284 _ 



articulis granulosis , diametro modo aequalibus modo paulo vel duplo 

 longioribus ; vaginis arctis , achrois, vitreis. v. s. 



Diam. trich. c. v. l /m — V200'" = 0,00035 — 0,00044", ramul. 

 Vjoo— V^oo"' = 0,00022—0,00029". 



Hab. in plantis aquaiicis prope „Habendorf" in Silesia (Hilse), 

 ad „ Falaise " Galliae (De Brebisson). 



Ab antecedente vix diversus. 



H. Brebissonii Ktz. (Tolypothrix Brebissonii Ktz. 1. c). H. caespi- 

 tosus, 3 — 4 iincas longus , sordide aerugineo- fuscescens ; trichomatibus 

 ramosissimis, internis dilute fusco - olivaceis , distinctissime articulatis, 

 articulis granulosis , diametro plerumque aequalibus ; ramis ramulisque 

 elongatis , gracillimis , laxe intricatis , internis dilute aerugineis , plus 

 minus distincte articulatis ; articulis granulosis , diametro plerumque 

 longioribus ; vaginis trichomatum sat amplis , saepe luteis vel fusces- 

 centibus, ramorum et ramulorum arctis achrois hyalinis. v. s. 



Diam. trich. c. v. ad '/115"' = 0,00077", ram. V^oo — VW" = 

 0,00017 — 0,00031". 



Hab. in muscis aquaticis, sphagnis Galliae. 



H. tenuissimus Grun. (in litt). H. rhizophilus , parasiticus , iioc- 

 cosus , irregulariter squarroso - ramosissimus ; trichomatibus internis pal- 

 lidis , saepe interruptis , indistincte articulatis , varie curvatis ; articulis 

 subhomogeneis , diametro subaequalibus ; ramulis divaricatis , passim 

 corpuscula chroococcoidea gerentibus ; vaginis arctissimis , achrois, hya- 

 linis. v. ic. 



Diam. c. v. V'00— l /soo"' = 0,00012—0,00017". 



Hab. in Lemnae minoris radiculis in stagnis paludosis ad „ Kuf- 

 stein" comit. Tyrolensis detexit mense Septembre 1860 cl. de Heufler. 

 Habitu Hypheothricis. 



IiXVI. J9Ia$tigOCladllS Cohn (1863): Trichomata evagi- 

 nata , dichotome ramosa , moniliformia , cellulis interstitialibus sub- 

 globosis, ramis tenuibus flagelliformibus secundis e cellulis cylindricis 

 et interstitialibus ellipticis formatis instructa , in stratum difForme car- 

 nose spongiosum implicata. 



M. lamino6US (Ktz.) Cohn (in Verh. der schles. Gesellsch. fvir 

 vaterl. Cultur 1864. Merizomyria laminosa Ktz. Phycol. gener. p. 232. 

 N. 3. M. aponina Ktz. Alg. exs. N. 133. an Sphaerozyga Jacobi Ag. ?). 

 M. strato lamelloso, compacto, calcaria carbonica incrustato , aerugineo ; 

 ramis tenuissimis ; trichomatum cellulis giobosis , passim biseriatis, 

 ramorum cellulis cylindricis elongatis. v. v. 



