ConfervoiJecB, OEdogoiiiaceae, (Edogoiiium. 39 



17. (Edogonium autumnale Wittr. Prodr. Monogr. CEdog. p. 11, n. 15, 75 

 Wolle Freshw. Alg. U. S. p. 73, t. 81, f. 1-5. — Oogoniis sin- 

 gulis, oboviformi-globosis, operculo apertis, rima angustissima; 

 oosporis subglobosis, oogonia complentibus; antheridiis 1-2-cellu- 

 laribus, subepigynis vel hypogjnis vel sparsis; antherozoidiis bi- 

 nis; cellula terminali apice brevi-acuta; crassit. cell. veget. 16- 

 10 ij.. altit. IVo-Syo-plo majore; oogon. 39-43 -45-51 ; oospor. 37- 

 40:^39-43; cell. antherid. 15-18 ::; 9-10. 



Hab. in Suecia (Wittrock) et Fensylvannia Americoe borealis 

 (Wolle). 



18. (Eclogonium varlans WiLtr. et Lund. in Wittr. Prodr. Monogr. 76 

 ffidog. pag. 11, n. IG. — • Oogoniis singulis, depresse oboviformi- 

 globosis, poro superioro apertis; oosporis globosis, oogonia non 

 plane complentibus ; antheridiis 1-9-celluIaribus, sparsis ; anthero- 

 zoidiis binis; crassit. cell. veget. 12-16 a. altit. 3-8- plo majore; 

 oogon. 35-46=5 31-55; oospor. 31-39:^30-36; cell. antherid. 11- 

 15^5-6. 



TTab. in Suecia (Lundell). 



19. (Edogonlum pluslosporum Wittr. Prodr. Monogr. (Edog. p. 11, 77 

 n. 17, Wolle Freshw. Alg. U. S. p. 72, t. 74, f. 20-21. — Oogo- 

 niis singulis, subelliptico-globosis, poro paullum supr a raedium sito 

 vel submediano apertis; oosporis globosis, oogonia non plane com- 

 plentibus; antheridiis 2-6-cellularibus, subepigynis (rarissimis) '); 

 cellula terminali obtusa; crassit. cell. veget. 14-19 ^. altit. 2^0- 

 3\2-plo majore; oogon. 38-45 :5 42-50 ; oospor. 33-39 s 31-37; cell. 

 antherid. 12-14^8-12. 



Hab. in Suecia (Wittrock) et Pensylvannia, California et New 

 Jersey Amer. bor. (Wolle). 



20. Edogonlum tyrolicum Wittr. Prodr. Monogr. (Edog. p. 12, n. 18. — 78 

 Oogoniis singulis, elliptico-globosis, poro superiore apertis ; oospo- 

 ris globosis, oogonia non complentibus ; antheridiis 1-1-cellulari- 

 bus, subepigynis vel subhypogynis; antherozoidiis binis; crassit. 

 cell. veget. 15-24 a. altit. 4-5-plo raajore; oogon. 48-53:^62-70; 

 oospor. 42-48^42-48; cell. antherid. 12-21^:10-11. 



Hab. in Tyrolia Austria3. 



21. Cdogonlum polymorphum Wittr. et Lund. Prodr. Monogr. ffidog. 79 

 p. 12, n. 19, Wolle Freshw. Alg. U. S. p. 73, t. 84, f. 16-19. 

 — Oogoniis singulis, (plerumque uno solo in linoquoque exempla- 



^) Species haec forsan trioica est. 



