6. 
1896.] The Development of Nemation. 343 
awh Farlow as occurring at the base of the fronds of 
Bae cate Kiitz., which, as also suggested by him, 
of that plant. 4 connection with the growth of the mature frond 
ya “sateen g has developed from three to ten rounded 
Dnanti of a decidedly different type are developed in the 
in in the filament. These are long, narrow and 
deeply ier aches cytoplasmic contents and smaller, less 
ecna - chromatophores (figs. 13, 14, 15). In fig. 13, 
are nec cells are followed by elongated forms which at 4 
from this A ed by two cells which have developed as buds 
ei i cell of the filament, b, and this is the first case 
ling. “tte mene of dichotomous branching in the spore- 
dther Dsireli this elementary stage of branching are traced in 
nerfection ae more advanced stages, showing degrees of 
proachin: of dichotomous and of fascicled branching, ap- 
branches of th e and more in their appearance the fascicled 
ter Fi e filament of the mature frond, to be described 
ftumero BS. 13, 14) 35 and 12 show sucha series, taken from 
us plants of similar structure. 
this poj : lings are of interest at 
of ies. Fig. 13 shows three of these cells extending back 
irkea b e, a. Fig. 14 shows two such processes and three 
cG. ranches or rhizoidal processes 
formed These are similar to the branc 
abundantly at the bases of mature 
btless identical in forma- 
tion wi 
with these sporeling processes. 
i ies, as the 
tur ’ 
hom ' f These arms would later divi 
Continue "s ascicles with occasional single 
ength a n the manner of the early spore 
nd thus increase the frond in lengt 
of th 
Mass, om le plant, was next investigated. 
» Which surrounds every filament of the plant, 
*Farro. 
w, W. G., Marine Alge of New England 84. 
