207 



I may also point out that I have once found a plant with the 

 greater part female yet on a few branches bearing tetraspores. 

 Lewis mentions that he has found a female plant with a few an- 

 theridial branches and another mostly antheridial plant [also with 

 tetraspore-like mother-cells. 



In the West Indies this species is found fully developed with 

 tetraspores, antheridia and cystocarps in February and March. 



Fig. 20. Griffithsia globifera (Harv.) J. Ag. 



A, part of a tetrasporic plant (8:1). B, part of the same more magnified (75 : 1). C, tetra- 

 sporic branch (150 : 1). D, top-cell of a male plant (15 : 1). E, procarp with carpogonic 



branch (150 : 1). 



All the specimens were found in deeper water from 5 — 15 

 fathoms and in more open sea with the exception of one specimen 

 gathered during my first visit to the West Indies in 1892. This 

 specimen was taken in the environs of Ghristianssted, St. Croix, 

 and had been most probably washed ashore. 



This species has been found near Buck Island at St. Croix 

 at a depth of about 5 fathoms and in the Sound between St. 

 Thomas and St. Jan: off Christiansfort. 



13.— 5.— 1910. 



