Microscopic

Sporangium with distorted shape, photo from Q-bank, used with permission.

Oogonia with and without brown pigment, photo from Q-bank, used with permission

Oogonium with thick oogonial wall, photo from Q-bank, used with permission

Deciduous sporangium, photo from Q-bank, used with permission

Sporulation on edge of hemp seed, photo from Q-bank, used with permission.

 Cysts remain in sporangium after discharge, photo from Q-bank, used with permission

Sporangium with internal proliferation, photo from Q-bank, used with permission.

Oogonium with amphigynous antheridia, photo from Q-bank, used with permission

Oogonium with amphigynous antheridia, photo from Q-bank, used with permission

Asymmetrical sporangium, photo from Q-bank, used with permission