102 
CRYPTOGAMIA. ALGiE. Fucus. 
(Prickly Fucus. Sporochnus aculeatus. Agard. Hook. E.) Rocks and 
stones in the sea, Devonshire,, Cornwall, and Northumberland. 
P. May* —Oct. 
Var. 2. muscoides. Huds. 590. Thread-shaped: branches very numerous, 
diverging, zigzag. 
Rocks in the sea. Yorkshire, Northumberland, but not common. 
P. May—Oct. 
Var. 3. caudatus. Stalks cylindrical, branches more subdivided. Lightfoot, 
926. 
This has been well compared by Gmelin to the tail of a sorrel horse, which 
in its recent state it much resembles, the green hue arising from its decay. 
It is much more glutinous than F. aculeatus. 
Rocks off the Bill of Portland. Mr. Stackhouse. 
F. PURPURAs r CENS. Thread-shaped, much branched: branches alter¬ 
nate ; little branches crowded, hair-like; tubercles egg-shaped, 
distant, within the substance of the branches. 
(Turn. Hist. 9— E. Bot. 1243. E.)— Velley 2 ; (but less branched and the 
ultimate branches less hair-like than in my specimens. The figure 
seems to have been drawn from a young plant.) 
The tubercles, (which are yellow and oval when ripe,) when held between 
the eye and the light, appear transparent, and when nearly ripe have a 
red spot in the centre, which we suppose to be a cluster of minute seeds. 
Lightf. Boot fibrous. Plants from six to twelve inches high; rather 
gristly, but tender; green when young, purplish in maturity, in the 
former case nearly opake, in the latter more transparent. 
(Purplish Knotted Fucus. F. tuberculatus. Lightf. Spluerococcus pur - 
purascens. Agard. Plook. Rocks and stones in the sea; not uncommon. 
P. June—Oct. E.) 
F. plica'tus. Gristly, semi-transparent, hair-like, branched, matted 
together. 
(I Turn. Hist. 180— E. Bot. 1089. E.)— Stackh. 7-—Gmel. 14.2— Pluk. 184. 
2— FI. Bail. 408. 
About six inches high; horny, tough, orange red, rigid and brittle when 
dry. Stems very numerous, crowded together at the root, cylindrical, 
serpentine, little branches from the sides, and forked at the end. Gmel. 
Fuc. 142. Sometimes only three or four inches high; fine dark pinky 
purple, readily bleaching to a fox colour, transparent in its bleached 
state, scarcely so when in full colour. Ends of the branches either forked 
or entire. Gmelin describes his plant as orange red, and Plukenet’s is said 
lobe gold coloured; ours is like isinglass in the bleached state, in which it 
usually presents itself. (Fructifications small, globular, lateral, solitary, 
or in clusters. E.) 
(Matted Fucus. Splicerococcus plicatus. Agard. Hook. E.) Rocks and 
stones in the sea. A. May—Nov. 
F. confervoi'dks. Gristly, thread-shaped, branched: branches very 
long : fructifications lateral, globular, sessile. 
(Turn. Hist. 84. (85 ?)•— E. Bot. 1668 (1222 ?) E.) — Stackh. 8 — FI. Dan. 650. 
Gmel. 13. 
Two feet high, or more; cartilaginous, yellowish green, or brownish purple. 
Stem upright, thickness of fine packthread. Branches very long, often 
