^^i*naus. 
CRYPTOGAMIA. ALGAE. 1942. Fucus. 1805 
Cartilaginous, forked, dilated and pa’mate at top; tuber- 
I ‘.nagiiii.inoj iv»iKcu> uitaivvi rtnu iiiaii..' at 
S'obular, termiiia perforated at top- £. Uot 12^2. 
j ^'fiorls. Branched above; branches pinriate brancf—^- 
denticulate, with kidney-form v.'ini;ed felfne 
fhe top of the extreme ones. Gme! t 8. 3. 
mucronate 
*^reme ones- Gmel t 8, 3. 
Sum and branch; s 'ine- ■, 3-fided, ferrate, imbricate 
r with fpreading 2-pointeu denticles: tilobnlcs ferrate, 
"•f. Stem roiind-depreffed; branche.s round, fubulate, alternate, 
fo,-- Crowded; veficles racenicd. Gmel 
^ yerar. Linear, flat, forked, long, black; leaves alternate, 
Ga *1 denticles : globules terminal, crowded. 
^ ' 9 * 
ar. Membranous, nervelefs, red, fomewhat pinnate, with 
Dan. 2’ii r‘ 
Fia,^ with alternate branches : frond pinnarifid, with 
^ceolate urrate mucronate f graents: globules foliiary and in 
^cffiieand pednncled. G;«r/ to. 2. 
Us. Filiform^ round, forked, every where clothed with thick 
"■'ca/rf ‘ » 
**cule^t ’T^uch branched, hairy Gmel. n. a. 
wV Cartilaginous, filiform, much branched; branches linear, 
.'^^tginai tubulate cre£l: fpines. Ner- brit S- 
‘Mus. Cartilaginous, branched; branches nearly alternate, 
*y pinnatifid ; fep-ments obtnfe, callous, with ovate feffile 
’"‘^^'•cles. 
Nettie what horny, much branched;branches tapering to both 
^“^neus. 
Sj nearly doub’y pinnatifid; fegments oppofite, fpread, obtufe, 
VrW/ ‘PP- Ner. Brti. 12- 
Cartilaginous, linear, forked, with linear acute branches 
' '' ith ipinous horizontal teeth; tubercles globular, feflile. 
/. 5 „». 
p Cartilaginous, repeatedly pinnate, naked below ; 
jlj '^*''‘fions alternate, compreifed, nearly linear ; ultimate-oiies 
* tubercled at top. E,ng B®/. 1477. 
jji^v«//«j. Cartilaginous, much branched; branches much 
b I nbfcurely veined, dilated when barren: tubercles glo- 
2-rowcd forked or pointed ftalks. Eng. 
b Somewhat cartiiaginous, mtich branched; ultimate 
inches fubulate, alternately pctStlnate on one fide; tubercles 
Eng. Baf. 1242. 
and f mtich branched; branchtets with fimple 
’^^‘Uulof tubercles fcattered. GmeL t. 18.2. 
flan^ ^^rtilaginous, much branched, deprefled below; branches 
CacK^r^'^’ fptead; branchlets nearly o;’pofite, pinnately fetiferous 
*tle: bridles fubulate, thickened at top. Gmel. 18. j. 
