PLATE: V. 
Fig. 7.—Eucratea chelata Linneus. Habit sketch, about natural size. 
Fig. 8.—E. chelata. Enlarged to show zowcia and method of branching 
(e. br.) just below the aperture (ap.), and the creeping branches (cr. br.) 
given off from the sides of the zowcia. X 50. 
Fig. 9.—£. chelata. Showing oecium (0e.) on a small aborted zowcium. 
(After Hincks.) X 50. 
Fig. 10.— Gemellaria loricata Linneus. Habit sketch, natural size. 
Fig. 11.—G. lcricata. Portion of a branch enlarged to show arrange- 
ment of zowcia and method of branching. X 30. 
Fig. 12.—Menipea ternata Ellis and Solander. Habit sketch of speci- 
men from Puget Sound. 
Fig. 13.—M. ternata. Habit sketch of specimen from California. 
Fig. 14.—M. ternata. Enlarged portion of colony from Puget Sound 
showing zowcia in groups of three, except the omcial internodes (oe.). Lat 
eral avicularia (av.) well developed. X 30. 
M. ternata. Dorsal view of the zocwcium at the bifurcation of 
a branch (bi. br.) showing the adjoining zoecia (lat. z@.) and root chamber 
(r. ch.) with upward extending rootlet (r.). X 30. 
Fig. 15. 
Tig. 16.—M. ternata. A single zowcium to show the position of the two 
kinds of root fibres, those anchoring the colony (r.), arising in a simple 
root disk (7. d.) on the front wall of the zowcium; those extending upward 
(wu. r.), arising from a rather large chamber (1. ch.) projecting from the 
zowcial wall just above the lateral avicularium. X 30. 
[300] 
ih in ii i i i lt 
