82 CRYPTOGAMIA. ALGiE. Fucus. 
F . bis'tichus. Strap-shaped, mid-ribbed, flat, forked, very entire, the 
ends tubercled, sharp-pointed. 
Gmel. 1. A. 1. 
Between gristly and leathery, six inches high, olive green, changing to 
black when dry. Root circular, more than half an inch diameter, 
cemented to stones. Stems thick, flat, branched. Branches uniform, 
forked, pervaded by a mid-rib, leaf narrow. Fructifications on the ends 
of the branches, containing granules. Gmelin Fuc. 72. 
(Uniform Entire Fucus. F. ceranoides. Linn. E.) F. linearis. Huds. 
578. F.filiformis. Gmelin. Hocks and stones in the sea. (At Christ¬ 
church, Hants. E.) P. Jan.—Dec. 
D. (2) Flat, mid-ribbed, pellucid. 
F. membrana'ceus. Membranaceous, pellucid, forked, mid-ribbed: 
with a few lateral branches. 
Tumi. Fist. 87— Staclcli. 6— E. Bot. 1758. 
About five inches high, flat, expanding horizontally for six or seven inches, 
pale brown yellow. Stem wire-like, cartilaginous, dividing into forks, 
and pervading the foliage in form of a mid-rib. The leafy part thin, near 
half an inch broad, transparent, with scattered clusters of regular dots. 
These dots are th q fructification ; (which is situated near the apices, con¬ 
sisting of largish, roundish, dark-brown seeds, bordered by a wide, pel¬ 
lucid limbus, lying upon each side of the frond, adjoining the mid-rib, at 
first covered with a thin pellicle, which soon vanishes. Turn. Hist. 
Pellucid Fucus. E.) First discovered by Mr. Stackhouse at Sidmoufch, 
Devonshire, near the Western promontory, and figured in his admirable 
work on the Fuci. (Since found in St. Austell’s Bay, Cornwall, by Mr. 
W. Rashleigh. Turn. Hist. Scottish coast. Mr. Brodie. E.) 
F. esculentus. Simple, undivided, sword-shaped; stem four-cor¬ 
nered, running through the whole length of the leaf; wigned at 
the base. 
Hook. FI. Lond. 84— (Turn. Hist. 117— F.Bot. 1759. E.)— FI. Han. 417— 
Lightf. 28, at p. 938— (Gmel. 29. 1, wants the wings at the base of the 
stem.) 
Stem thick, broad, four sided, winged at the base with flat sword-shaped 
leafits; leaf very large, penetrated through its whole length by the stem, 
which is visible on both its surfaces. In these circumstances it differs 
from F. saccharinus. Linn. Sometimes from five to ten yards long, or 
more, olive-coloured. Stems solid, round, upright, pervading the whole 
length of the leaf. Leaf extremely long, rounded at the base, narrower 
towards the end, diaphanous, wonderfully plaited and curled. Gmelin 
Fuc. 200. In Hudson’s Synonym, for FI. Dan. read Gmelin. 
(Esculent Winged Fucus. Dabe?'locks or Tangle, in Scotland. F. 
jimbriatus. Gmelin. F. tetragonus. Linn. Tr. 3. p. 140. F. teres. Ditto. 
Laminaria esculenia. Agard. Hook. E.) Sea rocks and stones. Cum¬ 
berland and Scotland. Weymouth and the Cornish coast. (In deep 
water at Acton Castle, Cornwall. Mr. Stackhouse. Near Belfast. Mr. 
Templeton. Bantry Bay. Miss Hutchins. Turn. Hist. E.) 
P. Jan.—Dec.* 
* (This plant is much eaten in Scotland, and frequently exposed for sale in the 
markets. It is thought to strengthen the tone of the stomach. The mid-rib only, 
stripped of its foliaceous part, is eaten raw, and is in perfection about September. E.) 
