CRYPTOGAMIA. ALG. Ulva. 
U: Thread-shaped, entire, or but little branched, opake, elm 
slippery, end bluntish,. amet a 
Pirate XVII. f.- 2. 
Resembles a worm in its writhing form, size, and mucilagi- 
nous nature, It rises froma thick, blunted base, like glue, 
fixed in the interstices of the rocks. It is generally simple, 
sometimes ‘a little branched toward: the middle of the plant, 
sometimes 5 or 6 grow together, in which case they are pro- 
portionally reduced in size, which in the largest seldom exceeds 
that of a goose quill; from 4 to7 inches long blunt at the end, 
Colour resembling, but sometimes lighter than that of glue. 
It is soft, and consists of a fine membrane which on its internal 
surface seems crowded with extremely minute, opake, granulated 
bodies, If cut horizontally into very thin lamina, these grains 
appear fixed in a clear gelatinous substance which constitutes 
the interior body of the plant, and they seem to'occupy about 
one third part of its surface in a circular direction, leaving the 
middle part perfectly clear, through the centre of which a dark 
parenchymous line passes, from one extremity to the other. 
Grows in abundance upon the rocks off the Beal, at the ex.’ 
tremity of Portland, at very low water. June, July. I could 
not find it in October, so that I suppose from its mucilaginous 
texture it soon perishes. Major Vitter. Fucus elminthoides. 
Bot, arr, ed, ii, ber 3 5 
4 
123 
inthoi’- 
des. 
U, Tubular, simple, equal, membranaceous, green. intestina’lis, 
Dill. 9. 7-Buxb, v. 23. 1. 
Varying greatly in size; simple or branched, from the 
thickness of a eat a that of a wan ie and an ell or 
two in length; hollow: very unequal on the surface, yellowish 
when young, changing toafine green. Du. 47, 
Mostly in ditches near the sea, but sometimes in fresh. 
water ditches, Very common in Cornwall, and of all sizes. 
The inside often filled with sand so as to represent hie pud- 
ding. Mr. Sracxnouss. A. March—Oct. 
Uv. Tubular, uniform, simple, Hups. 569. ; 3 fistulo’sa,. 
‘ E, bot. 642, b Ea x ny ide, * 
Root creeping. Leaves numerous, pipe-like, closed-at the 
end, brownish, J inches long, of the thickness of shop pack- 
ad. . Seeds numerous, small, round, brown, Huns. x. 13e° 2 
Stones in the sea, and on Fucuses. A. May—Sept. 
U, Tubular, branched, compressed. tone eae ied compres’ sa. 
Dill. 9. 8. and 10.8—Pet.: gaz. 9: Cy allowed by Dill. ta re- 
‘semble it, but he asserts it to be a different plant, though 
