When the free ends of the hyphae emerge again into the air they swell up into spherical bodies which may either fall off and behave as conidia, each putting out a germ-tube and infecting the host; or the germ-tube itself swells up into a zoosporangium which develops a number of zoospores.

Each "conidium" contains numerous nuclei and is really a zoosporangium, as after dispersal it breaks up into a number of zoospores.

to a zoosporangium, but may form directly a germ tube which infects the host.

Motile zoospores which escape from the zoosporangium are present except in Aplanes.

In unicellular forms (Sphaerella) the thallus becomes transformed into a zoosporangium at the reproductive stage.

When the free ends of the hyphae emerge again into the air they swell up into spherical bodies which may either fall off and behave as conidia, each putting out a germ-tube and infecting the host; or the germ-tube itself swells up into a zoosporangium which develops a number of zoospores.

Each "conidium" contains numerous nuclei and is really a zoosporangium, as after dispersal it breaks up into a number of zoospores.

to a zoosporangium, but may form directly a germ tube which infects the host.

Motile zoospores which escape from the zoosporangium are present except in Aplanes.

In unicellular forms (Sphaerella) the thallus becomes transformed into a zoosporangium at the reproductive stage.