F. Børgesen; Rhodophyceæ of the Danish W. Indies. 



399 



Fig. 382. Chrysymenia Enteromorpha Harv. 



a, transverse section of the constriction between the sacs (about 80:1); 



b, a cystocarp seen from above (about 80:1). 



in the "Phycotheca Bor. -Am.", No. 386, a tetrasporic specimen 

 from Key West is found. The tetraspores are scattered over the 

 whole surface of the thallus in the cortical layer and are cruci- 

 ately divided. 



Of a female plant a fragment only was gathered. The cystocarps 

 are scattered over the surface 

 of the thallus; they are hemi- 

 spherical prominent and pro- 

 vided with an apical porus. 

 Fig. 383 shows a longitudinal 

 section through the middle 

 of a nearly ripened cysto- 

 carp; in the middle the pla- 

 cental branch is seen from 

 which the gonimoblasts are 

 formed. Seen from above the 

 cystocarps form spherical 

 bodies (Fig. 382 6). 



This plant was dredged 





Fig.383. Chrysymenia Enteromorpha Harv. 



Longitudinal section through the middle 



of a cystocarp (about 70:1). 



