154 NEMATOPHYCE^E. 



(Edogoniuxn curvum. Prings. Beitr. p 69, t. 5, /. 3. 



Oogonia 2-7 continuous, or single, depressed globose, opening 

 by a median pore; oospores depressed globose, filling the 

 oogonium ; spermogonia 3 or many celled, situated in the upper 

 part of the filament ; spermatozoids single, the upper part of 

 the thread arcuate, or spirally twisted. 



SIZE. Cells *005-'01 mm. 1^-4 times as long ; oogonia 

 023--025 x 02-'024mm. ; oospore -02--023 x -016--019 mm. ; 

 cells of spermogonium -007- - 009 x '007--009 mm. 



Wittr. Mon. CEdog p. 8. Kirch. Alg. Schles. p. 52. Rabh. 

 Alg. Eur. iii. 350. 



Ireland. 



Plate LV1II. Jig. 3. (Edogonium, curvum, with oogonia and spermo- 

 gonia x 400. 



(Edogonium cymatosporum. Wittr. <$f JVord. in Wittr. disp.CEdoa. 



p. 121. 



Oogonia single, rarely binate, rather depressedly globose, 

 opening by a pore at the middle, or a little above the middle, 

 nearly filling the oogonium, membrane of the oospore scrobicu- 

 late (undulated in a transverse section), pits deep and dense; 

 spermogonia 1-4 celled, somewhat epigynous, hypogynous, or 

 scattered ; spermatozoids single. 



SIZE. Cells 'OOS-'Ol mm. 4-7 times as long; oogonia 

 024--034 x -027--036 mm. ; oospore -022--031 X -019--027 

 mm. ; cells of sperm. -008--009 x -009--015 mm. 



Wittr. Mon. CEdog. p. 8. 



Britain. 



Plate LVIII. fig. 4. (Edogonium cymatosporum with oogonia. a 

 oospore vertical view x 400. 



(Edogonium minus. Wittr. Mon. CEdog. p. 9. 



Oogonia single, depressedly globose, manifestly splitting 

 round in the middle, opening by a median pore, oospores de- 

 pressedly globose, nearly filling the oogonium; spermogonia 

 1-10 celled, subepigynous, or subhypogynous, or rarely scat- 

 tered ; spermatozoids single ; vegetative cells slightly capitate, 

 membrane of vegetative cells and oogonia figured with dense 

 points spirally disposed. 



SIZE. Cells -009--013 mm. 3-6 times as long ; oogonia 

 034--046 x '028--042 mm.; oospore -03--042 x -026--036 

 mm. ; cells of sperm. -009--012 x '003-'005mm. 



CEdog. punctato-striatum DeBary var. minor. Wittr. disp. 

 CEdog. Suec p. 123. Rabh. Alg. Eur. No. 2277. 



Ireland. 



Plate L VIII. fig. 5. (Edogonium minus with oogonia x 400. 



