BOTANY. 
271 
of Ulva luhrica, with which, in its texture and 
the disposition of its seeds, it appears exactly to 
coincide. It extends from three inches to as 
many feet in length, unbranched, and, as its name 
implies, cylindrical, forming an uniform tube, 
of a pale green color, and thin delicate semi- 
gelatinous substance, studded all over with darker 
green seeds, that are almost universally placed in 
fours, standing in small squares. As I have been 
fortunate enough to save specimens of this plant, 
and a drawing that I made upon the spot, I shall, 
probably, at some future time, take an op¬ 
portunity of making a figure, and more full 
description of it public. The water of the pools, 
that have been formed in the morasses, by cutting 
away the turf for fuel, generally abounds with 
our common species of Conferva ?, such as C. nitens 
and bipunctata; and a few of our marine ones are 
found in the basins among the rocks, and upon 
the sea-shores. But other more interesting 
species are met with on spots of earth and 
rock that are heated to a great degree, either by 
the steam of the boiling springs or by the waters 
themselves: most of these seem to belong to the 
Vaucherian Genus, Oscillatoria. Of Fungi , the 
island can boast but few, except some Agarici , 
scattered in such small quantities, that they 
are not used for food, and Ly coper don Bovista, 
which is found every where. 
