— 15 — 



Callithamnion granulatum, Ducl. (Ceramium). — Cyclopen-Inseln 

 [Ard.]. — Ficarazzi, Palermo [Kn.]. — Arenella [Kn. und Lgb.]. 



Callithamnion versicolor, Draparn. (Conferva). — Arenella [Kn. und 

 Lgb.]. - 



Callithamnion refractum, Kg. (= Call. Plumula, Ellis (Conferva) 

 var crispum. — Palermo [Kn.]. — 



Callithamnion lanceolatum, Kg. (Phlebothamnion). — Acireale 

 [Ard.]. — Pantellaria [Lgb.]. — 



Griffithsia sphaerica, Schousb. (= Gr. setacea, Ellis (Conferva) var. 

 sphaerica). — Acireale [Ard.]. — Pantellaria [Lgb.]. 



Griffithsia opuntioides, J. Ag. (= Gr. neapolitana, Näg.). — Aci- 

 reale [Ard.]. — Palermo [Kn.]. — ' (cf. Zanardmi, Iconogr. vol. II. 

 pag. 97.) 



Griffithsia secuudiflora, J. Ag. — [Ard.]. Trapani und Pantellaria 

 [Lgb.] 



Griffithsia Schousboei, Mont. — Pantellaria [Lgb.]. 



Griffithsia tenuis, Ag. — Pantellaria [Lgb.]. — 



Griffithsia furcellata, J. Ag. — E sinn Pauormitano [Hb. Sprengel 

 Agardh, Sp. Gen. et Ord. Alg. IL 1. pag. 83.]. 



Crouania attenuata, Bonnern. (Batrachospermum). — Auf Posidonia, 

 Dictyota, Ulva. Palermo [Kn.]. — 



Ceramium diaphanum, Lightf. (Conferva.) — [Ard.]. — Palermo 

 [Kn.] — Ficarazzi [Lgb.]. — 



Ceramium purpureum , Ardissone (Hormoceras). — Catania, Mes- 

 sina [Ard.]. — 



Minutulum, flaccidum, violacespurpureum; articulis inferioribus dia- 

 metro 4 — 6 plo longioribus, superioribus subaequalibus; zonis inferio- 

 ribus distantibus, superioribus approximatis, omnibus diametro 

 brevioribus. 



Ceramium pulchellum, Kg. (Hormoceras). — Acireale [Ard.]. — 



Ceramium pellucidum, Kg. (Gongroceras). — [Ard.]. — 



Ceramium mediterraneum, Ardissone (Trichoceras). — Acireale 

 [Ard.]. — 



Obscure purpureum, pollicare, subsetaceum, irregulariter dicho- 

 tomum; articulis diumetro aequalibus; zonis ex geniculis piliferis, 

 pilis flaccidis hyalini«, praesertim in ramis evidentissimis. 



Ceramium ciliatum Au ct. (= Echinoceras ciliatum, Kg.). — [Ard. J 

 — Palermo [Kn.]. — Arenella [Kn. und Lgb.]. — Aspra, Porticello 

 am Faro, Pantellaria [Lgb.]. — 



Ceramium ramulosum, Kg. (Echinoceras). — Acireale [Ard.] 



Ceramium rubrum, Huds. (Conferva). — Palermo [C. Gramer 

 Pflanzeuphysiol. Untersuchungen, 4. Heft 1857. — [Kn.]. — [Ard.] 

 Arenella, Aspra, Porticello am Faro, Pantellaria [Lgb.]. — 



Ceramium rigidum, Ardissone. — Catania [Ard.]. — 



2 — 3 pollicare, setaceum, dichotomum, subcartilagineum, ramis setulis, 



