50 Myxophycese, Chroococcacese, Gloeocapsa. 



Suhgen. IV. BiciiATrA (Turp.') mihi em., Eugl<vocapsa Hansg. loc. cit., nyalocap.sa 

 Kirchn. loc. cit. — Contentus viridis glaucus, rarius luteolus vel brunneo- 

 luteus. Tegumenta membranaque hyalina vel pallide luteola aut glauce- 

 scentJa, rarius brunneo-nigrescentia. 



Sectio I. Tegumenta stepe brunneo-nigrescentia. 



44. Gloeocapsa nigra (Menegh.) Grun. in Rab. Fl. Eur. Alg. II, p. 36, 

 Hansg. Prodr. II, p. 152, Microcystis nigra Menegh. Nostoch. 

 p. 75, n. 3, t. IX, f. 3 et 3 a-h, Bichatia nigra Trev. Noniencl. 

 Alg. I. pag. 61. — Strato gelatinoso, rudi, crustiformi, papilloso- 

 rugoso, indefinito, nigro; cellulis sphiericis, 5-8 [x. crassis, singulis, 

 geminis vel quaternis in familias consociatis, tegumentis tenuibus 

 hyalino-nigrescentibus, contentu opaco, obscuro, viridi-cinerescente. 



Hab. in fissuris raurorum in Euganeis (Meneghini), prope 

 Wallendorf Hungariae (Kalchbrenner), in Austria, Boliemia (Hans- 

 girg), Carinthia (Schmidle). — Var. minor Hansg. Prodr. II, p. 152: 

 Cellulis 3-5 \u crassis, globosis; 2-4-8 in familias consociatis tegu- 

 mento adha^rente, brunneo-nigrescente, plerumque opaco; in Bohe- 

 mia cum typo (Hansgirg). — Familiie quaternatie 12-15 (j.. diam. 



45. Gloeocapsa deusta (Menegh.) Kuetz. Sp. Alg. p. 224, Rab. Fl. Eur. 

 Alg. II, p. 48, Hauck Meeresalg. p. 513, Ardiss. Phyc. Medit. II, 

 p. 294-295, Microcystis cleusta Menegh. Nostoch. p. 81, t. XI, f. 2, 

 Thaumaleocystis deusta Trevis. Alg. Coccot. p. 79, Coccochloris 

 deusta Menegh. in Atti d. II Riun. degli Scienz. ital. p. 173. — 

 Strato crustaceo, maculceformi, viridi-nigrescente, orbiculari; cellulis 

 6-8 {X. crassis, singulis aut 2-4 in familias 10-80 {x. latas consocia- 

 tis; tegumentis crassis obscuris opacis; contentu viridi nigrescente. 



Hah. in saxis et muris maritimis undis irroratis Genute (Me- 

 neghini, Ardissone;, in Adriatico (Hansgirg, Hauck) et ad litora 

 Sicilia' inter Syracusas et Messanam (Spinellij. 



46. Gloeocapsa montana Kuetz. Phycol. gen. p. 173, n. 1, Tab. Phyc. I, 

 T. 19, Sp. Alg. p. 218, Rab. FI. Eur. Alg. II, p. 36-37, Romer 

 Alg. Deutsch. p. 63, t. X, f. 264, Hansg. Prodr. p. 152, Kirch. 

 Alg. Schles. p. 257, Rabenh. Alg. Eur. n. 305! Gloeocystis moritana 

 Richt. in herb.l Bichatia Kuetzingiana Trevis. Alg. Coccot. p. 62, 

 n. 158, Globulina viscosa Turp.? (sec. Kuetzing), Bichatia m.on- 

 tana Trev. Nom. Alg. I, p, 64, Palmella botryoides uda Kuetz. 

 in Lintuea VII, p. 376, Hcematococcus microsporus Hassall Brit. 



