F U C 
veficles roundifti, innate, ending in fiibulate fpines tuber- 
cled at the bafe. 
45 Fuchs fibrofus. Round, unarmed, much branch¬ 
ed : veficles roundilb, moniliforni, innate : leaves entire, 
lower ones Hnear-ia iceolate, uper ones fetaceous, 
46. Fucus ligulatus. Somewhat cartilaginous, flat, 
veiniefs, bipinnate-ligulate ; liguies oppofite, two-rowed, 
the extreme ones linear-lanceolate and I'pinous-toothed. 
47. P'uciis efcuientus. Simple, undivided, enfiform, 
on a pinnate (talk ; divifions two-rowed, oblong, veiniefs, 
48. Fucus ceranoides. Somewhat forked, linear, en¬ 
tire, fcatteredly pinnate; divifions many-cleft, fomewhat 
radiate, tubercled linear-lanceolate rather tumid atid 
pointed at their tips. 
49. Fucus membranaceus. Linear, forked, membra¬ 
nous, dotted, diaphanous, very tender, with an undulate 
nerve fcatteredly proliferous. 
50. I'ucits alatus. Membranous, very tender, fome¬ 
what forked, with alternate decurrent fegments : tuber- 
4;les globular, feflile. 
51. Fucus dentatus. Membranotts, branched, almoft 
nervelefs, alternately pinnatifid ; branchlets linear, cut at 
top, with acute fegments : fruit racemed. 
52. Fucuslaceratus. Membranous, very tender, (light¬ 
ly veined, with linear obtufe branches, undulate and 
curled-laciniate on their margins: tubercles immerfed. 
53. Fucus laciniatus. Membranous, branclied, vein¬ 
iefs j brandies dilated, palmate, obtufe witli flat margins : 
tubercles in the marginal fringe, 
54. F Ltcus bifidus. Membranous, dilated, cloven, with 
divaricate obtufe fegments j tubercles marginal, fcattered. 
55. Fucus polyphylkis. Cartilaginons ; ftem roundifli, 
flat and toothed towards the top : leaves gradually di¬ 
lated, entire, 
56. Fucus flagellum. Stem ITmple, leaflefs, fubcori- 
aceous. 
57. Fucus acerofits. Leaflefs; flems round, branched ; 
branches two-rowed, crowded, every where befet with 
•filiform fpreading bridles. 
58. Fucus fragilis. Stems filiform, forked, brittle, 
flat-topped, leaflels. 
59. Fucusdebilis. Stems round, branched, fomewhat 
flat-topped, tubular weak, leaflefs. 
60. Fucus cuneiformis. Leaflefs: branches alternate, 
three-lided, jointed ; joints wedge.fonn ; angles fubulate, 
toothed. 
61. Fncits vifeidus. Stems round, forked, flat-topped, 
branched, two-horned at top. 
62. Fucus prolifer. Frondefeent, green, with ovate 
flat proliferous joints, 
63. Fucus hypnoides. Stem and branches vaguely 
fcatiered, filiform, round-comprelfed, cartilaginous, pin¬ 
nate, with fu.bnlatc fegments. 
64. Fucus flavus. Spongy: brancheseredt, fomewhat 
five-angled, laciniatc-toothed, areolate, polifhed. 
65. Fucus ciliatus. Membranous, tougli, pinnate, 
clothed and fringed with foattered fubulate molUy Ample 
procefles bearing tlie feeds in a globular tubercle. 
66. Fucus palmatus. Membranous, glabrous both 
fides, palmate ; fegments oblong, nearly fimple. 
67. Fucus edulis. Flefhy, wedge form, nearly fimple, 
glabrpus both fides, rounded at top, entire at the margin. 
68. Fucus angulatus. Stem flattilh : branches divari¬ 
cate, forked, cloven at top : tubercles lateral and axilla- 
fcattered, minute, opake. 
69. Fucus fafeia. Somewhat leathery, fimple, linear, 
tapering to both ends, undulate, entire, without ftem. 
70. Fucus phyllitis. Membranous, thin, fimple, li¬ 
near-lanceolate, entire, ona (hort compreflTed ftem. 
71. Fucus faccharinus. Leathery, fimple, fword-fhap- 
ed, on a round rigid ftem. 
72. Fucus digitatus. Cartilaginous, palmate, with 
fword-fliaped fegments, on a round ftalk: root fibrous. 
