M^rxophycese, Stigonemacese, Stigonema. 579 



tum V\. dan. tab. 2315 (1840), Liebm. Bemaerkin<>er til daiisk 

 Algfl., in Kroyers Tidskrift II, fasc. 5, pag. 480, tab. 6, fig. III, 

 Sirosiphon ocellatus Kiitz. Fl. germ. pag. 178, Sp. Alg. pag. 317, 

 Tab. pbyc. II, p. 11, t. 37, fig. II, Desm. Pl. crypt. de France, 

 ser. II, n. 139! Erbar. critt. ital. Ser. II, n. 1429! Rab. Alg. exs. 

 pag. 2182! FI. europ Algar. II, pag. 286, Crouan Fl. du Finist. 

 p. 118, Arescb. Algae scandin. exsicc. ser. II, n. 389, non Rab. Alg. 

 n. 1176, Wolle Freshw. Alg. of U. S. p. 272, tab. CXCIV, f. 1-3, 

 Sirosiplion intermedius [3 Braunii Kiitz. Sp. Algar. pag. 317, 

 Sirosiphon neglectus Wood Prodr. p. 133, SirosipJion Crameri 

 Briigg. Biindn. Alg. p. 267, Rab. Fl. Eur. Alg. II, pag. 288 (fide 

 Hieronym.), Wolle Freshw. Alg. of U. S. pag. 272, tab. CXCIV, 

 fig. 11-18, Sirosiphon pellucidulas Wood Prodr. p. 133, Contrib. 

 pag. 69, tab. 8, fig. II, Sirosiphon compactus Biene in Rab. Alg. 

 exs. n. 1412! p. p. (sentent. Hieronym.), Wood Contrib. pag. 69, 

 tab. 8, fig. III, 1872 (?) nec Ag. nec Hass., Stigonema compactum 

 Kirchn. Alg. v. Schles. p. 230 p. p, Sirosiphon ocellatus [3 globosus 

 Nordst. in Rab. Algen, n. 2398! Stigonema oceltatum p glol>o- 

 sum W. et Nordst. Algte exsiccat. n. 93 ! et 868, p. p. (fide Hie- 

 ron.), Hansg. Prodr. II, p. 24, Sirosiphon pluviale Crouan in M. 

 et Schr. Ess. de class. des Alg. de la Guad. IP edit. p. 36. — Strato 

 caespitoso vel pulvinato, pannoso, tomentoso, fusco; filis erectis, 

 basi decumbentibus, 3-8 mm. altis, irregulariter ramosis; ramis 

 elongatis, rectis, patentissimis, filo primario vix tenuioribus, 35- 

 45 [J.. crassis, omnibus hormogoniferis; vagina crassa, lamellosa, 

 hyalina vel luteo-fusca; cellulis magnitudine variis, uni- vel bise- 

 riatis, aerugineis, 20-30 jx. crassis, tegumento proprio saturatius 

 colorato cinctis; heterocystis raris, lateralibus; hormogoniis 15 [x. 

 latis, 50-65 ^. longis. 



Hah. in ericetis turfosis, ad terram paludosam, in fontibus, 

 interdum libere natans, per Norvegiam (Lyngbye, Hofman-Bang), 

 Sueciam (Lyngbye, Areschoug, Lagerheim, Nordstedt, Wittrock, 

 Agardh), Lapponiam lulensem (Bohlin), Fenniam (Elfving), Islaii- 

 diam (Hariot), Poloniam (Kozlowski), Daniam (Lyngbye, Liebman, 

 Rosenvinge), insulas Faeroenses (Lyngbye, Wille, Boergesenj, 

 Belgium (De Wildeman), Angliam (Dillwyn, Harvey, Hassall, 

 West), Scotiam (Greville), Lusitaniam (Moller), Galliam (Lamy 

 DE la Chapelle, Bornet, Flahault, Mougeot), Germaniam (Al. 

 Braun, Willdenow, Kirchner, Hennings, Hieronymus, M. Schmidt, 

 Lemmermann etc), Helvetiam (BRiiGGER, Schleicher, Cramer, Hepp, 



