210 
tips in some plants, and only a suggestion in 
others. 
Specimens collected are sterile. 
Found in Ilae Pond, Molokai Island. 
Ceramium sp. (2) (see Fig. lla-b). 
Plants 2-3 cm. in height, dark pink, 
tufted, erect, branching with a percurrent 
main axis, the tips dichotomous and occa¬ 
sionally forcipate. Outer edges of the 
branches markedly dentate. Nodal bands 
close in the younger parts, in the older parts 
quite separated. Mature nodes marked by 
three rows of flattened cells below the sep¬ 
tum, and smaller, angular cells above. Tetra- 
sporangia 70 /x in diameter, sub-exposed, 
with an upgrowth of smaller cortical cells 
over them. Sporangia usually single at the 
PACIFIC SCIENCE, Vol. 1, October, 1947 
node, rarely two. Spermatangial and carpo- 
gonial plants not seen. 
Found in Ilae Pond, Molokai Island, and 
Molii Pond, Oahu Island, in the more saline 
portions adjacent to the sea. 
Neither of these species of Ceramium 
seems to be one of those reported previously 
from the islands: C. Kuetzingianum by Mac- 
Caughey and Ceramium sp. by Neal. Cera¬ 
mium diaphanum by Tilden is Centroceras 
clavulatum. 
Taenioma J. Agardh, 1863: 1256 
A detailed account of this genus, and par¬ 
ticularly the following species, may be found 
in Papenfuss (1944) and Tseng (1944). 
Taenioma perpusillum (J. Agardh) J. 
Agardh, Sp. Alg. 2 (3): 1257, 1863. 
Fig. 12. Polysiphonia aquamara Abbott. Type specimens. Scale A (divisions 100 microns). A. Habit 
of cystocarpic plant showing young and mature cystocarps. B. Shape of cystocarps from another 
branch. C. Basal portion of tetrasporangial plant. D. Habit of plant showing tetrasporangia (cover 
cells have been omitted). 
