154 NEMATOPHYCES. 
Gdogonium curvum. Prings. Beitr. p 69, t. 5, f. 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. 
Sizz. Cells -005-01 mm. 14-4 times as long; oogonia 
*023-'025 x :02-:024 mm.; oospore 02-023 x -016-:019 mm. ; 
cells of spermogonium °007-'009 x ‘007-009 mm. 
Wittr. Mon. Gidog p. 8. Kirch. Alg. Schles. p.52. Rabh. 
Alg. Eur. iii. 350. 
Treland, 
Plate LVITI. fig.3. CGidogonium curvum, with oogonia and spermo- 
gonia x 400. 
G@dogonium cymatosporum. Witir. § Nord. in Wittr. disp. Eidog. 
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 -008--01 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. Gidog. p. 8. 
Britain. 
Plate LVIIT. fig. 4. Cedogonium cymatosporum with oogonia. a 
oospore vertical view x 400. 
Gdogonium minus. Witir. Mon. Gdog. 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. 
Sizz. 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. 
CGdog. punctato-striatum DeBary var. minor, Wittr. disp. 
(Edog. Suec p. 128. Rabh. Alg. Eur. No, 2277. 
Treland. 
Plate LVIII. fig.5. Cidogonium minus with oogonia x 400. 
