Myxophycese, Scytonemacese, Scytonema. 499 



Cyan. Dan. p. 101, Gom. in J, Schm. Fl. of Koh-Chang, Myxoph. 

 p. 208, Setch. in C. H. et Setch. Phyc. bor, Amer. n. 655! Humphr. 

 in C. H. et S. Phyc. bor. Amer. n. 60! Lagerh. et Hirn in W. 

 N. et Lag. Alg. exs. n. 1316! Scyt. cincinnatmn Thur. Ess. de 

 class. des Nostoch. p. 9, in Ann. des sc. nat, 6® serie, Bot., I, 

 p. 380, 1875, Nordst. De Alg. et Char. ex ins. Sandwic. a S. Berggr. 

 rep. p. 6, Wittr. et Nordst. exs. n. 274! 5841 764! 873! ^lali. et 

 Henn. in H. et R. Phyk. univ. n. 35! Hansg. in Fl. exsicc. Austr. 

 Hung. n. 1596! Borzi Morf. etc, in N. G. b. it. XI, p. 373, Wolle 

 in Bull. of Torr. Bot. Club VHI, pag. 38, Born. et Fhih. Rev. 

 pag. 89, Hansg. Prodr. II, pag. 35, Wolle Freshw. Alg. of U. S. 

 p. 254, t. CLXXXV, f. 8-10, Gutwinsld Fl. Glonow okolic Lwowa 

 p. 112 (descr. sporarum), Calothrix lanata Kuetz. Alg. Dec. I, 

 n. 5, 1833 (fide Bornetii), Oscillaria lanata Corda Ahn. de Carlsb. 

 1836, p. 213 (fide Hansgirg), Oscillatoria crispa Ag. Syn. Alg.p. 108, 

 Lynghya crispa Ag. Syst. Alg. p. 74, Lynghya cincinnata Kuetz. 

 Phyc. gen. p. 226, Sp. Alg. p. 283, Tab. phyc. I, p. 48, t. 89, 

 f. V, Rab. Alg. exs. n. 557! 1917!, Spermosira major R-Ah. Algen 

 n. 469, Lyngbya major Kuetz. var. Kerguelensis Reinsch Ker- 

 guel. Isl. Alg. p. 70 (fide Hansgirg), Clirysostigma cincinnatum 

 Kirchn. Algenfl. von Schles. I, p. 238, 1878, Scytonema lanata (sic) 

 Dalla Torre et Sarnth. Alg. v. Tyr. Vorarlb. u. Liechtenst. p. 129. 

 — Strato caespitoso, intricato, lanoso, viridi - fuscescente vel oli- 

 vaceo, filis 16-36 [x., sa^pius 18-30 |jl. crassis, 3 centim. et ultra 

 longis, crispis; pseudo-ramis conformibus; vaginis firmis, mem- 

 branaceis, hyalinis, rarius fuscescentibus ; trichomatibus 14-30 jx. 

 crassis (sententia Gutwinskii adsunt trichomata 9 [jl. tantum crassa), 

 viridibus vel fusco-violaceis ; articulis diametro 8-plo brevioribus, 

 heterocystis depressis vel quadratis, modo numerosis, nonnunquam 

 fere nuUis; sporis ad 12 [x. diam., ad 10 [j.. longis, globoso-ellipticis, 

 paullo compressis inter heterocystas vel prope heterocystas, epi- 

 sporio distincte crasso, contentu granulato luteo cferulescenti. 



Hab. in rivulis, fontibus et stagnis Italias ad Veronam (Forti), 

 Gallise (Mougeot, Bornet, Flahaut), Anglise (Abbott, West), Hel- 

 vetiae (A. Braun, Schleicher), Germania^ (Kuetzing, Bulnheim, 

 GLiiCK, Reinsch, Rabenhorst, Hennings, Kirchner), Fennite 

 (Elfving, Hirn), Rossi;e ad Moscoviam (Iwanopf), DaniiC (Nord- 

 STEDT, Rosenvinge), SuccijB (Agardh, NoRDSTEDTj, Sibiria3 (Ko- 

 zLOwsKi), Bohemise, Tyroliae (Hansgirg), Austriae (Kalchbrenner), 

 Galici» (GuTvviNSKi, Alexenko), Dalmatiie (Hansgirg), Corsicse 



