Cerammn. ' UKR.VMiE.t;. 133 



miiialibus forcipatis iiicurvis, arliculis iiiferioribus diainotio 

 3 — 4pIo longioribus, interstiliis pellucidis niulis, geniculis spi- 

 nula singula articulata colorata exteriore latere munitis, sphtc- 

 rosporis simplici sorie circa genicula verticillatis, favellis in 

 segmento lateralibus subaggregalis, singulis ramello suffultis. 



Ceram. acanthonotum Carm. inscr. J. Ag. Adoers. p. 26. Harv. Pht/col. 

 Bril. tab. UO! Aresch. Scand. p. 101. 



Ceram. ciliatum /?. acanthonotum Harv. in Hook. Brit. Fl. II. p. 336. 

 Man. p. 100. 



Acanthoceras Shuttleworthianum Ktllz. Phyc. gen. tab. 4G: IV! Sp. 

 Alg. p. 684! 



Hab. in oceano atlantico ad iittora Britanniae (Dillwyn! D:na 

 Griffitbs!} Gallia» (Crouan!) et Foeroearum (Lyngbye!) 



Frondes e.ximie caespitosge demumque pannosae, tenues, circiter capil- 

 lares, a basi ad apicem vix attenuatse, dichotomae et fastigiatae, apicibus 

 eximie incurvis forcipatis; demum proliferae, proliticationibus conformi- 

 bus. Axillae patentes. Articuli diametro inferne usque 4plo longiores, 

 superiores sensim breviores, interstitiis nudis hyaHnis, geniculis coriicatis 

 et externo furcarum latere spinula singula obsitis; spinula vaHda, 3 — 4 

 articuJis constante, delteo-conica, endochromate colorato. Sphaerosporae 

 singula serie circa genicuia verticillatae, erumpentes perisporio pellucido. 

 Favellae, in segmentis penultirais laterales, infra axillam rami majoris saepe 

 aggregatae, singulae ramello incurvo suffullae, involucro aggregatione fa- 

 vellarum saepe poiyphyllo. Color intensius coccineo-purpureus. 



19. Cer. ciLiATUM CEllis Phil. Tr. 57 p. 425) froiule subsotacea 

 regulariter dicbotomo-decomposita fastigiata, segmentis paten- 

 tibus, terminalibus forcipatis incurvis, articulis infeiioribus 

 diamelro 2 — 4plo longioiibus, interstitiis pellucidis nudis, ge- 

 niciiiorum spinulis vf>rticillatis articulatis byalinis, spba?rosporis 

 simplici serie circa geniciila verticillatis, favellis in segmen- 

 to latcralibus singiilis, ramellis involucrantibus 3 — 4 cinctis. 



Conf. ciliata Ellis l. c. tab. 18 fig. h. //. Ditlw. Conf. tab. 53. Engl. 

 Bot. tab. -2428. 



Ceramium ciliatum Ducl. Ess. p. 64! Lyngb. Ifydr. Dan. p. 121 lab. 

 37! Ag. Sp. II p. 153 (parlim)! J. Ag. Advers. p. 26. Ilarv. Phyc. Brit. 

 lab. 139! Mont. Ft. Alg. p. 146! 



Conferva pilosa Roth. Cat. Bot. II. tab. '6 fig. 21 



Echinoceras sp. (omnes?) liiitz. Sp. Alg. p. 680! 



Hab. in Oceano atlantico a littore Foeroearura iiscjue adGades! 

 et Brasiliara (Martius); in mari raediterraneo! adriatico! ef nigro!; 

 in Ocoano pacifico (sec. Harvey). 



