/ J o [ 474 3
F U C U S filiquofus.
Podded Fucus.
C R Y P T 0 G A M I A Alga.
G en. Char. Seeds produced in cluttered tubercles,
which burft at their fummits.
S pec . C h a r . Frond comprefled, alternately branched.
Air-bladders of many cells, comprefled, beaked.
Frudtification in lanceolate folid procefles, ftudded
with clutters of feeds.
Syn. F ucus filiquofus. Linn. Sp.PI. 1629. Hudf. 574.
With. F. 4 . 8 8 . Stackhoufe Nereis Brit. t. 5 . Good-
enough and Woodward in Linn. Tr. F. 3. 124.
F. anguftifolius, veficulis longis filiquarum aemulis.
Ran Syn. 48.
O n rocks and (tones in the fea, and frequently thrown up
on the beach.
Root an expanded tubercle. Whole plant flat, of a dark
olive brown. Stem comprefled, without a rib, much and alternately
branched, a little zigzag, from one to four feet long,
fmooth. Air-bladders on fhort footftalks, lanceolate, compref-
fed, beaked, feparated within into many cells by tranfverfe partitions,
each of which making a little ftriCture on the outfide
gives the whole a jointed or pod-like appearance. The cells
have alfo white fibres funning acrofs them internally. The
fructification is quite diftinCt from the above, confifting of
clufters of feeds ftudded into, and imbedded through the fub-
ftance of, feveral leaf-like folid procefles on footftalks, refem-
bling the air-bladders except in being lefs beaked, not jointed,
but on the contrary granulated on their furface by the projecting
clufters of feeds. This fructification appears to have been
firft rightly underftood very lately by Mr. Dawfon Turner of
Yarmouth, who favoured us with the fpecimen here delineated;
but upon examination every old fpecimen in our pofieffion is^ in
the fame ltate, particularly fome gathered at Leith in the winter
of 1 78 1 , for in that time of the year this tribe of plants
generally produce their feeds.
The F.filiquofus is often found infefted with the Sertularia
geniculata covering its younger branches.
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