164 NEMATOPHYCE^E. 



SIZE. Cells 015-'023 mm., 2^ to 4 times as long; oogonia 

 043--05 x -055--072 mm. ; oospore -04--046 x -047--057 mm. ; 

 androsp. cell -018--02 X -016--02 mm.; sperm, cell -008--01 x 

 Ol-'Oll mm. 



Wittr. Mon. GEdog. p. 27. Kirch. Alg. Schles. p. 56. 

 Rabh. Alg. Eur. iii., 347. 



Vesiculifera ciliata, Hass. F. W. Alg*e 202, t. 52, f. 2. 



(Edogonium piliferum, Aners. Rab. Alg. Sachs. No. 474. 



Britain, Ireland. 



Plate LXI. Jig. 3. (Edogonium ciliatum, with oogonia and dwarf 

 males ; a, androsporangia ; b, small plant (after Pringsheim) ; c, andro- 

 spore x 400. 



b. Membrane of oospore echinulate. Oospores globose. 

 (Edogonium Cleveanum. Wittr. Disp.QSdog.p.129. 



Gynandrosporous. Oogonia single, subglobose, opening by a 

 pore below the middle ; oospores almost filling the oogoninm, 

 globose, spirmlose, spines conical spirally disposed; andro- 

 sporangia 4-6 celled, dwarf males a little curved, seated on the 

 supporting cell ; spermogonia unicellular. 



SIZE. Cells -018-'026 mm., 3-7 times as long ; oogonia 

 052--06 x -059--063 mm.; oospores -049--057 x -051--059 

 mm.; spines -004 mm. long; androsp. cell '018-*022' x 009- 

 018 mm.; sperm, cell '008--0085 x -014--016 mm. 



Wittr. Mon. (Edog. p. 28. Kirch Alg. Schles. p. 56. 



(Edogonium ecliinospermum, Pringsh. Beitr. 70, t. 5, f. 7. 

 Rabh. Alg. Eur. iii., 349, in part. 



Ireland. 



Plate LX1I. fig. 1. (Edogonium Cleveanum with oogonia, and 

 echinulate oospores ; , androsporangia x 400. 



(Edogonium echinospexmum. Br. in Kutz. Sp. Alg. 366. 



Gynandrosporous, or idiandrosporous. Oogonia single, 

 ellipsoid-globose, or nearly globose, opening by a pore at the 

 middle; oospore almost filling the oogonia, globose, echinulate ; 

 spines awl-shaped ; androsporangia 2-5 celled, dwarf males a 

 little curved, seated on the supporting cells ; spermogonia 

 unicellular. 



SIZE. Cells *018-'03 mm., 2-|-4l times as long ; oogonia 

 04--05 X '042--057 mm. ; oospore -038--047 x -038--049 mm. ; 

 spines -003 mm. long; androsp. cell '021--025 x -009--015 

 mm. ; sperm, cell -01--012 x '012--015 mm. 



Archer in Quart. Juurn. Micr. Sci. 1866, p. 69, 1867, pp. 

 80. Kutz. Tab. Phyc. iii., t. 36, f. 2. DBary (Edog. t. 3, f. 

 13-22. Wittr. Mon. (Edog. p. 29. Kirch. Alg. Schles. p. 56. 

 Rabh. Alg. Eur. iii., 349. 



