ConfervoideiG, CEdogoniaceae, GEdogonium. 45 



antlieridiis 1-2-celIularibiis; cellula terminali obfcusa vel apicula- 

 ta; crassit. cell. veget. 8-10 y.. altit. o-6-plo majore; oogon. o4- 

 ;j8- 32-40; oospor. 22-23^22-23; cell. antlierid. 8-9::: 9-15. 



Hab. in spliagnetis prope (c Neudamm » Borussise (H. Itzigsohn), 

 in Silesia (Kirchner), Hibernia et Scotia (Archer) et in Suecia 

 (Wittrock). 



39. CEdogonium mammiferum Wittr. Prodr. Monogr. CEdog. p. 16, 07 

 n. 32. — Oogoniis singulis, rarius binis, oblongis, processibus 

 medianis 12, mammiformibus, 6 majoribus, 6 minoribus, a ver- 

 tice visis stellatis, radiis 12, 6 majoribus cum 6 minoribus alter- 

 nis; incisuris inter radios rotundatis ; oosporis depresso-globosis, 

 oogonia non complentibus; antheridiis unicellularibus, subepigynis; 

 crassit. cell. veget. 5-8 y.. altit. 4-7-pIo majore ; oogon. 27 c:; 25-30 ; 

 oospor. 17-20:^15-16; cell. antlierid. 6 =; 7. 



Hab. in Suecia et Norvegia. 



2. Oosporce subellipsoideas. 



40. (Edogonium excisum Wittr. et Lund. in Wittr. CKlog. nov. p. 3, 9S 

 t. 1, f. 1-4, Prodr. Monogr. (Edog. p. 10, n. 33, Cooke Brit. Freshw. 

 Alg. p. 157, t. 59, f. 4. — Oogoniis singulis, subbiconico-oblongis, 

 processibus medianis 9, rotundatis, parvis ; oog. profunde circum- 

 scissls, a vertice visis orbicularibus, margine leviter undulato; 

 oosporis ellipsoideis, in medio quasi constrictis, oogonia non coni- 

 plentibus; antheridiis 1-2-ceIIularibus, subepigynis vel hypogynis; 

 cellula terrainali obtusa; parte suprema fili curvata; crassit. cell. 

 veget. 3,5-5 a. altit. 5-6-pIo majore; oogon. 13-15 ^ 18-25; oospor. 

 9-12::; 15-18; cell. antherid. 3-3,5 ^; 6-7. 



Hab. in Suecia, Austria, Hibernia (Archer), Belgio (Do-Wilde- 

 man) Hungaria (Istvanffi) nec non in Sene gallia (Nokdstedt). 



41. (Edogonium Pringsiieimianum Archer in Quart. Joura. Micr. So. 99 

 1808, p. 295 nec G^dogonmDi Pringslieimu Cram.! QU. Arclie- 

 rianwn Cooke Brit. Freshw. Alg. p. 157. — Oogoniis magnis, el- 

 lipticis; poro superiore apertis; oosporis ellipticis, striis longitu- 

 dinalibus, grossis exaratis, oogonia haud complentibus. 



Hab. in Hibernia (Archer). — Species raonoica, oosporis stria- 

 tis pulcherriraa. — Nomen a cl. Archer datura, nostra sententia, 

 servandum, nec in illud a cl. Cooke propositum inutandum. 



Sectio 2. Androgynia (Wood) Hansg. Prodr. Algenll. v. Hohraen p. 43, An- 

 drogynia Wood Contrib. Hist. Freshw. Alg. oi' N. Amer. 1872, p. 195. (Edo~ 

 goniuin Sectio 2, subsectio 1, Wittr. Prodr. Monogr. (Edog. p. 17. 



