*8 
CRYPTOGAMIA. ALGA?. Fucus. 
Thread-shaped, compressed, zigzag, each side toothed, with rudiments of 
leaf-stalks or fructifications. Fructifications spindle-shaped, beaked at 
the end, alternate on fruit-stalks. Leaves spear-shaped, smaller than the 
pods. Linn. Pods very numerous, oblong-egg-shaped, scored across, 
filled with slime containing numerous granules. Substance leathery, four 
feet long, dark olive, black when dried. Gmelin Fuc. 81. Sometimes four 
feet long; the stalk compressed, zigzag or waved, nearly of the same 
thickness throughout. Pods varying much in size as well as in the 
length of the foot-stalk, and in that of the beak. Stackhouse. The secon¬ 
dary branches which proceed from the main stem resemble a long strap¬ 
shaped cartilaginous leaf, from whence originate in a lateral direction the 
pods, and at the extremity of the pod is frequently found a continuation 
of that cartilaginous leaf, which appearance seems to favour the opinion 
of Gmelin that the pods are only the leaves in a state of fructification ; 
but in examining this plant the pods may be found upon short foot-stalks 
in a very minute form with the appearance of the transverse partitions, 
and this in a very young state, before they become turgid. Major 
Velley. Leaves and pods not distinct; the leaves in the more advanced 
state of growth assume the appearance of pods, from a quarter of an inch 
to one or two inches long, and from one-tenth to a quarter of an inch 
broad, but though separated by partitions they contain nothing like seeds. 
Mr. Stackhouse suspects that the seeds may be found in the beak-like ter¬ 
minations of the pods. 
(Podded Fucus. E.) Rocks and stones in the sea, very common. 
P. Jan.—Dec. 
F. siliculo'sus. Compressed, much branched, zigzag: leaves pod¬ 
like, oblong, sharp-pointed. 
{Turn. Hist. 159. E.)— Stackh. ii. 11. 
This species is not uncommon. About six or nine inches high; branches 
with knobs and hollows at the edge, the marks of leaves torn off as 
happens in the F. siliquosus. The fruit or pad's though roundish are 
sharp-pointed, have no cavities nor fibres stretched lengthwise, nor 
transverse furrows on the outside as in F. siliquosus , but they have a 
tubercled appearance. The meshes as well as the seeds and globular 
masses are smaller than in any other species I have seen. Mr. Stackhouse. 
{Fructification always situated at the extremities of the stem and 
branches, consisting of receptacles, of which there are seldom more than 
five or six on any branch, of a form between linear and lanceolate, com¬ 
pressed, scarcely an inch long, or a line wide; distichous, alternate, 
separated by small intervals, supported upon extremely short peduncles, 
externally even, though perforated all over with minute pores, under 
which lie imbedded spherical receptacles containing a mass of brown 
seeds, together with a profusion of white jointed fibres. Turn. Hist. 
Zigzag Podded Fucus. E.) F. siliquosus j3. Turner. On the coast of 
Cornwall. 
C. Jointed; like a Necklace. 
F. concatena^tus. Thread-shaped, greatly branched, forked: branches 
swollen out like the beads of a necklace by the distended vesicles 
placed at intervals within them. 
Velley 2. 1. 
Thread-shaped; branches very numerous, opposite or alternate, often 
ending in forks .—-Bladders egg-shaped, in the substance of the stem and 
