436 
GENERA. 
§ 1. Fucoide^, Ag. 
Sargassum, Ag. M. 
Turbinaria, Lamour. [Gymnogongrus, 
Carpophyllum, Grev. Martius.] 
Cystoseira, Ag. 
Halidrys, Lyngb. 
Carpodesmia, Grev. 
Seirococcus, Grev. 
Scytothalia, Grev. 
Coccophora, Grev. 
Fucus, L. Ag. 
Neurocarpus, W. et § 11. Gastrocarpe^e, Myriotrichia, Harv', 
Grev. 
Iridea, Bory. 
Halymenia, Ag. 
Dumontia, Lamour. 
Catenella, Grev. 
§ 7. FURCELLARIEiE, 
Grev. 
Furcellaria, Lamour. § 12 . CaulerpejE, 
§ 8. Spongiocarpe.e, Grev. 
Grev. Caulerpa, Lamour. 
Polyides, Ag. Chauvinia, Bory. 
Spongiocarp us, Grev.^ 13. Ulvace.e, Lamr. 
§ 17. Ceramie.e:, Ag. 
Polysiphonia, Grev. 
Hutchinsia, Ag. 
Grateloupella, Bory. 
Brongniartella,Bovy, 
Dicarpella, Bory. 
Grammita, Bonnem, 
[Carradoria, Mart.} 
Dasya, Ag. 
Gailiona, Bonnem. 
Himanthalia, Lyngb. § 9. Floride^, Lamr. Anadyomene, Lamour. Rhodonema,M?iYtcns. 
Lorea, Lamour. Claudea, Lamour. 
Moniliformia, Lamour. Oneillia, Ag. 
Splachnidium, Grev. Delesseria, Lamour. 
Polyphacum, Ag. 
Osmondaria, 
Lamour. 
Scaberia, Grev. 
Wormskioldia, Spr. 
Nitophyllum, Grev. 
Dau'sonia, Bory. 
Hymenena, Grev. 
§ 2. LicHiNEiE, Grev. Rhodomenia, Grev. 
Lichina, Ag. 
§ 3. Laminarie^e, 
Bory. 
Durvillaea, Bory. 
Lessonia, Bory. 
Macrocystis, Ag. 
Laminaria, Lamour. 
Agarum, Bory. 
Alaria, Grev. 
Costaria, Grev. 
Porphyra, Ag. 
Ulva, L. 
Phylloma, Lk. 
Tetraspora, Lk. 
Tetrasporella, Gaill. 
Phycomyces, Kunze. 
Enteromorpha, Lk. 
Solenia, Ag. 
Botryocarpa, Grev. 
Thanophora, Ag. 
Plocamium, Lamour. 
Microcladia, Grev. 
Odonthalia, Lyngb. 
Dictyomenia, Grev. 
Volubilaria, Lamour. Valonia, Ag 
Amansia, Lamour. Alysium, Ag. 
Rytiphlaea, Ag. 
Rhodomela, Ag. 
Asperocaulon, Gvev, 
Thorea, Bory. 
Thorella, GailL 
Ceramium, Roth. 
Boryna, Gratel. 
Spyridia, Harv. 
Griffithsia, Ag. 
Wrangelia, Ag. 
[Hydrosolen, Mart.] Calidictyon.Grev. (95) 
Ilea, Fries. 
Fistularia, Grev. 
Bangia, Lyngb. 
Bangiella, Gaill. 
Sphaeroplethia, Dub. 
§ 4. SpoROCHNOiDEiE, Alsidium, Ag. 
Grev. Bonnemaisonia, Ag. 
Desmarestia, Lamour. Delisea, Lamour. 
Calithamnion, Lyngb, 
§ 18. CONFERVE^, Ag. 
Bulbochaete, Ag. 
Bulbochcetella, Gaill. 
Conferva, L. Ag. 
Ingenhouzella, Gaill. 
Agardhinella, Gaill. 
§ 14. SiPHONE^E, Grev. Rothella, Gaill. 
