ALGAG 119 
and often bearing air-bladders to assist in floating (Fig. 
111). The most complex body is that of the gulfweed 
(Sargassum), in which there 
are slender branching stems 
BRE: 
Fic. 110.—A_ sea-palm.— After Ru- Tic. 111.—Fragment of Fucus, showing 
PRECHT, forked branching, reproductive tips, 
and air-bladders.—After LUERSSEN. 
bearing numerous leaves like ordinary foliage, and stalked 
air-bladders that resemble berries (Fig. 112). The gulf- 
weeds occur in warmer waters than do the other large forms, 
and are often torn from their anchorage and carried away 
from the coast by currents, collecting in the great sea eddies 
produced by oceanic currents and forming the so-called 
Sargasso seas. Some of the gulfweeds forming these masses 
9 
