CO 



CARL SKOTTSBERG, MARINE ALG^E 2. RHODOPHYCEiE. 



in the male plant (and as in G. Bornetiana); in G. corallina one ray is cut off from eacli 

 stalk cell. 



Fig. 29. Griffithsia antarctica: å male lobule from surface, X 300; b optical section through top of male lobule, X 36Ö5 

 C — i development of cystocarp, C procarp (F. b.), X 90, <1 3-cell stage of same, X 90; © — i låter stages X 180; k three stalk 

 cells with tetrasporangia, x 190; 1 stalk cell, mature sporangia removed, X 360. — F. b. procarp. cc 1, 2, 3 central cells. 

 pc pericentral cells, supc supporting cell, stc sterile cell, aux auxiliary cell, carp_ carpogenic branch, tr triehogyne, inv involucre. 



Hooker and Harvey regarded G. antarctica as »allied to G. secundiflora, but 

 smaller in all its parts». G. secundiflora becamc the type of Bornetia Thur., and there- 



