Protococcoideoe, Volvocaceac, Pandorina 539 



pulatione. Zoogonidia e cellulis omnibus singul^e colonico in 2-8 

 cellulas filiales divisis orta, dein liberata, globosa, virida, apice hya- 

 lina, macula pigmentali notata, biciliata, post pausam binatim in- 

 ter se polo hyalino copulantia et tunc zjgotum majusculura, con- 

 tentu rufescente praDditum generantia. Zygota post quietis perio- 

 dum 1-3 macrozoogonidia biciliata (post pausam vegetativa divi- 

 sione novas cok)nias efficientia) generantia. 



1. Pandorina Morum (Muell.?) Bory Encycl. moth., Ehrenb. Inf. p. 53, 1297 

 n. 70, t. II, f. XXXIII, Dujard. Zoophyt. p. 317, n. 1, Focke Phys. 

 Studien p. 30, t. IV, f. 3-6? (cell. ciliis binis!), Pringsh. Paar. 



der Zoosp. f. 1-7, Stein Infus. III, t. 16 et 17, Rabenh. Fl. Eur. 

 Algar. III, p. 99, Kirchn. Alg. Schles. p. 89, Hansg. Prodr. p. 103, 

 n. 139, f. 49, Wolle Freshw. Alg. U. S. p. 161, t. 153, f. 1-10, 

 De-Toni et Levi Fl. Alg. Ven. III, p. 63, Rabenh. Alg. n. 1411, 

 Henfrey in Transact. Micr. Journ. 1856, p. 49, tab. 4, West. n. 788 

 (sub Boiryocyfiiide), Boiryocysiis Morum Kuetz. Phyc. gener. p. 170, 

 t. 3, f. 9, Species Algarum p. 208, Tab. Phyc. 1, t. 19, f. 65, Bo 

 iryocy^tis Volvox Kuetz. Tab. Phyc, I, t. 9, f. 64, Spocies Al- 

 garum p. 208 (ciliis non delineatis). — Cffinobiis globosis vel ob- 

 longo-ellipticis, ad 220 a. latis, plerumque e 16 rarius 32 vel ultra 

 cellulis constitutis; cellulis 9,5-15 <^.. latis; zygotis episporio levi 

 instructis. 



Hah. m stagnis, fossis etc. per totam Europam imprimis in 

 Italia (De-Toni, Levi, Lorzi), Germania (Kirchner, Rabenhorst), 

 Britannia (Cooke), Hungaria (Istvanffi), Belgio (De-Wildeman), 

 Neerlandia (D.°^^ Weber van Bosse), Rossia (Artari), Scandina- 

 via (NoRDSTEDT, WiTTROCK, Wille) ; in America boreali passim 

 (F. Wolle); in Republica Argentina America» australis (Wille), 

 in Afghanistan Asias (Istvanffi), ad aTeremakau, Arahura, Du- 

 nedin, Wellington)) Nov?e Zelandiae (S. Berggren sec. Nordstedt); 

 in raontibus Uraliensibus (Ehrenberg); ad «Gransmarket, Asi- 

 nova, Dudinskoje» Sibirise (Boldt). 



2. Pandorina? pentagonalis Reinsch Algenfl. von Franken p. 100, i298 

 t. 7, f. 7 (sub Boiryocysiide). — Collulis nrismaticis 8-11:; 6-8, 

 planitiebus iateralibus quinternis, planitie laterali subconvexa aut 

 subplana, e planitie terminali visis pentagoniis, angulis paulo pro- 

 ductis; cellulis quaternis in infima j^arte octaodrice in familiam 

 (coloniam) minorem, 15-19 u.. diam. conjunctis aut cellulis octonis 

 sphfierice in familiara majorem 23-27 ;j.. diam. conjunctis. 



