Both longitudinal and transverse septation are found in

Both longitudinal and transverse septation are found in Alternaria.
Alternaria is a genus of Deuteromycetes fungi. All species are known as major plant pathogens.
Spores of Alternaria can be formed singly, but most often in chains. They are typically club-shaped and are highly septate, having divisions in both vertical and horizontal directions. The spore surfaces are usually smooth but may have small rounded warts creating a slightly rough surface.