17 



can grow out again. Once I have found a filament with a side 

 branch growing out from the middle of the long has cell 



In the rhizoids much starch is present often n. more o' less 



swollen parts of the rhizoids. That these swellings arabe to 



grow out to erect assimilation filaments and m f hi^'ay he l 



the formation of the dense tufts seems very probable but 



any case young specimens originating from zoospores often 



Fig 4. Two young 

 plants of Chceto- 

 morpha antennina. 

 «, a quite young, not 

 ciivided plant; h, an 

 older plant showing 

 the long basal cell 

 with the beginning 

 of annular constric- 

 tions at its base 

 (about 7:1). 



Geogr. Distrib. 

 ico, Africa. 



Siernfost^hlS^rrDart^o^^^^^^^^^^^ 

 annular constricti^nfld'^lt licl ly " a^SdTht 

 zoids provided with starch (abo^ut 20 • T) 



occur also in the tufts, the zoospores getting 

 belter to fix themselves here amofg thf 

 felted rhizoids. ^ 



Chsetomorpha antennina grows on rockv 

 shores near or a little above the surface of 

 tne sea. It is abundant on, and characteristic 

 of, the most exposed places, where it is con- 

 stantly dashed by the waves. 



Bay- sf rf ''"^ ^"^d Northside Estate, Cane 



Jan; Cruz Btr""' '''" '''''''''' ^"^^* = ^'■ 



West Indies, Atlantic and Pacific coasts of Mex- 