Codium, Stackh. Dictyonema, Ag. 
Flabellaria, Lamour. Hydrodictyon, Roth. 
Spongodium, Lamr. Hydrodictyonella, 
Desmia, Lyngb. 
Dichloria, Grev. 
Trinitaria, Bory. 
Sporochnus, Ag. 
Arthrocladia, Dub. 
§ 5. Chordariea;, 
Grev. 
Chordaria, Lk. 
Nemalion, Dub. 
Laurencia, Lamour. 
Agardhia, Cabr. 
Lamarckia, Oliv. 
Chondria, (ex parte) Bryopsis, Lamour. 
Ag. [Merizomyria, Poll.] 
Chylocladia, Grev. Vaucheria, DC. 
Chondria, (ex parte) Vaucheriella, Gaill. 
Ag. 
Corallopsis, Grev, 
Acanthophora, Lam. 
Chondrus, Stackh. 
Gaill. 
Mougeotia, Ag. 
Mougeotella, Gaill. 
Tyndaridea, Bory. 
Zygnema, Ag. 
Salmacisella, Gaill. 
Salniacis, Bory. 
Conjugata, Vauch. 
§ 6. DiCTYOTEiE, La- Phyllophora, Grev. 
mour. 
Chorda, Stackh. 
Scytosiphon, Ag. 
Asperococcus, La- 
mour. 
Encoebium, Ag. 
Stilophora, Ag. 
Sphaerococcus, Ag. 
Ectosperma, Vauch 
Botrydium, Wallr. 
Hydrogastrum,'Des\. Nodularia, Mert. 
Rhizococcum , Desm. Sphaeroplea, Ag. 
Desmazierella, Gaill. Cadmus, Bory. 
§ 15. Lemanie-e, Ag. Tiresias, Bory 
Coronopifolia, Stack. Lemania, Bory. 
Calocladia, Grev. 
Bowiesia, Grev. 
Gelidium, Lamour. 
Gigartina, Lamour. 
Gracilaria, Grev. 
Hydroclathrus, Bory? Grateloupia, Ag. 
Hypnea, Lamour. 
Chaetospora, Ag. 
Ptilota, Ag. 
Champia, Lamour. 
Mertensia, Roth. 
Digenia, Ag. 
Punctaria, Grev. 
Striaria, Grev. 
Carmichelia, Grev. 
Dictyosiphon, Grev. 
Dictyota, Lamour. 
Zonaria, (ex parte) 
Ag. 
Cutleria, Grev. 
Padina, Adans. 
Zonaria, (ex parte) Thaumasia, Ag. 
Ag. (Zooph?) 
Haliseris, Tozz. Ag. 
Dictyopteris, Lamr. 
Lemanella, Gaill. 
Nodularia, Lyngb. 
Chantransia, (ex 
parte) DC. 
Polysperma, (ex 
parte) Vauch. 
Saprolegnia, Nees? 
§ 19. OSCILI.ATORIE-E, 
Har\'. 
Stigonema, Ag. 
Scytonema, Ag. 
Calothrix, Ag. 
Desmarestella, Bory. 
§ 16. EcTOCARPEE,Ag. Dillwynella , Bory. 
Cladostephus, Ag. 
Dasytrichia, Lamr. 
Dasycladus, Ag. 
Sphacellaria, Lyngb. 
Delisella, Bory. 
Liagora, Lam. (Zooph?) Elachistea, Dub 
§ 10. Thaumasie^, Ectocarpus, Lyngb. 
Grev. Lyngbya, Gaill. 
Carpsicarpella, Bory. 
Audouinella, Bor\\ 
Botrytella, Bory. 
Pylayelln, Bory. 
Lyngbya, Ag. 
Rosaria, Carm. 
Oscillatoria, Vauch. 
Oscillator iella, Gaill. 
Anabainella, Gaill. 
Anabaina, Bory. 
Microcoleus, Desm." 
Vaginaria, Bory. 
Oscillaria, Bose. 
Petalonema, Berk el. 
Belonia, Carm. 
