CRYPTOGAMIA. ALGAE? Fucus. ‘Ci Jointed, like a’ 89 
Necklaces * ~ 4 £ 
F. Stems° obscurely jointed > branches “in whirls, awl-verticilla’tus 
shaped, or bristle-strap-shaped.: Licarr: 962. 
Lightf. 31. at p- 962... iat tee 
Pale or whitish green, membranaceous. » Stems about 5 
inches-high; about the:size of ai small goose. quill, so obscurely 
jointed as to be almost cylindrical... Branches 3 to 5 in a whirl, 
an inch or-more long, gradually shorter towards the end of the ~ 
stem, beset with bristle-shaped leaves alternate or without order. 
Fructifcations xed, visible with a microscope at the ends of the S 
branches.) Licurr, Colour olive green, sometimes yellow. 
Stem hollow, with inflated knots, Secondary branches in whirls, 
with 4 or.5 oblong hollow leaves. In these branches the fruc- 
tification is clearly discernible.. Mr. Stackuousk. © > > 
‘On the rocks»of the little isles of Juras Licutr. _July< 
F. Jomted, very much branched joints egg-cylindrical,articula ‘tus. 
_ tubular : branches opposite or in san 
Stackh. 8. a. b.—H. ox. xv. 8. row 2. 14s 
One to 3 inches high, pale ted purple. Seeds in the termi- 
nating joints’ and in others:growing in whirls at the ends of the 
branches. Licurroor. Stem short, slenderer than the branches, 
joints egg-cylindrical.. - Branches opposite, jointed, ‘swelling in 
the middle; leafits only 2, or 4 in a whirl, which distinguishes 
it wom F, verticillatus. ‘The branches resemble strings of 
oval beads, sharp at each end, resembling some of the jointed 
confervz, and still more some of the corallines. The colours 
pink, pale purple, or yellowish green; beautifully transpa- 
rent. Fructifications minute blood-red dots, imbed in the 
nape joints. It varies in the flatness or roundness of the joints ; 
the round jointed sort is tubular, but many of the compressed 
Kinds appear to be solid. Sracknouse. p- 29. who since informs 
me that ig has found a sort with the fructifications prominent, 
not imbedded, which will probably prove a distinct species. 
Ulva articulata. Hups. Rocks and stones in the sea, about 
low-water mark, Cornwall, Devonshire, Dorsetshire, Sussex. 
Hips. Jura, Cransay, Skye, &c. Licurr. ae 
A. March—Nov. Hups.—Aug. Lieutr. 
F, Gristly, creeping, branched, jointed: joints oblong, re'pens. 
ace Pate > : e. : 
Stems narrow, matted together, set with narrow straps. 
Shoots numerous, crowded, 4 an inch high, broadest upwards, va. 
riously and irregularly divided into segments, and. sometimes 
appearing jointed, flat, (not hollow,) pellucid, tender, dull pur- 
Ple below, dirty green above. Dirt. 51. It has many fine 
-Tunners entangled together, and emitting small claw-like liga. 
