Mj^xophyceoe, Oscillatoi-iege, Oscillatoi-ia. 185 



pr. Vindobonaia (Diesinq) et Biidensibus HungaricO (Grunow). — 

 Fornia per strata conipacta, chalybeo-olivascens cum typ^» In 

 Gallia australi (Bottcher). 

 7:3. Oscillatoria Okeni (Ag.) Goniont Monogr. p. 232, t. VII, f. 18, 439 

 J)e Toni Fl. Alg. Ven. IV, p. GG3, J. Sclimidt Cyan. Dan. p. 75, 

 Oscillaria Okeni Ag. in Flora X, p. GG3, 1827, Goin. I]ss. in 

 Journ. de Bot. IV, p. 35G, Rab. Fl. Eur. Alg. IF, p. 99, non Kuetz., 

 Oscillaria cJialybea -( luticola. Meneghini in Kuetz. Sp. p. 245, 

 Lynghya Okeni Hansg. Prodr. Alg. v. Bohm. II, p. 110 excl. syn. 

 p. p. — Trichomatil)us in stratum atro-ae.ruginosum agglomeratis, 

 rectis, in siccitate fragilibus, ad genicula evidenter constrictis, 5,5- 

 9 |x. crassis, apicem versus longissime et sensim attenuatis, undu- 

 latis et ad extremum uncinato-arcuatis; articulis diametro 3-plo 

 brevioribus, 2,7-4,5 [a. longis (apicalibus subquadratis usque ad 

 8 [X. longis), contentu tenui-granulato farctis; cellula apicali obtusa 

 vel subacuta, haud capitata; calyptra nulla. 



Hah. thermas Belgii ad Liege (Bory), GalliaB borealis (Debray), 

 Dani« (J. Schmidt), Anglite (West), Bohemioe ad Karlsbad (Agardh, 

 ScHwABE, Martens, Gomont) et passim (Hansgirg), Italife ad Abano 

 (Meneghini, De Toni, Trevisan), Hungarise in thermis Budensibus 

 (voN Martens), AIgeri?e (Sauvageau), «Loanda» Afric^ tropicalis 

 (Welwitsch), ins. Whidbey prope Amer. bor. (Gardner). — Var. 

 gracilis Kuetz. in Mohl et Schlecht. Bot. Zeit. 1847, p. 221, Sp. 

 Alg. p. 240, Rab. Fl. Eur. Alg. II, p. 99: strato hete rerugineo; tri- 

 chomatibus laxe et leviter implicatis vel parallelis, 4-5 {x. crassis ; 

 arliculis diametro 2-3-plo brevioribus. In fossis Germaniae inter 

 Confervas et Diatomeas (Kuetzing). — Var. fallax Hansg. Prodr. Alg. 

 V. Bohm. II, p. 110, Lynghya fallax Hansg. in Sitzungsb. Konigl. Ak. 

 der Wiss. 1892, p. 348: strato nigro-brunneo vel nigro aerugineo 

 opace-lucenti; filamentis vaginis subtilissimis sajpe diffluentibus 

 proeditis; trichomatibus 4-4,5 jj.. crassis, rectis vel leviter arcuatis ; 

 cellulis apicalibus elongatis; contentu viridi-a^rugineo, rarius aeru- 

 gineo-nigrescenti. In Carinthia et Bohemia (Hansgirg). — Var. 

 phormidioides Hansg, 1. c: filamentis invaginatis in vaginis achrois 

 usque ad 5 [i. crassis. In Bohemia ad Pragam (Hansgirg). Huc ac- 

 cedit forsan, preeunte cl. Ardissone, Oscillatoria anthracina De 

 Not. Prosp. Fl. Lig. p. 74, Ard. et StralT. Enum. Alg. Lig. p. G5 : 

 filamentis circ. G,5 [i. diam. In portu Nicseaj in aqua marina cum 

 rivulo aqure dulcis permixta (De Notaris). 

 74. Oscillatoria chalybea (Mertens) Gom. Mon. p. 232, t. VII, f. 19, 440 



