XXXVU1 SYNOPSIS OF THE SPECIES. 



CII. CALOTHRIX. 



356. confervicola j filaments short, tufted, glaucous green, opake, blunt, rigid, 

 nearly straight. (Tab. CCLIV.) 



357. mucor, Ag. — Br. El. vol. ii. p. 367. (Unknown to me.) 



358. luteolaj filaments exceedingly minute, slender, scattered, filiform, obtuse, 

 hyaline or containing light green endochrome. (Tab. CCCXLII.) 



359. scopulorum; stratum velvety, dirty green; filaments flexuous, subulate, 

 subattenuate, simple. (Tab. LVIII. B.) 



360. fasciculata; stratum widely spreading, velvety, dark green; filaments 

 straight, subulate, attenuated, fasciculately pseudo-branched. (Tab. 

 LVIII. A.) 



361. pannosaj filaments long, much curled, and densely interwoven into lamel- 

 lated tufts or honey-combed strata; endochrome filling the tube, dark 

 green, densely annulated. (Tab. LXXVI.) 



362. semiplena; filaments long, slender, tough, flexuous, densely interwoven in 

 lamellated tufts ; endochrome glaucous, frequently interrupted, leaving 

 parts of the tube empty. (Tab. CCCIX.) 



363. hydnoides ; patches widely spreading, dark green; filaments flexuous, 

 decumbent, their tips cohering in rigid, erect, tooth-like fascicles ; border 

 rather wide. (Tab. CCCVI.) 



364. csespitulaj tufts convex, soft, cushioned, blackish-green ; filaments densely 

 packed, flexuous, obtuse, not attenuated; border narrow. (Tab. CCCV.) 



CIH LYNGBYA. 

 * Tube continuous ; endochrome cylindrical, imperfectly annulated. 



365. majusculaj strata of large dimensions, blackish-green; filaments thick, 

 bundled, twisted, obtuse; endochrome densely annulated. (Tab. LXII.) 



366. ferruginea; filaments slender, flaccid, forming a stratum of a verdigris- 

 green colour, which at length changes to pale chestnut. (Tab. CCCXI.) 



* * Tube imperfectly articulated ; endochrome distinctly annulated, with pel- 

 lucid interspaces. 



367. Carmichaelii j filaments very long, thickish, curled, grass-green ; tube 

 imperfectly jointed. (Tab. CLXXXVI. A.) 



368. speciosa; filaments very long, thick, flaccid, straight, at length curled, the 

 margin slightly crenate, yellow-green, glossy when dry ; tube imperfectly 

 jointed. (Tab. CLXXXVI. B.) 



369. flaccaj filaments short, tufted, nearly straight, occasionally proliferous, 

 articulated ; articulations shorter than their breadth ; endochrome at length 

 much contracted. (Tab. CCO.) 



370. Cutleriaej exceedingly slender, soft, articulated; articulations as long as 

 broad, the endochrome a,t length spherical. (Tab. CCCXXXVI.) 



CIV. MICROCOLETJS. 



371. anguiformis j sheaths snake-like, simple, decumbent, tapering to one ex- 

 tremity ; striae distant. (Tab. CCXLIX.) 



CV. OSCILLATORIA. 



372. littoralisj stratum vivid green ; filaments thick, dark green, curved ; striae 

 conspicuous, closely set. (Tab. CV. A.) 



373. subsalsa, Ag. — Br. Fl. vol. ii. p. 376. (Unknown to me.) 



