fePH- Myxophyceae, Stigonemaceae, StigonemEl,. 



episporio levi, atro-bmnneo instruct?e, granulosse, maturge 16-18 \l. 

 crasssB. — Var. saxicola (Naeg.) B. et FI. Rev. III, pag. 73 (in 

 postilla) Hansg. Prodr. II, pag. 23 c. ic, W. et Nordst. Alg. exs. 

 n. 669 et 751 b\, Sirosiphon saxicola Naeg. in Kuetz. Sp. Alg. 

 p. 316, Tab. Pbyc. II, pag. 10, t. 3B, f. IV, Rab. Alg. exs. n. 156 

 et 1120! Krypt. v. Sachs. p. 216, Stigonema saxicolum Cooke Brit. 

 Freshw. Alg. p. 273, t. CXI, f. 1 : strato plerumque tenui, cru- 

 staceo; filamentis cum vaginis usque ad 21, saepe vix 15 \x. diam.; 

 articulis plerumque compressis, globosis, in filamentis primariis 

 binis, in ramulis brevibus, saepe dense insistentibus, apice trun- 

 catis, singule seriatis; vaginis brunneis vel brunneo-luteis. — Pas- 

 sim cum typo. 



7. Stigonema turfaceum (Berk.; Cooke Brit. Freshw. Algse pag. 273, 

 1884, B. et Fl. Rev. III, p. 74, Hansg. Prodr. II, p. 22, Scyto- 

 nema minutum Breb. et God. x\lg. de Falaise pag. 23, pl. III, 

 non Ag., Dematium turfaceum Link Spec. I, p. 134, Scytonema 

 turfaceum Berkeley in Engl. Bot. tab. 2826, f. I, Hassallia tur- 

 fosa Hass. Brit. Freshw. Alg. I, p. 232, Kuetz. Sp. Alg. p. 318, 

 Sirosip/ton pulvinatus Breb. in Kuetz. Tab. phyc. II, p. 10, t. 36, 

 f. I, Rab. Fl. europ. Algar. II, p. 290, Alg. exs. n. 21811 Wood 

 Prodr. pag. 75, Zanard. Phyc. indic. pug. p. 27, WoIIe Freshw 

 Alg. of U. S. pag. 268, tab. CXC, f. 1-3, Sirosiphon secundatus 

 Kiitz. Sp. Alg. p. 317, Tab. phyc. II, pag. 11, t. 37, f. I, Stigo- 

 nema mamiitosum Kirchn. Algenfl. v. Schles. p. 229 p. p. — 

 Strato pulvinato, nigro, velutino; filis e basi decumbente ascen- 

 dentibus, 1 mm. altis, 27-30 [i. crassis, varie flexuosis, ramosis; 

 ramis filo primario conformibus, erectis, apice hormogoniiferis; va- 

 gina crassa, luteo-fusca, laniellosa; articulis fere ubique 2-4 cel- 

 lulis constitutis; heterocystis lateralibus; hormogouiis 45-^12 [x. 

 Hah. ad terram in ericetis necnon ad rupes humo obtectas 

 Helvetia^ (Wartmann, Schleicher, De Wildeman), Gallite (Brebis- 

 soN, Lamy de la Chapelle, Mougeot), Scotia3, Hiberniae (West), 

 Anglia3 (Smith, Cooke, West), ins. Faeroensium (Wille, Boer- 

 gesen), Hungarite (Istvanppi), Austrife (Heufler), Tyrolise (Heu- 

 fler, Aenold, Kerner), Riesengebirge fScHROEDER, Lemmermann), 

 Bohemise (Hansgirg), Italiae in cataracta «delle Marmore» (Martel), 

 et «Vesuvio» fLicopoLi), Fennii^ (Elpving), Suecia? (Nordstedt), 

 Indise (Turner), Koh-Chang (Gomont), ins. Ceylona? (Beccari), Ger- 

 manise (Al. Braun, Kuetzing, Rabenhorst, Kirchner), Americ.e 

 foederatie ad Philadelphiam (Wood); in ditione Maine (W. West), 



