216 



ED. BORIVKT ET €H. FLAHACLT. 



Algce aquatiae, Dec. X, n" 8!; — Sprengel, Systema vegetabilium, IV, pars I, 

 p. 372; — Wallroth, Flora cryptogam. Genrianiœ, \). 31; — Haivey in Hooker's 

 British Flora, II, pars I, p. 399 ; Manual oflirilisii AUjœ, p. ISA (synon. dubiuin) ; — 

 Berkeley, Gleanings of hritish Algœ, p. 48, tab. 19, lig. 2 (synon. diib.); — Schwabe, 

 Flora Anhaltiana, II, p. 133; — Kiitzing, Phycolog. gênerai., p. 205; Phijcolog. 

 german., p. 169; Tab. phycolog., II, p. 2, tab. 4, lig. IV; — Mcneghini, Monogra- 

 phia Nostochiiiearum ital., p. 114 (synon. dubium) ; — Hassall, Dritish fresk-ivater 

 Algœ, p. 291, tab. 76, fig. 3-4 (syn. dub.) ; — Rœmer, Die Algen Deutschlands, 

 p. 46, fig. 182; — Rabenhorst, Deutschlands Kryptogamenflora, p. 64; Algen, 

 n" 309!, 2530!; (non ii" 1148); — Aresclioug, Algœ scandin. exsicc, fasc. IX, 

 n" 281 !, et fasc. XI, n° 385!; — Wood, Contribution ta the History of ihe freshwater 

 Algie of North-Anierica, in Smiihsonian Conlrihulions to Knowledge, 1872, p. 28; 

 — Wittrock et Nordstedc, Algœ aq. dulc. exsiccat., fasc. Il, n° 97!, et fasc. VI, 

 n" 276!; — Borrict et Thuret, Notes algologiques, II, p. 116; — Cooke, British 

 fresh-iuater Algœ, p. 233, tab. 92, fig. 7-9. 



Ulva PRUNiFORMis Linné, Flora Suecica, p. 433, 1745. 



LiNCKiA. PRUNIFORMIS Rotli, Catalecla bolanica, III, p. 343, 1806. 



NosTOC coccYMELON Kijtzing, Tabulœ phycolog., II, p. 2, tab. 4, fig. III, 1850; — 

 Rabenborst, Algen, n" 744! 



NosTOC PRUNiFOBMK fornia b. maxima Rabenhorst, Flora europ. Algar., II, p. 168, 

 1865. 



NosTOC PRUNiFORME forma c. OLivACEA Rabenhorst, Flora europ. Algar., II, p. 168, 

 1865. 



Thallo globoso magnitudinem ovi gallinacei attingente, 

 olivaceo vel salurate œrugineo, ^emum fusco-nigrescente, 

 intus moUiusculo aqiioso, interdum cavo, peridermide coria- 

 ceo; filis laxe implicatis, a centro radiaiitibus; vaginis ssepius 

 distinctis hyalinis, rarius lutesceiilibus, a superficie visis 

 areolas magnitudinis et formœ varite formantibus; trichoina- 

 tibus 4-6 [/. crassis, articulis globoso-compressis vel diametro 

 paulo longioribus; heterocystis 6-7 [jl crassis, subglobosis; 

 sporis... (v. s.). 



Hab. libère natans in slagnis et lacubus SuecitB (Agardh!), 

 RossiaB (Herb. Lenormand!), Germaniœ (A. Braiin !), Americœ 

 borealis (Wolle!) et meridionalis (Arechavaleta!), 



Sectio VIII. — Verrucosa. 



27. vci'rncosum Vaucher 



Histoire des Conferves d'eau douce, p. 225, tab. XVI, fig. 3, 1803; — Lamarck et de 

 Caïulolle, Flore française. II, p. 4; — Agardh, Synopsis Algar. Scandinaviœ, p. 132; 

 Systema Algar., p. 21 ; Aufidlilungeiniger in den ôsterreich. Ldiulern neuen Algen, in 

 Flora, 1827, II, p. 629;— Lyngbyc, Ilydrophytologia danica, p. 199; — W.-J. Hooker, 



, Flora Scotica, II, p. 74; — IVloufeot et Nesller, Stirpes VogejiQ-rhe7ianœ, fasc, Vlll, 



