PLANCHE 269 



ALOE 



IX. Florideae Algues rouges; 



17. Ceramiaceae 



Genre ANTITHAIYINION Nageli (incl. Sporacanthus Kiitzing = Pterothamnion Nageli) 



I. Antithamnion Plumula (.Ellis) Thur. ( = : Conferva Plunmla Ellis = Conferva 

 Turneri Sm. = = Ceramium crispum Ducluz == Ceramium Plumula Ag. = Callithamnion 

 Plumula Lyngb. = Callithamnion Plumula horridulurn J. Ag. = Callithamnion rcfractum 

 Rtz. == Callithamnion polyacanthum Ktz. = = Callithamnion macropterum Menegh. = = Calli- 

 thamnion Bebbii Reinsch - - Callithamnion abielinurn Reinsch. = Pterothamnion Plumula 

 Nreg. = = Callithamnion semipennatum, plumosum, recurvatiim Schousb.). 2'-i, ranreau 

 avec tetrasporanges (un peu grossis). -- 25, schema du debut d'un cystocarpe (i). - - 26, 

 tetrasporanges (grossis) (a). - - Manche, Atlantique, Mediterranee, Adriatique, etc. 



II. Antithamnion cruciatum (Ag.) Nag. ( = = Callithamnion cruciatum Ag. : = Calli- 

 thamnion Jragilissimum. Schousb. = = Callithamnion imbricatam Schousb. Callithamnion 

 dubiiim Zanard. -= Callithamnion Naccarianam Rudolph. = Callithamnion pumilum Harv. 



= Callithamnion decipiens J. Kg. Antithamnion pu&illum (Rupr .)Rjellm.= Callithamnion 

 Ptuma Post, et Rupr. Fragment, gross! 60 fois (3). - -Atlantique, Mediterranee. 

 Adriatique. 



III. Antithamnion floccosum (Muell.) Rleen, ( = Conferva floccosa Muell. = = Calli- 

 thamnion Plumula Lyngb. = = Callithamnion Jloccosum J. Ag. = Callithamnion Pollexfeni 



= Pterothamnion (Haplocladium) Jloccosum Nag.). Rameau, grossi. -- Ocean Atlantique 

 boreal (Norvege, Feroe, Greenland, etc.). 



Genre CROUANIA J. Ag. 



IV. Crouania gracilis J. Ag. - - Fragment, gross! (3). - - Littoral de la Tasmanie. 



V. Grouania attenuate (Bonn.) J. Ag. ( = Mesogloia attenuata Ag. = Mesogloia? 

 moniliformis Griff. == Griffithsia nodulosa Ag. = Callithamnion nodulosum Ktz. = Calli- 

 thamnion tiatrachoi>permum Rtz. == Callithamnion condensatum Rtz. = Crouania Solierii 

 de Not. = = Crouania densa Reinsch. == Crouania bispora Crouan. = Crouania attenuata f. 

 bispora. - - Biosporium Crouanii Naeg. = = Ceramium hispidum Schousb. = Ceramium annu- 

 lalum Schousb.). - - 27, fragment, grossi 4o fois (3). -- 28, fragment, avec telrasporanges,' 

 grossi 100 fois (3). - - Atlantique, Mediterranee, Adriatique. - - 2 a 4 cm. de long. Teinte 

 pourpre. 



enre GATTYA Harvey 



VI. Gattya pinnella Harv. - - Fragment, en partie denude artificiellement a la .par tie 

 inferieure (100 : i) (3). Nouvelle-Hollande ; sur les Corallines et les autres Algues. 

 2 a 4 cm. Teinte brim rouge. 



1. PHILLIP*. 2. NAGELI. 3. Ki TZING. 4. AGAR.DH. 



