286 Myxophyceae, Lyngbyese, Lyngbya. 



Filamentis solitariis et sparsis; trichomatibus subflexuosis, libere 

 iiatantibus, evidenter articulatis, 1,6-1,8 \i. diam. ; vaginis arctis, 

 achrois, articulis diam. ad 2-plo longioribus; contentu pallide «ru- 

 gineo homogeneo. 



Hab. in lacubus Anglise et pnesertim in ditione « York » (W. 

 West), «Lough neagh» Hibernise (West), «Narke» Suecii^ et Ger- 

 maniae in prov. Brandenburgensi (Lemmermann) ; in Lapponia Lu- 

 lensi (Bohlin), ins. Dominica (West) et ins. Sandwicensibus 



(VOLZ). 



50. Lyngbya Loriae nob., Lyngbya hyalina Bzi. Alghe Papuas. p. 40 692 

 nec Harv. — Strato late expanso, sordide olivaceo-viridi, e filis 

 dense tortuoso-intricatis subcontinuis constituto ; vaginis arctis, 

 achrois; articulis diam. longioribus 2,5-2,7 jj.. latis, contentu palli- 

 dissime cseruleo. 



Hah. in craniis vetustis Papuasorum (Loria). 



Subgen. III. Limnetic^ Nob. — Filamenta singula, libere natantia, recta. 



51. Lyngbya limnetica Lemmerm. Beitr. z. Kenntn. d. Plankt. Alg. H,- 693 

 in Bot. Centralbl. 1898, n. 44-45, p. 6, Plon. Forsch. (1903), p. 151, 

 .lohs. Schmidt Cyan. Dan. p. 62. — Filis rectis, solitariis, libere 

 natantibus; vaginis arctissimis, tenuibus, ad 1 [jl. latis, hyalinis, 

 chlorozincico jodurato non c?erulescentibus; cellulis 1,5 [x. diam., 

 subquadratis vel diam. usque 2-plo longioribus, contentu pallide 

 viridi-serugineo farctis. 



Hab. « Stocksee, Holsatiae» et passim limnetica in lacubus Ger- 

 manise (Lemmermann), Scotiae (West), Daniae (Ostenfeld, J. Schmidt, 

 Wesenberg-Lund), « Scutari » Albanite (Forti); in lacu Vetter 

 (Forti, De ToNij, necnon in lacu Valloxen (Borge) et passim in 

 Suecia (Nordstedt, Lemmermann), in lacubus Jav* (Volz), Novae 

 Zelandice et in lacuna insuhie Chatham (Schauinsland). 



52. Lyngbya iacustris Lemmerm. Beitr. z. Kenntn. d. Plankton Alg. H, 6 

 in Bot. Centralbl. 1898, n. 44-45, p. 6, Ploner Forschungsber. (1903), 

 p. 151, Johs. Schm. Cyan. Dan. p. 63. — Filis rectis vel parce 

 curvatis, solitariis, libere natantibus, vaginis 4-5 (x. amplis, hyalinis, 

 chlorozincico jodurato non caerulescentibus circumfusis; cellulis 

 1,5 [1. diam., 1,5-5 [x. longis, contentu pallide ierugineo-viridi farctis. 



Hab. in «Steinlmder Meer» Holsatia^ limnetica (Lemmermann), 

 in lacu «Maribo» Daniye (Ostenfeld). 



53. Lyngbya Nyassae Schmidle in Engl. Bot. Jahrb. 32, Bd. (1902), ^ 



