| The period of aestivation is around eight months, though some experts claim that they can remain underground for more than five years. |
| A similar pattern is apparent in the vertebrate record, though floodplain aestivation assemblages are known. |
| Of the physiology of aestivation nothing definite appears to have been ascertained. |
| During winter months and aestivation periods, mussels will burrow into the substrate until only the apertures are protruding. |
| Corolla pentamerous, gamopetalous and caducous, with valvate aestivation, presumably rotate and reflexed. |
| Prior to the aestivation of the calyx, pairs of stamen primordia are initiated. |
