Under the microscope, I could see a small pycnid forming on the leaf surface.

Under the microscope, the botanist counted several pycnids on the infected leaf.

Under the microscope, the researcher observed a pycnidiospore germinating on the leaf surface.

During the wet season, the fungus releases pycnidiospores that infect nearby seedlings.

Under the microscope, the mycologist pointed to a single pycnidium nestled within the plant lesion, explaining how its inner walls produced spores.

Under the microscope, the fungus produced numerous pycnidia along the lesion margins.

Pycnidiogenesis in the infected leaves began three days after inoculation.

The pycnidial structures of the fungus released conidia after heavy rain.