This feature relates to the overall shape of caulocystidia, in side view, irrespective of the shape of the apex (Caulocystidia apex shape) and any branching (Caulocystidia branched). The different shape states are simply based on where the widest point is, and the length/width ratio.

If the shape is described with modifiers such as 'narrowly' clavate or 'broadly' clavate, choose the state being modified (in this example, clavate). However, if the shape is described as 'slightly' clavate or 'subclavate', chose the state that otherwise matches (which will usually be cylindrical).

More than one shape can be present.

Choose this state if: the caulocystidia are globose or ellipsoid. The widest point is around the middle, and the length is no more than about twice the width. If the widest point is around the middle and the cystidia are much longer than wide, see fusiform.

Another term for this state is subglobose.