343 



parva, \ i\ pollicaris, ad trcs polliccs clongata, dcnsc cacspitosa, lactc viri- 

 dis aut expallens, ramosissima; rarais basi connatis, [ jho — V 27 '" = 

 0,00179 0,0032 eraseis, ad apiccra versus fasciculato-ramulosis ; articulis 

 diametro 5 — 10-plo longioribus, articulo tcrminali sacpc tumido, diametro 

 duplo triplove longiorc ; cytiodermate turgesccntc. v. s. 



* tenuior (Cladophora Kotschyana Grun. in litt. cum icone et 



specim.), tcnuissima, saturatc viridis, flaccida, 2 — 4" longa, 



ramis di - vel trichotomis , ramulo medio , plcrumque breviori, 



ramulis ultimis subsecundis ; articulis infcrioribus diamctro 



(' To'") ad 10-plo longioribus , superioribus diametro ('/ioo'") 



plerumque 4-plo longioribus. 



Hab. in lignis submersis, rotis molarum, raro : in lacu „Ziegelsee" 



ad Schwerin (Brockmiiller sub No. 25.), (forma abbreviata ad Neudamm 



Borussiae (Itzigsohn et Rothe); forma ad 4 l /i" elongata in Hungaria 



(prope Kezsthely: Mich. Hutter) ; forma * in lacu „Neusiedler See" 



Hungariae, ubi legit cl. Kotschy 1852. 



Forma III. squarrulosa (Cladophora squarrulosa Grun. in litt. 

 cum icone et speciminibus ad me datis), tenuissima flaccida, ramosis- 

 sima, 3 — 6-uncias longa; ramis irregulariter dispositis, modo subsecundis 

 modo oppositis , plerumque basi breviter connatis ; ramulis saepe squar- 

 ruloso-hamulatis ; articulis inferioribus diametro ( l t io'") 6 — 8-plo, supe- 

 rioribus diametro (Vso -- V'ioo'") 4 — 6-plo longioribus; cytiodermate 

 crassissimo, longitudinaliter manifesto plicato. v. s. 



Hab. in aqua dulci prope Tergestum, ubi 1856 detexit cl. A. Grunow. 



6. Cl. brachystelecha Rabenh. (Alg. N. 654!). 01. obscure viri- 

 dis , sicca pallida, pygmaea, 2 — 4, rarius 6 lineas longa, remosissima, 

 intricata, plerumque culmigena; ramis primariis V'30 — V 40 "' = 0,00295 

 —0,0022") crassis, ramulis ultimis V'eo— V-o'" = 0,00147—0,00128" 

 crassis ; articulis diametro 4 — 12-plo longioribus ; cytiodermate subcrasso, 

 hyalino , subtiliter plicato - striato ; cytioplasmate inprimis cellularum 

 superiarum laxe spiraliter ordinato. v. v. 



Hab. in lacu salso ad Halam , Arundinis culmos densissime ob- 

 duccns, 1857 detexit cl. Bulnheim ; in lacu ,,Stienitz-Scc" prope Bero- 

 linum reperit cl. Bauer ; in Polygono amphibio prope „Obcrsontheim" 

 1857 legit Kemmler. 



C. Cladophorae initio affixae, postea in globum saepe libere natantem 



dense congregatae. 



7. Cl. Aegagropila (Conferva Aegagropila Linn. Ag. Syst. p. 117. 

 N. 106.). 01. obscure viridis, filis rigidis, ramosissimis, e centro communi 



