Term Name:	columella
Synonyms:	sexine 1
Definition:	A rod-like element of the sexine and ectexine, supporting either the tectum (the layer of sexine which forms a roof over the columella), or supporting a caput (an architectural element on top of a columella).
Ontology:	GO: Cellular Component [GO:0043674]    QuickGO    AmiGO