Myxophycese, Heterocystidese, Nostoc. 391 



vitreis iibi A.lgfe, e Gallia iiiedia (Sologne) provenientes, diu as- 

 servatte fuerunt (Cornu, Bornet et Flahault), in lacu Constan- 

 tia' (Kirchner), in stagtiis Bohemiio passini (Hansgirg), Austriai 

 (MoRL, Heufler, Hansgirg, Beck), in lacu Balaton et in montibus 

 Pieninen Hungari;B (Filarszky, Istvanfpi) ; ad Moscoviaui Rossia3 

 (Iwanoff); in ins. Faeroensibus (Wille) et Azoricis (Bohlin), iu 

 Papuasia (Loria), Java (Benecke) ; ad Oahu ins. Hawaii (Lemmer- 

 mann); ad « Burpengary » Australise (Moebius), 



7. Nostoc aureum Kuetz. Tab. Phyc. II, p. 1, t. I, f. IV, Suringar Obs. 946 

 phycol. p. 41, Rab. Fl. Eur. Alg. II, p. 165. — Thallo parvo, adh;i^- 

 renti, subgloboso, aureo-viridi, molli, paulum elastico, intus mu- 

 coso; trichomatibus brevissimis, valde curvatis et laxe intricatis, 

 interdum subrectis; articulis modo distantibus modo confertis et 

 saepius continuis, subglobosis vel oblongis, aerugineis, 2-2,5 jj,. 

 crassis; heterocystis sphaericis, singulis et sparsis vel seriatis, 3- 



4,5 [K crassis. 



Hab. in palis maritiniis prope «Lenimer» Hollandias et prope 

 «Norderney, Mahno » (Kuetzing, Suringar); in oceano Arctico 

 in glacie currentibus convecta (?j. 



Sectio IV. Intricata Born. et Flah. Rev. IV, p. 192. — Aquaticae, majores, ge- 

 latinosaB, iragiles, initio globosse, deinde laceratse et irregulariter expansae. 



8. Nostoo Linckia (Rothj Bornet in Bornet et Thuret Not. Alg. p. 8G, ^^'^ 

 t. XVIII, f. 1-12, Cooke Brit. Freshw. Alg. p. 227, t. 89, f. 1-11, 

 Born. et Fhih. Rev. IV, p. 192, Fhih. in W. et N. Alg. exs. n. 691! 

 Nordst. in W. N. et Lagerh. Alg. exs. n. 1331!, Hansg. Prodr, II, 



p. 58, .J. Schm. Cyan. Dan. p. 81 c. ic, Saund. in C. H. et Setch. 

 Phyc. bor. Amer. n. 507! Rimdaria TAiikia Roth Neue Beytr. zur 

 Bot. I, p. 265, Nostoc confusum Agardh Syst. pag. 22, Sprengel 

 Syst. vcg. IV, pars I, pag. 372, Wallr. FL crypt. Germ. p. 32, 

 Menegh. Monogr. Nostoch. p. 114, Rab. Kryptogamenfl. Deutsclil. 

 p. 64 (non Brebisson), Monormia intricata Berk. Gleanings of 

 Brit. Alg. pag. 46, t. 18, Harv. A Manual of the British Algse 

 tab. 185, Man. of the Brit. mar. Alg. pag. 231, tab. 27^, Phyc. 

 brit. t. 256, Hass. Brit. Freshw. Alg. pag. 286, tab. 75, fig. 11, 

 Ralfs On the Nostoch. in Ann. and Mag. of nat. Hist. ser. 2, 

 Y, pag. 6, Nostoc gymnosphcericum Kuetz. Phyc. pag. 205, Phyc. 

 germ. pag. 169, Sp. Alg. pag. 296, Tab. Phyc. II, p. 2, t. 3, 

 fig. III, Roem. Die Alg. Deutschl. pag. 46, Rab. Deutschl Krypt. 



