Marine Plants of Nha Trang — Dawson 
387 
Fig. 7. a-c, Rhizoclonium kerneri: a, Upper portion of a filament, X 235; h, portion of a prostrate filament bearing 
a rhizoid and an erect branch, X 200; c, zoosporangial cells, X 135. <7, Cladophora inserta var. ungulata: A small por- 
tion of a plant to show the reduced size of the curved, fasciculate branchlets compared to a main axis, X 54. e, 
Cladophora patentiramea f. longiarticulata: Habit of a portion of a plant, X 13.5. /, g, Cladophora albida: f, A small 
portion of a branched axis, X 50; g, part of a fertile filament, X 100. h, Cladophora perpusilla: Upper portion of a 
branched filament, X 22. i, Entocladia viridis: Habit of a plant apart from its host, X 160. 
broad, are distinctive features. Recurved 
branchlets occur rather frequently as is often 
the case in this species. 
Cladophora perpusilla Skottsberg and Lev- 
ring, in Levring 1941: 611, fig. 2c-f (Juan 
Fernandez Islands) 
Fig. Ih 
LOCAL DISTRIBUTION: Forming small, dense 
tufts 7-15 mm. high on saxicolous red algae 
(11219) and on the seawall (11230), Sta. 6; 
Sta. 10 (11325). 
The lower parts are 60-70 g in diameter, 
gradually reduced above to 50-30 g. Cell form 
and branching habit are in full accord with 
the Juan Fernandez plant. 
