618 Myxophycese, Rivulariaceae, dalothrix. 



Suecia ad Holmiam (Nordstedt), Hungaria in lacu Balaton (IsT- 

 VANFFi), Tyrolia (Hans&irg, Dalla Torre), Boliemia, Bosnia, Ga- 

 rinthia, Carniola (Hansgirg, Gutwinski, Beck, Protic), Austria 

 (Zukal), ad Vindobonam Galicia in «Babiagora» (Gutwinski), Po- 

 • lonia (Raciborski), Rossia ad Moscoviam (Iwanoff), socio Batraclio- 

 spermo moniliformi in Amer. bor. (Faxon), in ditione Alaskan.i 

 (Setchell, Saunders), in lacu «Kilpatriclv Minn.» Amer. bor. 

 (Tilden), in insulis Antillarum, Guadalupa (Conquerant) et Ja- 

 maica (Collins) ; in Uruguaya (Arechavaleta) et in Fuegia Amer. 

 mer. (Borge) ; ad « Oahu » ins. Sandwiceiisium (Schauinsland, 

 VoLz); in lacu Nyassa (Schmidle), ad «Pungo Andongo » Africfe 

 (Welwitsch), in lacubus Indiiie (Hansgirg) et in ins. Ceylona 

 (West). — Nomine Mastigonematis fuscoe (sic!) descripsit cl. 

 Wolle in Bull. Torr. Bot. CI. 1877, p. 138 speciem quandam Ca- 

 lotrichis in Cladophora crescentem, quoe ulterius inquirenda vide- 

 tur: trichomata simplicia indistincte (nisi iuniora) articulata, 7- 

 10 [1. diam., olivacea, vaginis raro prcesentibus, heterocystas sphaj- 

 ricas suae speciei tribuit. 



20. Calothrix articulata (Reinsch) nob., Mastigothrix articulata 1402 

 Reinsch E'reshw. Alg. fr. Kerguel. Island p. 207. — Trichoma- 

 tibus prolongatis, subcylindricis, basin versus paulo incrassatis, di- 

 stincte articulatis, basi ad 16, apice ad 17 [j.. crassis; articulis in- 

 ferioribus indistinctioribus, superioribus loculis distincte disjun- 

 ctis, diam. suba?qualibus, contentu granuloso pnesertim in cellulis 

 basalibus, heterocystis obovalibus diam. trichomatis cequantibus. 



Hah. in trichomatibus singulis vel in strato Hormosiphonis 

 leptosiphonis Reinsch in ins. Kerguelensi (Eaton). 



21. Caiothrix minuta (Reinsch) nob., Mastigothrix minuta Reinsch 1403 

 Freshw. Alg. fr. Kerguel. Isl. p. 207. — Trichomatibus distincte 

 articulatis, apicibus rectis; articulis inferioribus ad 8 [i. crassis, 

 fere dimidio longioribus; heterocystis obovalibus usque subsphffiri- 



cis, diametro dimidium trichomatis aequantibus, ad 4 [a. diam. 



Hab. inter algas minores {Leptotrichen, Coleochmten) in foliis 

 muscorum aquatilium insidentes (Eaton). — A Calotriche fusca ma- 

 gnitudine ad 2-plo minori distincta species, in trichomatibus sin- 

 gulis pars basalis incrassata heterocystam non involvens. 



22. Calothrix sandwicensis (Nordst.) Schmidle in Flora 1897, p. 170, 1404 

 Tab, VI, fig. 12-14! Lemm. Algenfl. d. Sandw. Ins. p. G27, Lo- 

 phopodium sandwicense Nordst. De Algis et Charac. Sandwicensi- 

 bus p. 5, t. I^ f. 3. — Differt a Cal. fusca cellulis 3,5-5,5 |i. diam., 



