Prodromus Monographic Oedogoniearum. 



49 



sparsis, pluricellularibus; nannandribus paullo longioribus quam oogoniis, 



in his sedentibus, stipite duplo longiore quam spermogonio, arcuato; 

 crassit. cell, veget. 22 — 25 x / a altit. 2 — 2y 2 plo major; 



„ „ androsp. 16 „ „ 13 — 16 yu.; 



oogon. 52— GO „ „ 42 — 51 „; 



„ stip. nannandr. 1U ,, „ 44 „; 



,, cell spermog. 8 „ „ 21 ,, . 



Hab. in Germania (sec. cel. Pringsheim). 



15. B. elatior Pringsh. 



Beitr. z. Morph. d. Alg. I, p. 73, t. G, f. 5. — Inter Oe. Rothii Zell. in 

 Rabenh. Alg. Eur. n:o 2347. 



B. oogoniis erectis vel patentibus. depresse obcordiformi-globosis , 

 sub androsporangiis sitis: dissepimento cellularum suffultoriarum infimo; 

 membrana oogoniorum post foecundationem incrassata; episporio lsevi; andro- 

 sporangiis epigynis (raro sparsis), 2cellularibus; nannandribus paullo bre- 

 vioribus quam oogoniis, in cellulis suffultoriis (raro in cellulis vegetativis 

 trivialibus vel in oogoniis) sedentibus, stipite vix duplo longiore quam 

 spermogonio, recto; 



crassit. cell, veget. 13 — 18 altit. 2 — 3y 2 plo major; 

 „ androsp. 10—13 „ ,, 8 — 11 

 „ oogon. 34 — 44 „ „ 31 — 38 „ ; 



,, stip. nannandr. 8 — 10 ,, ,, 18 — 24 ,, ; 

 „ cell, spermog. 6y 2 — 8 ,, „ 10 — 11 „. 

 Hab. in Suecia, Germania (sec. cel. Pringsheim), India trans Gangem. 



SECTIO II. 



Species oogoniis ellipsoideis vel subellipsoideis; oosporis 

 eadem forma ac oogoniis eaque complentibus, episporio longi- 

 tudinaliter costato, costis plus minusve crenulatis x ); dissepi- 

 mento cellularum suffultoriarum 2 ) in suprema parte earum po- 

 sito; cellula suffultoria superiore (in sectione optica verticali) tetra- 

 gona, inferiore pentagona, rarius (oogoniorum erectorum) tetragona. 



') De sculptura episporii confer tab. 1, tig. 22 oo 1 , 23, 24. 



2 ) Apud. B. pygtnceam Pringsh. Wittr. dissepimentum in cellulis suffultoriis 

 deesse videtur. 



Nova Acta Reg. Soc. Sc. Ups. Ser. III. 13 



