REVISION DES NOSTOCACÉES HÉTÉROCYSTÉES. 237 



s/o/ie, Vcnozia, 1839, p. 1051; e specim. auth. in iierb. Thuret!; — Ralfs, On the 

 Noslochineœ, in Aimais and Magaz.. of nat. Hist. ,ser. II, 1850, V, p. 331 ; — Kiitzing, 

 Species Algar., p. 287; Tabtilœ pliijcolog., I, p. 50, lab. 92, fig. III; — Rabenhorst, 

 Flora europ. Algar., II, p. 197. 



ScHizoNEM.i GELATiNOSUM Suhr, Beitrdge zur Algenkunde, in Flora, XXII, 1839, p. 75, 

 tab. IV, fig. 48; e specim. auth. in herb. Leiiormand! 



Sph.erozyga compacta Kiitzing, Phycologia gênerai., p. 211, 1843; Phijcologia 

 german., p. iTi; Species Algar., p. "iQO; Tabulœ phycolog., I, p. 52, tab. 95, fig. VII; 

 e specim. auth. in herb. Lenormand!; — Rœmer, Die Algen Deutschlands, p. 4-2, 

 fig. 166; — Rabenhorst, Deutschlands Kryptogamenflora, p. 67; Flora europ. 

 Algar., II, p. 197. 



Sph^erozyga sabulosa Kiitzing, Phycologia gênerai., p. 211, 1843; Phycologia 

 german., p. 172; Species Algar., p. 289; Tabulœ phycolog., I, p. 51, tab. 95, fig. II; 

 e specim. auth. in herb. Lenormand!; — Rœmer, Die Algen Deutschlands, p. 42; 



— Rabenhorst, Deutschlands Kryptogamenflora, p. 67 ; Flora europ. Algar., Il, p. 199. 

 Cylindrosperjium mesoleptum Kiitzing, Phycologia german., p. 174, 1845; Species 



Algar., p. 293; Tabulœ phycolog., I, p. 53, tab. 98, fig. V; e specim. auth. in herb. 

 Lenormand!; — Giorgino et Kampmann, Matériaux pour une flore cryptog. de 

 l'Alsace, p. i27 (syn. valde dubium). 

 Cylindrospermum gelatinosum Rabenliorst, Deutschlands Kryptogamenflora, p. 68, 

 1847. 



Sph.'EROZyga Carmichaeli Harvey, Phycologia britannica, tab. 113, A, ISiS; Manual of 

 the british marine Algœ, p. 232; — Ralfs, On the Nostochineœ., in Annals and Mag. 

 of nat. Hist., 1850, V, p. 331, tab. VIII, fig. l,ab; e specim. auth. in herb. Lenor- 

 mand! ; — Areschoug, Algœ Scandinavicœ exsiccatœ, n° 193!; — Le Jolis, Liste des 

 Algues marines de Cherbourg, p. 29; — Crouan, Algues marines du Finistère, 

 n° 331 ! ; Florule du Finistère, p. 11 1 ; — Reinsch, Algenflora des mittleren Theiles 

 von Franken, p. 47; — Farlow, List of the marine Algœ of the United-States (Pro- 

 ceedings of the American Academy of Arts and Science, X, p. 380); Marine Algœ 

 of New-England, p. 30; — Cooke, Dritish fresh-water Algœ, p. 240, tab. 94, fig. 3; 



— (non Rabenhorst, nec Areschoug). 



Cylindrospermum Carmichaeui Kiitzing, Species Algar., p. 294, 1849; Tabulœ phy- 

 colog., I, p. 53, tab. 99, fig. IV; — Dosmazières, Plantes cryptog. de France, sér. I, 

 n" 1978!. 



Spii.î:rozyga Carmichaeui b. mesolepta Rabenhorst, Flora europ. Algar., II, p. 192, 

 1865. 



Sph.ïrozyga polysperma Rabenhorst, Flora europ. Algar., II, p. 192, 1865, ex parte, 



sec. specim. a Molir lectum! ; (non Algen, n^SOi). 

 NosTOC CYLiNDRicUM Lyngbye, e specim. auth. in herb. Bory! 



Strato mucoso, tenui, œrugineo; trichomatibus 4,2-5 (x 

 crassis, cellula iiltima acnte conica ; articulis doliiformibiis 

 diametro aequicrassis vel paulo brevioribus; heterocystis sub- 

 sphœricis vel ovoideis, 6 \x crassis, 6-10 [x longis; sporis bre- 

 vibus, subcylindraceis, 7-12 [x crassis, diametro sa3piiis duplo 

 longioribiis, apicibus depressis, in média parte sœpius leviter 

 constrictis, heterocysta proximis, evolutione centripeta, epi- 

 sporio Isevi, in sporis maturis pallide fuligineo (v, v.). 



Hab. in paludibus submarinis et ad littora limosa Sueciae 

 (Areschoug, Algee Scandin. exsiccat. !), Germanise occidentalis 

 (Kiitzing in herb. Lenormand!), Neerlandiœ (van den Bosch in 