73. Fucus bicornis. Membranous, powdery, dilated, 
«lovenat top. 
VoL. Vin. No, 4S6. 
U S. 95 
74. Fucus ferrulatus. Stems round, branched: leaves 
linear, fimple, ferrulate. 
75. Fucus linearis. Flat, linear, forked, taper, acute. 
76. Fucus plumaris. Stem round, creeping, branched 
upwards; branches feather-like, leafy.. 
77. F’ucus folifer. Fronds flat, gradually dilated, 
forked ; the extreme ones warty, with a linear lanceolate 
entire leaf at the margin and top. 
78. F'ucus truncatus. Membranous, three and four¬ 
forked,- with truncate fegments crenate-curled at top. 
79. Fucus glacialis. F'lat, linear, forked, many-cleft, 
much branched, with a very fine fringe. 
80. Fucus filicinus. Leathery, nearly cylindrical, 
much branched ; branches fpread into an orb, with fron- 
dofe fegments near the tip. 
81. Fucus fruticulofus. Leathery, round, filiform, 
decompoundly branched above ; branches nearly fetace¬ 
ous, with alternate lax branchlets, and fmall pinnate 
denticulate fubdivifions. 
82. Fucus bulbofus. Palmate, with enfiform feg¬ 
ments: ftem flat, undulate on the margins below ; root 
bulbous, rough. 
83. Fucus rubens. Somewhat membranous, forked, 
proliferous in a chain-like manner ; branches elliptic ; 
branchlets dilated and cloven at top. 
84. Fucus Norvegicus. Cartilaginous, forked: bran- 
dies linear, entire, rounded at top ; tubercles hemifphae. 
rical, feated on the di(k. 
85. Fucus crifpus. Cartilaginous, forked, curled.un¬ 
dulate : branches dilated, entire: tubercles folitary, 
fcattered, immerfed, concave on one fide. 
86. Fucus mamillofus. Cartilaginous, forked, chan¬ 
nelled on one fide: branches dilated, entire, clothed on 
both fides with mamillary tubercles. 
87. Fucus geniculatus. Stem and branches jointed; 
frond forked, pellucid, equal: veficles terminal. 
88. Fucus lortus. Forked, linear, acute, tubercled on 
all fides, with a cup.like bafe. 
89. Fucus triqueter. Frond, two-edged, branched; 
leaves petioled, denticulate : veficles immerfed, oblono-, 
three-fided. 
90. Fucus racemofus. Stem round, creeping-branch- 
ed, lea.vefs : veficles obovate, in crowded racemes. 
91. Fucus trinodis. Stem round, branched 5 branches 
with three inflefted veficles, fubulate at top, 
92. Fucus fejiculofus. Round, branched, fcatteredly 
warty ; branches dilated at the bafe into a papillous ve- 
ficle. 
93. Fucus pyriferus. Filiform, forked: leaves enfi¬ 
form, folitary, ferrate; terminal-ones inflated, petioled. 
94. Fucus pygmsus. Cartilaginous, forked, dilated 
and palmate at top : tubercles globular, terminal perfo¬ 
rated at top. 
95. Fucu^s burfa-paftoris. Branched above; branches 
pinnate-branched : branchlets denticulate, with kidney- 
form winged feflile mucronate fcales at the top of the ex¬ 
treme ones. 
96- Fucus triangularis. Stem and branches linear, 
three-fided, ferrate, imbricate three-ways with fpreading 
two-pointed denticles : globules ferrate, felTile. 
97. Fucus capitatus. Stem roiind-depreffed j branch¬ 
es round, fubulate, alternate, much crowded; veficles 
racemed. 
98. Fucus corymbiferus. Linear, flat, forked, long, 
black: leaves alternate, diftant, ending in denticles ; 
globules terminal, crowded. 
99. Fucus dentatus. Membranous, nervelefs, red, 
fomewhat pinnate, with denticulate thickly dotted feg¬ 
ments. 
100. Fucus pilularia. F'lat, with alternate branches: 
frond pinnatifid, with lanceolate ferrate mucronate feg. 
ments ; globules folitary and in pairs, felfile and pedun- 
cled. 
101. Fucus hirfutus. Filiform, round, forked every 
where clothed with thick hair. 
B b 
19 *. Fu- 
