44 
rocks, it becomes dwarfed and more or less prostrate and ap- 
pressed, as may be seen in the accompanying illustration (Fig. 
To). A‘ ak ” near the southeastern extremity of Watling’s 
Island furnished some marine algz of peculiar interest, including 
fertile specimens of Halimeda tridens, which are of exceedingly 
rare occurrence, having, in fact, been previously reported only 
from Porto Rico, where they were obtained by a New York 
Euphorbia vata Griseb, (the low ead iia shrub) on 
ae cee sea-cliffs, Long Cay, Cockburn Harbor, South Cai 
Botanical Garden expedition in 1906. Halimeda tridens and 
Halimeda Monile, two closely related and occasionally confused 
species, were growing in great profusion and in most intimate 
association in this creek, yet showed no traces of intergrading 
orms, 
From the southern end of Watling’s Island, we sailed on the 
afternoon of November 30 for Atwood (Samana) Cay, a small 
island about eighty miles to the southeast, anticipating covering 
this distance by the following daybreak, but the wind shifted and 
“4 
