearly differentiated, which may remain simple 
or become distally variously branched, and is attached by 
copious rhizoids to the substratum on which it grows. The 
branching of this axis may be sub-umbellate or irregularly 
dichotomous, while the branches themselves may be in turn 
several times more or less irregularly branched, varying 
greatly in size, habit and appearance. The axis if it is simple, 
rule more or less abruptly swollen distally into often well de- 
veloped heads from the surface of which are produced, ter- 
minally or sub-terminally, the organs of reproduction, as well 
as certain peculiar sterile branchlets which will be mentioned 
subsequently. In some branched forms, however, this ter- 
themselves to the inner surface of the wall of the terminal en 
largement of the axis already mentioned, they were said [ 
° "Diese Zellchen legen sich an die innere Schl ~ 
auchwandung an, durchbrech™ 
Nees der Beruhrungsstelle mit der Schlauchwandung cnavacheeie: 
= ran des >chiauches und kommen auf der Aussenseite der Schlaueh 
wandung als kleine Hékerschen zum Vorschein.’’—Reinsch 1. c. 292. 
