Myxophycese, ChroococcaoeeB, Microcystls. 91 



minusve soluto circumvelatis; cellulis subglobosis vel ellipsoideis; 

 coiitentu cieruleo-viridi, sicco interdum lutescente, bouiogeneo. 



Hah. in lacu « Laxer-See » dicto Ilelvetiic (Brugger), et in 

 Amer. bor. (Wolle). 



17. Microcystis marginata Kuetz. Tab. Phyc. I, t. 8, Kirch. Alg. 235 

 Schles. p. 255, Cooke Brit. Fresh. alg. p. 212, t. LXXXVI, f. 5, 

 Polycystis marginata (Menegh.) Richt in Hedw. 1885, p. 20, 

 Hansg. Prodr. II, p. 145, Anacystis marginata Menegh. Consp. 



Fl. Eug. p. 6, Nostoch. p. 93, t. XIII, f. 1, Hilse in Rabenh. Alg. 

 exs. n. 1522! — Strato spha^rico-complanato vel globoso-lenticulari, 

 pluribus ScTpe confluentibus, pallide viridi, margine diaphano; cel- 

 lulis minutis 3-4 [x. crassis in familias 82,5-180 jj.. latas; contentu 

 serugineo-viridi demum granulato. 



Hab. in stagnis libere natans per totam Europam. In aqua 

 thermali (ad + 20° R.) Euganeorum inter Confervas et Lyngbyas 

 (Meneghini), et prope « Peschiera » in lacu Benaco (Garbini), ad 

 « Villefranche » Liguriae (Straf.forello), Bosniie (Protic), HeIveti;T[3 

 in Sihlthal (Duggeli!), Bohemia3, Austrife, Garinthiae, Carniolae 

 (Hansgirg), Hungariae (Istvanffi), Galicicie (Gutwinski), Poloniae 

 (Kozlowski, Raciborski), Lapponice Lulensis (Schmidle, Bohlin), 

 Anglia3, Hiberni» (Roy, West), Luneburg Borussiae (M. Schmidt), 

 in plancton fluvii Albis Germanise (Schorler, Volk!) et Thamesis 

 (FritschI, Americ* bor. (Wolle, Setchell, Saunders) et in lacu 

 « Malomba » Africie tropicre (FIilleborn). — Var. minor Hansg. 

 Prodr. II, p. 145: familiis globosis vel ovalibus rarius irregulariter 

 lobatis 25-60 [x. diam.; cellulis circa 3 [u crassis; cetera ut in 

 typo. In Bohemia et Carinthia (Hansgirg) passim cum typo. 



18. Microcystis Reinboldii (Richt.) nob., Anacystis Reinboldii Richt. 236 

 in Reinb. Cyanoph. der Kieler Fohrde p. 180 et in H. et Richt. 

 Phyc. Univ. n. 447! — Strato microscopico maculseformi vel tu- 

 berculari, c^rugiueo, lapillis arenosis adhcT3rente; cellulis sphajricis 



vel angulosis, oblongis, 3-4 (x. crassis, dilute a^rugineis, in greges 

 late a^rugineos, setate provecta, olivaceo-Iutescentibus, tum in pla- 

 nitiem effusis, tum in tubercula consociatis; familiis circa 60 [x. 

 latis, subglobosis, vel irregulariter lobatis sa)pe confluentibus; con- 

 tentu homogeneo. 



Hab. in arena litoris septentrionalis Kielensis (Reinbold). 



19. Microcystis parasitica Kuetz. Phyc. germ. p. 170, Anacystis pa- 237 

 rasitica Kuetz. Tab. Phyc. I, 9, Sp. p. 209, Trevis. Alg. Coccot. 



p. 35, Rab. Fl. Eur. Alg. II, p. 52. — Strato plautis aquaticis 



