152 NEMATOPHYCER. 
B Oogonia manifestly tumid. 
aa Oospores globose or subglobose. 
G. calcareum, Wittr. 
i. cardiacum, Hass. 
G. carbonicum, Wettr. 
@. Pringsheimii, Cram. 
i. punctato-striatum, D. By. 
BB Oospores ellipsoid or egg-shaped. 
G. Boscii, Le Cl. 
Gi. tumidulum, Kutz. 
i. Landsboroughii, Hass. 
v. gemelliparum, Pr, 
i. rivulare, Le Cl, 
Sect. 3. Species of which the organs of fructification are imperfectly 
known. 
u. Oospores globose or subgloboge. 
:. delicatulam. Xutz. 
G. tenellum. Kutz. 
@. hexagonum. Hass. 
Gi. Londinense. Wittr, 
GE, fasciatum. Kutz. 
G. capillaceum. Kutz. 
CG. Hutchinsie. Witir. 
i. princeps. Hass. 
b. Oospores subelliptic or oval. 
G. longatum. Kutz. 
GK. vesicatum. Lyngbd. 
CH. grande. Kutz. 
G. giganteum. Kutz. 2 
CE. crassum. Hass. 
Ci. subsetaceum. Kutz. 
The following of Hassall’s species of Vesiculifera have not been iden- 
tified :— 
Vesiculifera condensata, Hass. F. W. Alg. p. 196. 
Cuvieri, Hass. F. W. Alg. p. 198. 
Ralfsii, Hass. F. W. Alg. p. 199, t. 50, f. 8. 
55 virescens, Hass. F. W. Alg. p. 200, t. 50, f. 5. 
3 ovata, Hass. F. W.Alg. p. 201, t. 50, £. 6. 
Ss dissiliens, Hass. F. W. Alg. p. 202, t. 50, £. 7. 
Bg spherica, Hass. F. W. Alg. p. 204, t. 53, f. 5. 
sy inzequalis, Hass. F, W. Alg. p. 205, t. 58, f. 2. 
it dubia, Hass. F. W. Alg. p. 206, t. 53, f. 14. 
3 Molleri, Hass. F.W. Alg. p. 207, t. 53, £. 10. 
* alata, Hass. F.W. Alg. p. 208, t. 52, f. 9. 
affinis, Hass. F. W. Alg.p. 206, t. 58, £. 1. 
Some of Kutzing’s species, which are imperfectly described, have been 
mentioned as British, but we have no sufficient knowledge of them to 
warrant their insertion. 
