352 Myxophycese, ScliizotrichetB, Inactis. 



adpressis ; vaginis crassiusculis, apice acuniinatis, chlorozincico 

 jodurato crerulescentibus; trichomatibus diliite serngineis, in basi 

 pluribus, in pseudoramis paucis vel solitariis, ad genicula constrictis, 

 1,4-3 \i.. crassis; articulis diam. trichomatis suboequilongis vel eo 

 usque 2-plo longioribus, 1,2-3,5 jx. longis; cellula apicali acute conica. 

 Hab. saxa et ligna vetusta in aquis rapide fluentibus immersa, 

 Gallite ad Melun (Roussel), Bourges (Ripart), Sabaudiie ad 

 Chamounix (Gomont), Helvetia^ ad Turicum et in lacubus Neoco- 

 mensi et Constantite (Naegeli, Braun, Kuhn, Hepp, Rtchter, 

 Kirchner); in A.ustria (Sauter, Grunow, Freyn, Hansqirg, Schie- 

 dermayr, Beck, Richter), Tyrolia (Kirchner, Hansgirg) lacu Bena- 

 censi (Kirchner), Hungaria (Martius), Algeria (Debray) ; in Algis 

 prope lacum Michigan Amer. bor. (Wolle) et Connecticut (Set- 

 chell); ad «Coxeira de Taruma» Brasilite Amer. mer. et passim 

 (Dickie). — forma virescens Grun. in Rab. FI. Eur. Alg. II, p. 160. 

 In Austria (Preydinger, Grunow). Inactis fasciculata Kuetz. accu- 

 rate describitur a claro G. Murray in opere cui titulus, Calc. Pebbl. 

 formed by Alg. Phycol. Memoirs XIII (1895) c. tab. 19. 



4. Inactis Sauteriana Grun. in Rab. FI. Eur. Alg. II, p. 160. — Strato 

 minutissimo, globoso, epiphytico; trichomatibus 2,5-6 jj.. diam.; arti- 

 culis filamentorum crassiorum diam. 2-3-plo brevioribus, ad geni- 

 cula evidenter punctatis, filamentorum tenuiorum diametro iequa- 

 libus; vaginis achrois, 2,7-4,5 [x. lat. 



Hah. in Cladophora glo merata prope Salisburgum (Sauter). 



5. Inactis rubella (Gom.) Nob., Schizothrix rubella Gom. Monogr. 

 p. 300, t. VI, f. 4-5, W. et N. Alg. exs. n. 1153! — Strato pul- 

 vinato vel contorto, crustaceo, calce incrustato subfragili roseolo 

 aut calce vix incrustato rubello, siccitate durissimo . filis flexuosis, 

 subdichotome pseudoramosis ; vaginis amplis et lamellosis, fim- 

 briatis, interdum roseolis, apice acuminatis aut ochreatis, chloro- 

 zincico jodurato cserulescentibus; trichomatibus dilute terugineis, 

 in vaginis paucis subparalleliter dispositis vel solitariis, ad genicula 

 non constrictis, 2,5-4,5 [j.. crassis; articulis diam. trichomatis longio- 

 ribus, ad 7 \y. longis, contentu grosse granuloso-farctis. 



Hah. ad muros stillicidiis irroratos Gallise australis prope 

 Antipolim (Thuret); ad ripas lacus Neocomensis Helvetiae (A. 

 Braun). 



6. Inactis polythrix (Hansg.) Nob., Microcoleus polytlirix Hansg. Ueb. 

 neue Siissw. u. Meeresalgen 1890, t. I, f. 11. — Strato meml)ranaceo, 

 flavo-brunneo, plerumque tenui, sublubrico; filamentis plerumque 



