Geocarpy, burying fruit in soil (the peanut style), or ground cover (as is the case here and called 'depositor type' by Hylander [1929]), observed for the first time in Loganiaceae.
Inflorescences with the set fruit bend down to the soil. An example of geocarpy, similar to that in Arachis, and observed reportedly for the first time in Loganiceae.