99 



FUCACEjE. 



I Thallogens. 



Dowerfbl rcmcdv in eases of goitre. The burnt sponge formerly administered in similar 

 Eases ,,r 1 .l,i.UvWed its efficacy to the Iodine it contained ; and it is also a very curious 

 l'„, lint the stems of a sea-weed are sold in the shops, and cuewed by the inhabitants 

 in South america, wherever goitre is prevalent, for the same purpose. Ilus remedy is 

 termed bv th.-iu I'alo C<ito (literally, goitre-stick), and consists ot fragments oi the Sar- 

 ,„ bacciferum and Laminarias above alluded to. Iodine is principally obtained m 

 pe from the ashes of the Fuci vesiculosa, nodosus, ceranoides, and serratus. 



Suborder I.— Vaueheria. 

 Proud mono— or pleio- 

 roous, without 

 bark, i he utricles form- 

 ing a lateral branchlet, 

 proceeding either from 

 the npper Joinl of the 

 branch, oi occasionally 



from the. lowest. 



Tribe i- Hydrogas- 



trid.f — Frond produced 



from << tingle vesicle or 



i irelyfrom teveral 



iHnuout and 



loosely int. ru-oren. 



Bydrogastrum, D n. 



Botrydium. Wallr. 

 ococcum, Desmas. 

 Vaucheria, D. C. 



Bctotperma, Vauch. 

 Bryopsl i, ' 

 Valonia, ffl 



I'liiisyilrinu, Kaf. ? 



i. ii. SA i k. 

 Lamarkia, Olivi. 



Cabrera. 

 Span I wax. 



i ribe 9. Dasycladidse. 

 — Frond monosiphonous, 

 continuous, or jointed, 

 „;il, verticiUate branch- 

 es, which art fiuUgiale, 

 led, and have the last 

 ■ transformed into a 



Chamsedoris, Wont 

 Dasycladua, Agh. 



yfprtidiwn, Kaf. 

 Neomeris, I 

 Cy polia, Came. 



Tribe :>■ Ectocarpldae. 

 1 , con- 



ing m it tingle row of 

 cells, variously branched. 

 i derived from 

 '. either ui the end o/ 

 tin- branches, or of Vie 

 lot, r 



Lelblinia, Endl. 



I lory. 

 i bantransla. Fries. 

 in. in, neUa, Bory. 

 iria, Rons. 

 Bctocarpus, Lyngb. 

 foya, Galium. 

 Vacrocarput, Bonnem 

 mm, Raf. .' 

 ■ in. Raf. ? 



■ Hum 



Lyngbyella, Bory. 



iih.' 



Tribe 4. Itatrachosper- 

 mlds — Frond pc 

 phonous, composed 

 primary thread tur- 

 sided by parallel ac- 

 ts** i 



GENERA. 

 terminal or lateral, clus- Padina, Adam, 



ten d, 



Batrachospermum, Roth 



Charotpermum, Lk. 



L/rupnrnalilia, Bory. 



Monilina, Bory. 



Thorinia, Bory. 



Lemanina, Bory. 



/.. latinaria, Roussel. 



'V nriiU iria, Bonnem. 

 I Is era, l.ninx. 

 Acflnotrichia, Decaisne. 

 Galaxaura, Lamx. 



Dichotomaria, Lamk. 



Alytium, Agh. 



Microthoe, Dec. 

 Tliorea, Bory. 



Polyoma, Palis. 

 Myriocladia, J. Agh. 



JEtjira, Fries ? 



Tribe 5. Chordaridx. — 

 Frond polysiphonous, 

 with flocks proceeding in 

 all directions /nun tin' 

 medullary substance, free 

 in the drcumft rence. 



Cruoria, Fries. 

 Myrionema, Orev. 



Elachista, Aresch. 

 Mesogloia, Agh. 

 Chordaria, Agh. 

 Leathina, Gray. 



Corynephora, Agh. 



Clavalitta, Bory. 

 Liebmannia, J. Agh. 



Suborder II. — Ealyse- 

 rea. Frond polysipho- 

 nous, barked, jointed, 



or continuous. Vesi- 

 cles scattered over the 

 surface of the frond, 

 or collected into heaps. 



Tribe 1. Bphacelaridte. 

 ■ — Frondjointed ; vesicles 

 lateral, solitary. 



Sphaoelaria, inmib. 



Delisella, Bory. 



Lyngbyella, Bory. 

 Mj i lotrichia, Harvey. 

 Cladostephus, Agh. 



TribeS. DictyotkUe.— 

 Frond continuous, mem- 

 branous, besides tup- 

 port ,1 In flocks, collected 

 in heaps,or scattered over 



Hi, upper surface of the 



frond. 



Ilalyseris, Targ. 



Neurocarpon, Web. 



Dictyopteris, Lamx. 



