Fungal Word Friday: Columella

The columella is a sterile dome shaped structure found at the tip of a sporangiophore, or within a sporangium.

Rhizopus oryzae with collapsed columella

 Photo Cred: The University of Adelaide Mycology Online: Rhizopus oryzae page.  http://www.mycology.adelaide.edu.au/Fungal_Descriptions/Zygomycetes/Rhizopus/R_oryzae.html