THE PLANTS OF THE SEA. 39 
like leaf, fifteen or twenty yards long, which at its commencement 
is narrow, then continues an equal size, and at last gradually 
narrows into a point. 
The pear-bearing wrack (Macrocystis pyrifera) of Terra del 
Fuego grows in large ramified bushes; each branch ends in a 
hollow bag, a kind of inflated swimming bladder, which might well 
AGARUM. 
(Agarune Gmelinz.) 
be taken for a fruit. This fucus may be found rooted at a depth of 
150 fathoms (G. Forster), and, consequently, is higher than the 
highest of our trees. 
The Wereocystis has a false filiform stem, which is flexible, and 
some thirty yards high ; towards its extremity it gradually thickens, 
where it suddenly dilates into a little pear, out of the eye of which 
springs a tuft of dichotomous appendages, ten or twelve yards long, 
flexible and straight, forming an immense bouquet. 