Polypodioides, stuck. 

 Dictyosiphon, ftn v. 

 Dlctyota, Lamx. 

 Zonaria, ./ Agh. 



StiffHa, Nardo 



Zanardinia, Xardo. 



Numbers. Gen. 



Trattinickia, Web. 

 Pndinella, Aresch. 

 Cutleria, Grev. 

 Arthrocladia, Dub)/. 



Elaionema, Berk. 

 Scytosiphon, Agh. 



Cliorda, Stack. 



Filum, Stack. 



Chordaria, Lk. 

 Soranthera, Poslels. 

 Punctaria, Grev. 

 Asperococcus, Lamx. 



Enccelium, A^\\ 



Hydrochithrus, Bory. 

 Striaria, Grev. 



Carmichaelia, Grev. 

 Stilophora, J. Agh. 

 1 Hildenbrandia, Nardo. 



Ralfsia, Berk. 



Tribe 3. Laminaridae. 

 — Frond continuous, co- 



riaceous, sometimes bear- 

 ing bladders. Vesicles 

 scattered, or collected in 

 heaps, supported hi/ flocks, 

 growing on both sides of 

 the frond. 



Lessonia, Bory. 

 Macrocystis, Agh. 

 Nereocystis, Postcls. 

 Ecklonia, Hor/wm. 

 Laminaria, Lamx. 



Qigantea, Stack. 



Saccharina, Stack. 



Mutafolia, Stack. 



Polysehidia, stack. 



Palmaria, Lk. 



Lami Hast rum, Duby. 



Fasciata, Gray. 

 Capea, Montagu. 

 Haligeria, Dec. 

 Alaria, Grev. 



Orgya, Stackh. 

 Thalassiophyllum, Post. 

 Agarum, Grev. 



Myriotrema, Lapyl. 

 Costaria, Grev, 



Tribe 4. Sporochnidoe. 

 — Frond continuous, be- 

 tween cartilaginous and 

 membranous,flocksform- 



ed astride a capitate re- 

 ceptacle, bearing the I'esi- 

 cles. 



Sporoehnus, Agh. 

 Desmarestia, Lamx. 



Desmia, Lyngb, 



Dichlora, Grev. 



Trinitaria, Bory. 



Hippurina, Stack. 



Hyalina, stack. 



Fiagellaria, Stack. 



Suborder III. — Fucece. 

 Frond polysiphonous, 



often bladdery. Vesi- 

 cles seated in hollow 

 conceptacles formed of 

 81. Sp. 4.52. (Endl.) 



a folding in of the 

 frond, pierced by a 

 pore, and surrounded 

 by flocks ; concepta- 

 cles scattered or col- 

 lected upon a recep- 

 tacle. 



Tribe 1 . Leraanid;e. — 

 Frond hollow, wholly 

 converted into a recepta- 

 cle. 



Lemanea, Bory. 

 Nodular ia, Link. 

 Gongycladon, Link. 

 Trichogonea, Palis. 

 Vertebraria, Bouss. 



Tribe 2. Fucids.— 

 Conceptacles not collected 

 upon a receptacle. 



Fucus, X. 



Cervina, Gray. 



Halidrys, Stack. 



Bifurcaria, Stack. 

 Ozothalia, Dee. and Th. 

 Pelvetia, Dec. and Th. 

 Carpodesmia, Grev. 

 Myriodesma, Dec. 

 Ilimanthalia, Lyngb. 



Lorea, Stack. 

 Xiphcphora, Montagu 

 Splachnidium, Grev. 

 Durvillaea, Bory. 

 Hormosira, Endl. 



Moniliformia, Lamx. 



Monilia, A. Rich. 

 Castraltia, A. Rich. 



Scaberia, Grev. 



Tribe 3. Cystoseiridse. 

 — Conceptacles or recep- 

 tacles distinct from the 

 frond. 



Coccophora, Grev. 

 Halidrys, Lyngb. 



Biliquaria, Gray. 

 Blossevillea, Dec. 



Cystophora, J. Agh. 

 Cystoseira, Agh. 



Acinaria, Targ. 



Machaia, Gray. 



Catenaria, Raf. 



Ascophylla, Stack. 



Ericaria, Stack. 



Monilifera, Stack. 

 Sargassum, Rumph. 



Baccularia, Gray. 



Halochloa, Kutz. 



Myagropsis, Kutz. 



Spongocarptes, Ktitz. 

 Turbinaria, Bory. 

 Carpacanthus, Kutz. 

 I'hyllospora, Agh. 

 Carpophyllum, Grev. 

 Marginalia, A. Rich. 

 Scytothalia, Grev. 



siockhousia, Lamx 

 Seirococcus, Grev. 

 I'olyphacum, Agh. 



Osmundaria, Lamx 



Position.— Confervacese. Focaoeje.— Ceramiacese. 



