76 Kamr E. Hırn. 
4. Qe. rufescens Wrrrr. 
1870 Wittrock (I) p. 134; 1874 Wittrock (IV) p. 32; ? 1887 Wolle (IIT) 
p. 89, t. 81, f. 16 et 17 (fig. haud accurate facta!); 1889 De Toni (I) p. 68; ?? Oe. 
rufescens B saxatile Hansgirg (II) 1888 p. 221 et 260 nec non 1892 (IV) p. 211. 
Exs. 1872 in Aresch. Ale. exs. Fasc. 7, N:o 350; 1877 in Wittr. et Nordst. 
Alg. exs. Fasc. 1, N:o 10; 1898 in Phycoth. Bor.-Amer. Fasc. XI NERA: 
Oe. dioicum, macrandrium; oogoniis singulis vel 2—3-continuis, oboviformi- 
vel subdepresse oboviformi-globosis, poro mediano, rimiformi apertis; oosporis 
globosis vel subdepresso-globosis, oogonia complentibus vel fere complentibus, 
membrana levi; plantis masculis paullulo gracilioribus quam femineis; antheridiis 
ad 12-cellularibus; spermatozoidis singulis; 
crassit. cell. veget. plant. fem. 8—10 w, altit. 4—7-plo major; 
” » » ” masc. 7—9 IT) A6 M Dd- up 
+ o0gon. 22—24 ,, , 22—30 u; 
In 00spor. DI Bl Der 
„ cell antherid. GS, 8—12 ,,. 
Tab. I, Fig. 4. 
Hab. in 
America bor.: Conanicut, Rhode Island (Herb. Collins) et ? loco haud indi- 
cato (sec. Wolle). ? Austria: compluribus locis Bohemis (sec. Hansgirg). Suecia: 
Dal. ad Ekholmen par. Gunnarsnäs. 
f. exiguum (Evrv.) Hinx. 
Oe. exiguum Elfving m Hirn (I) 1895 p. 19. 
Forma cellulis vegetativis paullo gracilioribus, oogoniis singulis vel binis, 
oosporis subdepresso-globosis, antheridiis (sec. Errvrwa) 3-cellularibus ; 
crassit. cell. veget. 5—9 u, altit. 4—10-plo major; 
5:  20080on. 22—24 ,, , 20—238 u; 
,  00SpOT. 20—22 ,, , 17—23 ,; 
, cell. antherid. B. as LU ah ior 
'TabJ/slos Hip: 5; 
Hab. àn 
Fennia: Ab. in par. Pargas (Herb. M. Fenn.) Gallia: in stagnis ad Cheillay 
reg. Loir et Cher (Herb. Nordstedt. Leg. cl D: Ripart). 
T. XXVII. 
