— 255 — 



Mjriadenia, Cajpodesmia^ Phyllospora^ Hormophysa? Hor- 

 mosira^ Splachnidium^ Himanthalliay DwviUcea, Fucus (Xi'- 

 phopJwra^ Carpoglossum^ Pelvetia^ Cjmaduse^ OzothaUia), 



b. Cystos ir e ce: caulescentes; ramosae, aphyllae, v. foliis, 

 partim in ampullas et synangia efformandis: — Coccopho* 

 ray Halerica (et Treptacantha K z g.), Cjstosira ( PhyUacantha^ 

 Sirophjsalisjy HaUdrys. 



c. Sargassece: foliis perfectioribus, synangiis et am- 

 puUis distinctis, axillarib. v. terminalibus: — Turhinaria^ 

 Blosse^iUea, Sargassum (Halochloa, Myagropsis, Spongiocar- 

 pus, Carpncanthus, Baccalaria et Decursaria), ScytoLhaUia^ 

 Sirococcus (et Marginaria), CarpophyUum^ Phycobotrys. 



d. P oly pha ce ce: tliallus ramosus, filaris v- phyllo" 

 morphus, verrucis scabris stipitatis obsilus, in synangia ter- 

 minaHa v. lateralia, minuta, et ampullas sparsas efformandis: 

 — CastraUia (Scaheria), Polyphacum. 



O r do VI. F l o r i d a l e s. 



Algae marinae rubentes, raro virentes, siccalione -\ al- 



terabiles, grdciles v. majores, thalli forma et fabrica inlerna 

 summe variis, cellulis epilhallii v. endolhallii oomorphis qua- 

 si dioccae. Ovula rubra (endothallina) in cavernulis v. cistu- 

 lis passim placentiferis conferta aut favellae. Telroidia (epilhal- 

 liua) varia in epithallio, oocloniis v- nematheciis nidulantia. 



F A HJ . 20. C E R A M I I X -E. 



Algae marinae rubentes, heterogonio-dioecae. Thallus ra- 

 mosus monosiphonlus (confervinus) v. polysiphonius^ qui- 

 busdam compressus ct pinnalifidus v. helcrocladus, epilhal- 



lio interrupto v. continuo, -i crasso. Tetroidia gonoschi- 



za sparsa. FavellDe hyalinye, passini involucratse, ovulis con- 

 glomeratis (spermatoidia Wrangeliae): An Ordo proprius? 



a. Ceramiece: thallus confervinus, nudus v. epithallio 

 interrupto v. continuo h crasso veslitus; CaUUhamriiQny 



