Download PDF

384 65. Lamina. 5.THALASSIOPHYT.E. Pl.cellaph.
XL. 65. LAMINARIA. FLake-weed.
Tlialliis flat, leatherlike, ribless; st'trps roundish; hold-
fasts fibrous; sporidia placed horisontalh' in superficial
mucilaginous warts, formed of jointed filaments.
1. Lamuiar'ia meynhranacea. Memlranaceous fiake-tueed.
Stirps roundish, compressed ; tliallus flat, linear, lanceo-
late, narrower at both ends; edge cut.
Fiiciis Plivllitis, Esper, 149 ; Turn. Hist. 164; EnsL Bot. 1331.
Ulva PiiNllitis, D& Candolle Fl. Fr. ?, 15.
Lnminaiia Pliyllitis, Lamour. Thai. 22.
Sea-shore; parasitical: annual.
TliaUl mostly aggregate ;
edge not cut.
2. Lajmnaria saccharina. Sugar fiake-^weed.
Stirps roundish ; ihallus fiat, linear, lanceolate, edge not
divided.
Focus lonsi«>imo, latissimo, cra?=t>que folio, DiUen in Raii Syn. 39, 1.
Fiicus saccl)arinu=, Lin. S. P. 1630.
Ulva saccharina, Be Canii. Fl. Fi: 2, 15.
Phasgonon balteiform's, fValk.
Lamiiiaria saccliaiina, Lamour. Thai. 22.
Sea-shores: perennial: summer.
j3. hidlala. ThaJIus buUated ; edge waved.
Fucus latissimus et loiigissinuis, oris crisp us, Dillen iri Raii Syn.SO, 1.
Fucus folio sinsularijloiigissimo, lato, in m«(iin rugoso, qui balieiformis
-^lici |)o(e>t, Raii Syn. 39, 1.
Ulva laiissima, Lin. Syst. Nat. 719.
Fucus saccharinus, Fl. Dan. 416 :
Ulva raescntcrifbrmis, Roth Cat. 1,210.
Engl. Bot. 1376.
V. lojigiss'nna. T/inl/us oblong, membranaceous, pointed.
Ulva longissima, Fl. Norv. 2, 128,
.3. Lam'mar'ia laiissimn. Broadest flake-weed.
Stirps short, roundish ; thallus expanded, flat, ribless,
elliptical, orbicular, mucilaginous.
Uiva ma\ima, Fl. Xorv. 2,7.
Fucus saccliarinus latissimus, Turn. Hist. 163.
L.amiiiaria saccluirina laiissima, .igardh Syn. 18.
Sea-shore.
Thalll gregarious, yellowish, nearly as broad as long.
3. Laminaria dig'itata.
Fingered fluke-weed.
Stirps roundish ; ihallus expanded into an oval, heart-
jsbape, cut in many short, shalk)w lobes ; edge not cut.