12 Mjrxophyceae, Ohroococcaceoe, Chroococcus. 



Linnoea VII, p. 953, Hcematococcus binalis Hass. Freshw. Alg. 

 p. 331, t. LXXXII, f. 2, Chroococcus chalybwus Rab. Alg. n. 1144! 

 — Cellulis sphgericis ohlongo-ellipsoideis vel e mutua pressione 

 plus minusve angulosis, singulis vel hinis, ternis vel quaternis 

 (rarius octonis) in familias consociatis, 13-25 \x. crassis, raro usque 

 ad 40 {/.. ; tegumento crasso, plerumque evidenter lamelloso, hyalino, 

 membrana tenui; plasmate Isete ?eruginoso viridi et homogeneo, 

 demum fuscescente et granulato. 



Hab. in saxis humidis et passim in paludibus etiam salsis 

 per totum orbem ex gr. in Italia (De Toxi, Forti, Kirchner, Del 

 ToRRE, Garbini, Martel, Mach); in mari Adriatico ad Tergeste 

 (F. Hauck); in foveis aqua marina repletis maris Ligustici (Straf- 

 FORELLo); ad Genuam (Ardissone), in Sicilia (BoRzi, Spinelli), 

 Sardinia (Cavara), Grsecia ad promontorium Sunium (Forti), in 

 Gallia (Lamy de la Chapelle, Bornet, Thuret, Flahault, Mou- 

 GEOT, Belloc), Belgio (De Wildeman), Anglia (Bennett, Cooke, 

 RoY, West), Hibernia, Scotia, Dania (West), insulis Faeroensibus 

 (WiLLE, Borgesen), Norvegia in aqujTeducto Christiani^e (Wille), 

 Lapponia (Bohlin), Helvetia (Naegeli, Amberg, Lozeron), Bavaria 

 in lacu Schloss (Istvanffi) et prope Erlangen (Glueck), Austria 

 (Loitlesberger), Tyrolia (Schroeder), Salisburgia (Beck), Bosnia 

 (GuTWiNSKi, Protic), Dalmatia in hicu Bocagnazzo (Hansg.), Lap- 

 ponia (Lagerheim), Suecia in Nive (Wittr. et Nordst.), Borussia 

 (Schmidle), Silesia (Lemmermann), Fennia (Levander), in ditione 

 « Moscovia » et « Poltawa » RossicB (Iwanow et Alexenko) Her- 

 cegovina (Gutwinski), Galicia (Gutwinski), Rumania (Istvanffi), 

 Dalmatia (Schmidle), Germania (Rabenhorst, Wartmann, Kolenati, 

 Hieronymus, Nave, Lemmermann, Klebah.v, Schmidle, Kirchner) 

 et in lacubus Germanicis (Klebahn, Lemmermann, Kirchner), 

 Carinthia (Schmidle), Hungaria (Wittrock, Istvanffi), Batavia 

 (Suringar), Islandia (Hariot), Groenlandia (Borgesen), Alaska 

 (Saunders), America foederata (Farloav, Collins, West, Wolle, 

 Setchell, Martindale), India (Hansgirg), Jj^quatoria (Sodiro, 

 Lagerheim, Istvanffi), Brasilia (Moebius), Algeria (Sauvageau), 

 insulis Azoricis (Bohlin), Africa centrali et meridionali (Gregory, 

 Reinsch, Schmidle, West), insulis Sandwicensibus (Nordstedt, 

 Schauinsland), S. Vincent. (West), Jamaica (Collins, D.''*' Pease 

 et Butler) et Ceylona (West). — Var. violaceus W. West in J. 

 R. M. S. 1892, pag. 741: protoplasmate constanter olivaceo; 

 cellula s. teg. 14-18, c. teg. 18-22 (j.. diam. Soclis Aphanothcce 



