Myxopliycese, Stigonemacese, Stigonema. 58B 



Brasilia ad Minas Carassa (Wainio), iri rjroenlandia (Richter) ; ad 

 Caput Bonse Spei (Reinsoh) ; passiin in Australia (Noudstedt). — 

 Var. parvus Wood Freshw. Aig. of U. S. p. 75, t. X, f, 1 (sub Sir. 

 puloinato): filamentis in c;Bspiteni saturate olivaceo-nigrum arcte 

 intertextis, crassissimis, ramosissimis, luteo-fuscescentibus, varie 

 curvatis; ranmlis polymorpliis, apice plerumque obtuse rotundatis; 

 cellulis in filamentis pluriseriatis, in ramulis 1-4 seriatis tantum; 

 contentu granulato, plerumque saturate fuscescente, interdum Isete 

 viridi; vaginis crassis, dilute luteo-fuscescentibus, interdum achrois. 

 — Amer. bor. (Wood). 



Stigonema boliviense (Mont.) Born. et Flah. Rev. III, p. 75, Sir. 1337 

 holiviensis Montagne in Ann. des sc. nat. IV serie, Bot., 1856, VI, 

 pag. 181. — Filis inter algas varias sparsis, primariis brevibus, 

 aureo-fuscis, 20-34 |x. crassis, ramosis; ramis patenti-erectis aut 

 recurvis, abbreviatis, basi constrictis, vagina tenuissima cellulas 

 arcte involvente, lutea; cellulis subglobosis, transversim oblongis, 

 sursum simplici, deorsum 3- vel 4-pIici ordine dispositis, zonis 

 contiguis; heterocystis numerosis, intercalaribus vel lateralibus. 



Hab. in cacumine Andium Boliviensium (Weddell). 

 Stigonema informe Kuetz. Sp. Alg. p. 319, Tabuhe phycolog. II, 1388 

 p. 11, tab. 38, fig. III, Born. et Flah. Rev. III, pag. 75, Hansg. 

 Prodr. II, pag. 22, Sirosiphon rugidosus Kiitz. Sp. Alg. p. 317, 

 Tab. phyc. II, pag. 11, tab. 36, fig. VI, Rab. Kryptogamenfl. von 

 Sachs. pag. 116, Hilse in Rab. Alg. exsicc. n. 1035! Sirosiphon 

 vestitus Naeg. in Kiitz. Sp. Algar. p. 318, 1849, Rab. Fl. europ. 

 Algar. II, p. 291, Sirosiphon Heufleri Menegh. in Kiitz. Sp. Alg. 

 pag. 316, Tab. phyc. II, p. 10, tab. 35, fig. I, Sirosiphon coral- 

 loides Kuetz. Sp. Alg. p. 317, FI. europ. Algar. II, p. 290, p. p. 

 Wolle Freshw. Alg. of U. S. p. 270, S. informe Kuetz. var. coral- 

 loides (Kuetz.) Hansg. Prodr. II, p. 122, Sirosiphon lacustris Rab. 

 Alg. exsicc. n. 611! Fl. eunp. .\lgar. II, p. 291, Sirosiphon cru- 

 staceus Rab. Alg. exsicc. n. 13M a et b (nec c, d, e)\ FI. Europ. 

 Algar. II, p. 289, Sirosiphon Guttula Wood Prodr. p. 132, Contrib. 

 p. 73, t. 8, f. IV, Stigonema mamitlosum Kirchn. Alg. v. Schles. 

 p. 229. — Strato expanso, c«spitoso vel crustiformi, fusco vel fu- 

 ligineo-nigrescente, submucoso; filis 1-2 mm. altis, a basi decum- 

 bente erectis, irregulariter ramosis, 40-70 {x. crassis; ramis rectis 

 vel arcuatis, 45 [a. crassis, superiore latere ramulosis, omnibus 

 hormogouiiferis, nunc longis, nunc brevibus; vagina crassa, luteo- 

 fusca, lamellosa, gelatinosa; cellulis circiter 15-18 [j.. crassis, qua- 



