CRYPTOGAMIA. ALG, Fucus. B. Leaves like a Pon. 
Gmel. 2. B-Stackh. 5—E, bot. 474—Fl. dan. 106-Giseke 75m 
Dod. 480, 2~Ger. em. 1569. 7—Park. 1293. 6; c. of the 
three figures that on the right hand. 
Thread-shaped, compressed, zigzag, each side toothed, with : 
rudiments of leaf-stalks or fructifications. Fructifications spin- 
dle-shaped, beaked at the end, alternate on fruit-stalks. Leaves 
spear-shaped, smaller than oI Linn. Pods very nu- 
merous, oblong-egg-shaped, scored across, filled with slime con- 
taining numerous. granules. Substance leathery, 4 feet long, 
dark olive, black when dried. Gmetin fuc. 81. Sometimes 4 
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. 
SrackHovsz. ‘The secondary 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 ex- 
tremity 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 fructi- 
fication; but in examining this plant the pods may be found 
upon short foot-stalks ina very minute form with the appearance 
of the transverse partitions, and this ina very young state, before 
they become turgid. Major Vetiey. Leaves and pods not 
distinct ; the leaves in the more advanced state of growth as- 
stme the appearance of pods, from + of an inch to 1 or 2 inches 
long, and toa zg to £ 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 termina- 
tions of the pods. i 
Rocks and stones in the sea. P. Jan.—Dec. 
87 
F. Compressed, much branched, zigzag: leaves pod- siliculo’sus. 
like, oblong, sharp-pointed. 
a Stackh, it. 11. 
This species is not uncommon. About 6 or 9 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 
pods though roundish are sharp pointed, have no cavities nor 
fibres. stretched lengthwise, nor transverse furrows on the out- 
side 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 species I have seen, As the F. siliquosus has never 
been found in fruit may not it be this plant after having dis- 
charged. its seeds, its pods then becoming air-bladders ? Mr, 
ACKHOUSE. 
On the coast of Cornwall. 
