234 



E». BORIVFiT ET CH. ELAHAULT. 



fig. 170; — Rabcnliorst, Deulfichiands Knjptogainenflora, p. 66; — Giorgino et Kamp- 



mann, Matériaux pour une flore cnjptogainique de l'Alsace, p. 127. 

 Sph/Erozyga tenax, Hooker et Harvey, in London Journal of Botany, p. 297, 1845; 



e specim. aiilli. in herb. Mus. Par.!; — Kiitzing, Species Agar., p. 291; — 



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

 Cylindrospermum IUi-fsii Kiitzing, Diagnosen und Beinerkungen, etc., in Botanische 



Zeitung, 1847, V, p. 197; Species Algar., p. 293; Tabula phijcolog., I, p. 53; 



tab. 98, fig. VII, teste Ralfs. 

 Cylindrospermum Ralfsii Rabenhorst, Ahjen, n° 1832! 



Sph/erozyga oscili.arioides Kiitzing, Diagnosen und Bemerhungen, etc., in Bota- 

 nische Zeitung, V, p. 198, 1847; Species Algar., p. 291; Tabulœ phijcolog., I, p. 52, 



■ tab. 96, fig. VI; e specim. aiith. in lierb. Lenormand! (junior); — Rabenhorst, 

 Knjptogamenflora von Sachsen, p. 100; Flora europ. Algar., II, p. 194.; — Heufler, 

 Enumeratio cryptogamar. Italiœ Venelœ, p. 88; — Dickie, Notes on Algœ from the 

 Amazon, p. 6, in Journal of the Linnean Society, 1880, XVIII, p. 126. 



Sph.€rozyga Ralfsii Thwaites in Harvey, Manual of british marine Algœ, p. 233, 

 1849; — Rabenhorst, Flora europ. Algar., II, p. 193; — Kirchner, Kryptogamen- 

 flora von Schlesien, Algen, p. 237. 



Sph/Erozvga velutina Brébisson in Kiitzing, Species Algar., p. 290, 1849; Tabulœ 

 phycolog., I, p. 51, tab. 95, fig. V; e specim. auth. in lierb. SIus. Par.! 



Sph/erozyga insignis Kiitzing, Species Algar., p. 291, 1849; Tabulœ phycolog., I, 

 p. 52, tab. 96, fig. V; e specim. auth. in herb. Mus. Par.!; — Rabenhorst, Algen, 

 n°314!; Kn/ptogamenflora von Sachsen, p. 100. 



DoLiCHOSPERMUM Thwaitesii Ralfs, On the Nostochineœ, p. 17, tab. II, fig. 5, 1850, in 

 ^Ann. and Mug. of nat. Hist., ser. 2, V, p. 337, tab. IX, fig. 5. 



Cylindrospermum Demangeonii Mougeot et Nestler, Stirpes crypt. Vogeso-rhenanœ, 

 fasc. XIll, n" 1286 (pro parte), 1850. 



Sph.€ROzyga Caumiciiaeli Rabenliorst, Algen, n" 130!, 1851; Kryplogamenflora von 

 Sachsen, p. 99; Flora europ. Algar., II, p. 191 ; — (non Harvey, nec aliorum). 



Cylindrospermum polyspermum Rabenhorst, Algen, n" 531 !, 1856. 



Cylindrospermum flexuosum Rabenhorst, Algen, n°1254!, iSQ2; Flora europ. Algar., 

 II, p. 188. 



Sphterozyga GELATiNOSA Reinsch in Rabenhorst, Algen, n°1913! (1867), et 2156! 

 Anab/ENA Ralfsii Cooke, British fresh-water Algœ, p. 237, tab. 94, fig. 1, 1884. 



Strato gelatinoso atro-viridi, trichomatibus 4,2-6 [x, sœpius 

 5-6 [Jt crassis, cellula ultima rolundata; articulis doliiformi- 

 bus, diametro œquilongis, paulo brevioribiis vel longioribus; 

 heterocystis sphiEricis 6-8 crassis, vel ovoideis 6 [x crassis, 

 in proximitate sporarum usque ad 10 [x longis; sporis junio- 

 ribus ovoideis, demum eximie cylindraceis, solitariis vel bi-tri- 

 serialis apicibus rotundatis, heterocystse contiguis, évolutions 

 centripeta, 8-10 [x, sîBpiiis 10 [x crassis, 20-40 [x longis, epi- 

 sporio la3vi, in sporis maturis pallidissime fiiligineo (v. v.). 



Hab. in stagnis, paludibus et fossis Neeiiandise (van den 

 Bosch in herb. Lenormand!), Galliœ!, Belgiaî (Bory in herb. !), 

 Helvetiœ XR<^benhorst's Algen!), Germanice (Kiitzing et Al. 

 Braun in herb. Lenormand!), insularum Falkland (J. D. Hoo- 

 ker in herb. Mus. Par. !), necnon ad thermas Germanise 



