OSCILLATORIA. 259 



Scytonema Bangii Lyngb. Dan. t. 28. Oscillatoria Bangii 

 Carra. MS.; Grev. Ediu. p. 303. O. Fricsii Ilarv. 

 Hook. Brit. Fl. 373.; Harv. in Manual, 162. 



Hah. On mosses in shady subalpinc situations, near Edin- 

 burgh : Dr. Greville. Appin : Capt. Carmichael. Kil- 

 larney : W. H. Harvey. Co. Kerry : Mr. Andreios. 



" Stratum two or three inches broad, bright jeruginous 

 green. Filaments closely interwoven into erect, elongated, 

 tooth-like fascicles, an inch or more in height, pale green; 

 under the microscope annulated Avithin, with a broad limb or 

 border. Well marked by its erect spinulose habit." — Harv 

 The filaments in the dried state are flaccid, long, and apparently 

 of equal diameter. Strife scarcely conspicuous, rather close. 



26. Oscillatoria lucifuga Harv. 



Plate LXV. Figs. 5, 6. 

 Char. Stratum blackish green, bristling icith minnte tooth- 

 like fascicles of filaments. Filaments subulate. 



Colothrix lucifuga Carm. T^ISS. ; Harv. Hook, Br. Flor. 

 p. 373. ; Harv. Manual, p. 162. 



Hab. " On the decayed trunk of an alder, lying In a ravine, 



and buried under a heap of rubljish," at Appin : Capt. 



Carmichael. 



" Stratum spreading, dull, blackish green, bristling all over 



with minute erect fascicles about one- third of a line high. 



Filaments thickish, flexuous, strongly agglutinated together, 



annulated within, pale yellowish. Ahnost like the last species 



in miniature "(//a?'y.), of which it may be but a variety. 



27. Oscillatoria tenuissima Ag. 



Char. " Dark green, ascending, tufted. Filaments simple, 

 cylindrical, even, jcithout any visible joints.'''' — Harv. 



O. tcjiuissima Sm., Eng. Bot. t. 2584. ; Harv. in Hook. Br. 

 Fl. 373.; Harv. in Manual, p. 162. 



