104 
CRYPTOGAM IA. ALGA:. Fucus. 
About six inches high, the size of small twine. Root solid. Branches 
numerous, irregular, crowded upwards, nearly as large as the stem. Cap¬ 
sules in the bosom of the leaves, on short fruit-stalks, about the size of a 
small pin’s head; pale, semi-transparent. Mr. W oodward. 
(Brownish Fucus. F. variahilis . Linn. Tr. iii. 220. Sphcerococcus suh- 
fuscus. Agard. Hook. E.) Cromer on the coast of Norfolk. Mr. Wigg. 
(Also in Scotland and Cornwall. E.) A. Winter. 
F. ampitib'ius. Thread-shaped, much branched: branches alternate, 
rolled in : little branches very short, many cleft: fructifications 
oblong, on fruit-stalks. Huds. 5f)0. 
( Turn. Hist. 109— E. Bot. 1428. E.)— Ray. Syn. 2. 6. at p. 60. 
About an inch high, woody, livid or greenish, to blackish. Stem soon be¬ 
coming branched. Branches dividing and subdividing, alternate, the 
ultimate branches extremely fine. On the sides of the branches there are 
short teeth, which swell and coil up; they contain slime, and seem to 
perform the office of fructification. Gmelin. Fuc. 135. 
(Amphibious Curve-pointed Fucus. E.) F. scorpioides. Huds. Ed. 1.471. 
Rocks and stones in the sea, and in salt-water ditches and salt marshes, 
(frequently attached to the roots of other marine plants. Turner. E.) 
P. July—Sept. 
F. VARiABhLis. Thread-shaped, much branched, rough: branches 
tiled, hair-like: little branches very short, fasciculated, finely 
toothed. Huds. 591 • 
Leaf half a foot long, rather stiff, opake, black. Branches very numerous. 
Little branches with many clefts, toothed, teeth blunt. Huds. n. 62. (The 
terminating pencil-like bundles of fibres are very characteristic. E.) 
(Tufted Hair-like Fucus. E.) F. confervoides. Huds. Not F. confer - 
voides. Gmel. Syst. Nat. or Jacq. Coll. iii. 14. 1. Stones and rocks in the 
sea, in Yorkshire and Cornwall. P. May—Oct. 
F. lano'sus. Hair-like, forked, much branched, rough. Linn. Fruc¬ 
tifications tubercled, lateral. Huds. 
A span high, resembling black wool. Rough with dots placed nearly in 
whirls and only visible when magnified. Linn. This plant does not 
appear to have been found lately, it rests therefore solely on the autho¬ 
rity of Mr. Hudson. 
(Black W oolly Fucus. E.) Rocks and stones in the sea. Isle of Walney, 
Lancashire. P.July—Oct. 
G. (2) Capillary , pellucid. 
F. tixrix. Hair-like, tubular, unbranched: many threads from the 
same base. 
Stackh. ii. 12. 
From two to six inches high, not thicker than a pin, smallest at bottom with 
a spiral seam. Its top is frequently found decaying, and then ends in 
filaments which are continued through the plant. These filaments are 
pellucid, with transverse partitions and dark granules, which may be the 
seeds. I think from its fructification that it is not properly a Fucus. Mr. 
Stackhouse. 
(Unbranched Tubular Fucus. E.) First found by Mr. Stackhouse at 
Penzance, and at Acton Castle, Cornwall. 
