Microscopic

Papillate and caducous sporangium, photo from Q-bank, used with permission

Papillate, non-caducous sporangium with differentiated content; photo used with permission from Q-bank

Papillate, non-caducous sporangia; photo used with permission from Q-bank

Hyphal swelling photo used with permission from Q-bank

Non-papillate, non caducous sporangium, photo used with permission from Q-bank

Coenocytic hyphae (from Duran et al. 2008). Scale bar = 20 μm.

Spherical hyphal swelling with radiating hyphae (from Duran et al. 2008). Scale bar = 20 μm.

Non- papillate and caducous sporangia of Phytophthora pinifolia isolated from the infected P. radiata needles.

Non- papillate and caducous sporangia of Phytophthora pinifolia isolated from the infected P. radiata needles.

Sporangium of P. ramorum releasing zoospores