Myxophycese, Heterocystideae, Anabseua. 463 



Tal). XCIV, fig. G. — Trichomatibus sparsis; articulis minutis, 

 fere orbicularibus, 3,5-4 (i. diam.; heterocystis minutis, doliifor- 

 mibus, brevioribus quam sporis ; sporis turgidis, plerumque sub- 

 sphLericis vel breviter ellipticis; heterocystis et articulis crassio- 

 ribus, 8 {j.. diam., 12-15 [j.. longis. 



Hah. in pnludibus Anglice (Ralfs) et Hispanice (.Ma. Lewin). 



65. Anabaena Nordstedtii Turner Algae of India pag. 13, Tab. XX, 1077 

 f. 19 (sub Sphceroztjga). — Articulis clepsydriformibus, medio ro- 

 tundate incavatis; heterocystis ovalibus; sporis nondum observatis. 



Hah. in India orientali (Wallich, Turner). 



66. Spliaerozyga Massalongi Fior.-Mazz. Microf. Terracina IF, p. 1, f. 4. 1078 

 — Strato pulclire smaragdino; trichomatibus longe flexuosis, im- 

 plicatis; articulis sphaericis, cylindricis, 4 jj.. latis; sporis (?) gra- 

 nulosis, sph;Bricis vel ellipsoideis, 12-20 \x. longis, quandoque in 

 seriem continuam dispositis. 



Hab. in aquis sulphureis Terracinoe (Fiorini-Mazzanti). 



67. Spliaerozyga fallax Ripart Notices sur quelques esp. rares ou 1079 

 nouv. de la flor. crypt. de France in Bull. Soc. Bot. Fr. 1876, 



p. 158. — Trichomatibus permultis in fasciculos complanatos semel 

 bis vel ter ramosos coalitis; in fornice ramorum thalli s;epe tri- 

 chomata sistunt spiraliter convoluta, discum complanatum fingen- 

 tia; trichomatibus, vagina inclusa, 12 jj.. diam, ; articulis sphsericis 

 contentu homogeneo, cupro-viridi ; heterocystis sphaericis, paulo 

 majoribus et pallidioribus ; sporis cylindricis, obscure-viridibus, con- 

 tentu granuloso, heterocystis utrinque contiguis, 16-36 [j.. longis, 

 trichomati diam. sequalibus. 



Hah. in aqua stagnanti super folia putrida Gallise medire (Ri- 

 part). 



68. Sphaerozyga anisococca (Kuetz.i Rab. FI. Eur. Alg. II, pag. 19, 1080 

 Anahama anisococca Borzi Morf. e Biol. ficocrom. I, pag. 285, 

 Cylmdrospermum [Dolichospermum.] anisococcum Ktz. Tabul. I, 



p. 53, t. 99, f. VII. — Strato mucoso-membranaceo, saturate ;erugi- 

 neo, lubrico; trichoraatibus oequalibus, leviter flexuoso-curvatis, 

 subparallelis ; articulis globosis oblongisve, subtiliter granulatis, 3,7- 

 5 {1. crassis; heterocystis articulorum diametro paulo vel duplo 

 majoribus; sporis ellipticis vel elongato-subcylindraceis, diametro 

 l-^Yj-plo longioribus, plerumque seriatis, maturis flavo-fuscescen- 

 tibus, membrana sat crassa. 



Hah. per stagna Europ?e centralis et meridionalis, passim(KuE- 

 TziNG, Rabenhorst, BoRzi). 



