Monographie der Oedogoniaceen. 215 
114. Oe. crassiusculum Wrrre. 
1870 Wittrock (I) p. 132; 1874 Wittrock (IV) p. 24; 1884 Cooke p. 162, 
t. 60, f. 5 (fig. haud bona!); 1889 De Toni (I) p. 54. 
Oe. dioicum, nannandrium, gynandrosporum; oogoniis singulis vel binis, 
globoso-oboviformibus vel subglobosis, poro superiore apertis; oosporis ellipsoideo- 
globosis vel globosis, membrana levi, incrassata, oogonia fere complentibus ; 
cellulis suffultoriis eadem forma ac cellulis vegetativis ceteris; androsporangiis 
2—5-cellularibus; nannandribus subrectis, in cellulis suffultoriis vel prope has 
sedentibus, antheridio exteriore, 1—(?)-cellulari ; 
crassit. cell. veget. 27—30 u, altit. 3'/,—5-plo major; 
$ o0gon. 54—00 ,, , 60—75 u; 
bh 00Spor. 51—57 ,, , 52-63 +; 
p cell. androsp. 26—28 ,, „ 10-18 „; 
» stip. nannandr. IS. 603: 
" cell. antherid. 1—9 ,, , —. 
Hab. in 
Britannia: in Epping Forest ad Loughton Anglie (sec. Cooke). Suecia: Og. 
in lacu Erlängen ad Sturehof (sec. Wittrock). 
pidioandrosporum Nozpsr. et Wirk. 
Exs. 1879 in Wittr. et Nordst. Alg. exs. Fasc. 5, N:o 208 a et b (Fasc. 21 
p. 7); 1880 1. c. Fasc. 7, N:o 310; 1888 in Phykoth. Univ. Fasc. V, N:o 226; Rou- 
meguére, Alg. exs. N:o 791; 1894 in Tilden, Amer. Alg. Cent. I, N:o 1 sub nom. 
Oe. Huntii Wood; 1895 in Phycoth. Bor.-Amer. Fasc. II, N:o 72 sub nom. Oe. eras- 
siusculum Wittr. (vide infra). 
1887 Wolle (III) p. 80, t. 77, f. 14—19 (fig. minus accurate facta!); 1889 De 
Toni (I) p. 55; Oe. crassipellitum West (V) 1899 p. 55, t. 394, f. 3—5. 
Var. idioandrospora, oosporis haud raro angulari-oboviformibus vel angu- 
lari-globosis; 
crassit. cell. veget. 925—936 u, altit. 21,—5'/-plo major; 
5 oogon. 48—59 ,, , | 517—90 u; 
». Lt GDSPO: 49—57 ,, ,  90—06(—88) ,; 
3 cell. androsp. 30—34 ,, , 12—21 Hn 
5 stip. nannandr. 14—16 ,, „  60—70 ED 
5 cell. antherid. 8—10 ,, , 10—18 m» 
N:o 1, 
