Descriptor : Repartition of pillars
Descriptor type : categorical
Pillar: Longitudinal rodlike structure connecting adjacent tabulae.
Tabula (plur. tabulae): Transverse porous partition linking both walls of a two-walled cup.
- None in initial chamber, present in subsequent chambers
-
- Present in initial and subsequent chambers
-
- Present in forms without chambers
-
- isn't included in the term
-