6 Cyclosporinae, Sargassacese, Sargassum. 



§ Vesiciila' ut oi-gana pvopria discrete prsesentes. Folia in ramos liauJ 

 abeuntia. 

 Cystophora J. Ag. — Vesiculm liaud septatae, sphaerica? vel ellipsoideae. 

 Ealidrys Lyugb. — Vesiculae septat:ie, siliquaeformes. 



§§ Vesiculee ut organa proprialiaud discretie. Folia in ramos abeuntia. 



a. Corpus rhizomatiforme in fronde haud pra^sens. 

 CysiophyUum J. Ag. — Inflationcs vesiculieformes in ramulorura apice tan- 



tum sitae. 

 Cystoseira Ag. — Inflationes vesiculasformes liauil terminales. 



b. Corpns rhizomatiforme in fronde prassens. 

 Bifurcaria Stackli. — Frons hinc inde longe vesiculoso-inflata. 



B. Segmenta frondis peculiaria in receptacula transformata haud praescntia. 

 t Scaphidia in i-amis brevibus (in vesiculas hand l^ransformatis) evoluta. 

 * Rami breves (seu folia soaphidiifera) scutiformes breve pedicellati. 

 Scaheria Grev. — Folia scaphidiifera extus spinuloso-verrucosa, spiraliter di- 

 sposita; folia genuina flliformia, comosa. 



"* Rami breves formam deplanatam (foliaceam) sumentes. 

 Phyllospora Ag. — Vesicuhe praesentes (caulinre). Folia marginalia disticha. 

 Carpoglossum Kuetz. — Vesiculae genuiuffi nullae, rarius in pinnis subsingulre. 



tt Seaphidia ad vesicularum parietes evoluta. 

 Coecophora Grev. — Vesiculas in ramorum apice racemose congestte. 



SARGASSUM Ag. [1821] Sp. I p. 1, (Etym. Sargazo Hispauorum) Kuetz. 

 rhyc. gener. p. 3G0, Sp. p. 600, J. Ag, Sp. I, p. 2G8 et sea., Sp. 

 Sarg. Austral. (1889) [opus exiraium tabulis^iue numerosis prajdi- 

 tum], K.jellm. in Engl. & Prantl. Naturl. Pflanzenfam. 97, p. 287, 

 De Toni Syst. Uebers. Fucoid. 1891, p. 75, Halochloa Kuetz. [1843] 

 Phyc. gener. p. 366, Sp. (1849), p. 632, Pterocaulon Kuetz. [1843] 

 Phyc. gener. p. 360, Sp. (1849), p. 606, Carpacanthus Kuetz. 

 [1843] Pliyc. gener. p. 368, Sp. (1849), p. 621, Stichophora Kuetz. 

 [1843] Phyc. gener. p. 282, Sp. [1849], p. 627, Phyllotricha Aresch. 

 [185-5] Phyc. extraeurop. pag. 331 (3), Fuci, Cystoseira', Cysto- 

 pliora' sp. auct. — Frons, evolutione axillari, ramosa, caulem l)re- 

 vem. folia, vesiculas et receptacula ut organa discreta gerens. Folia 

 lamina liori/.ontali (rarissime verticali), sa^pius costata, plana aut 

 teretiuscula constantia. Vesiculje a folio transformato singulae ort*, 

 apice folii coronata- aut apiculatiB aut muticfe. Receptacula meta- 

 morphosi folii singuli aut rami foliigeri formata, organa in axilla 

 folii fulcrantis aut simplicia aut ramosa (ssepe denique terminalia) 

 constituentia. Scaphidia infra superficiem excavata, sphierica aut 

 siepius longitudinaliter extensa, cum ostiolo suporficiali, per cana- 

 lem communicantia, hermaphroditica aut rarius unisexualia. Oogo- 

 nia monospora. Antheridia rotundata racemosa. Parapliyses sim- 

 plices aut furcatie. oogonia stipantes, pauca'. 



