210 The Philippine Journal of Science 1922 
fig. 1. The protoplasts are in less than the outer half of the 
space between these two limits. Where a gonidium or embryo 
occurs in the median optical section of the daughter the inner 
boundary of the somatic membranes is deflected inward to form 
a lenticular thickening just thick enough to include the repro- 
ductive body between its inner limit and the layer of somatic 
protoplasts. Such a 2-celled embryo measured 18 ,» thick and 
about 23 » wide. This embryo, then, if my interpretation of . 
the line 7’ in fig. 1 be correct, occupies the center of a lenticular 
thickening of the body wall of the daughter that is equal in 
thickness to the radial dimensions of the peripheral lamella, 
the somatic protoplasts, and the embryo combined. 
Fic, 1. Optical section through mother and daughter coenobia of the type specimen in Vene- 
tian turpentine. In the right half of the figure the invisible bounding lamellae of the 
separate cells are drawn as they are supposed to be. The somatic wall, m, of the mother 
with its protoplasts, p, is included between its outer membrane, o, and its inner membrane, 7. 
The wall, d, of the daughter between its outer, o’, and inner, i’, membranes contains the 
layer of smaller protoplasts and the gonidium, g. Semidiagrammatic. X 1,000. 
None of the 8-celled embryos are in positions that are favor- 
able for showing the inner limit of the membranes of the coe- 
nobial wall. 
Embedded in the coenobium wall are numerous endophytic 
algae of a species probably belonging to the genus Chlorosphaera 
Klebs. They are most numerous on the front of the coenobium 
and are present in a great variety of stages. 
OTHER ASEXUAL COENOBIA 
A less-mature coenobium (specimen 2) with daughters nearly 
or fully formed is shown in Plate 2, fig. 9. This is on the same 
slide as the type specimen. The coenobium measures 535 by 
525 », and the daughters range from 140 by 174 to 190 by 200 p. 
There are ten daughters. They are more nearly in two cir- 
cles of five each than in fours or pairs, but the members of a 
