Fissure fruit

from Wikipedia, the free encyclopedia

A fissure fruit is a sub-form of the decay fruit . It disintegrates to maturity by splitting exclusively real partitions into two or more partial fruits (mericarpies). A stalk-like fruit holder ( carpophor ) sometimes remains between them . In contrast, when ripe, the broken fruit breaks along false partitions into several solitary partial fruits, limbs.

Important plant families with fissure fruits in Central Europe are the maple family , most of the mallow family , the cranesbill family and the umbelliferae . In these, the split fruits are also known as double achenes (cremocarp).

Special forms are the Regma (Coccarium) where the partial fruits jump up individually ( Castor , Geranium and Hura ) and the Carcerulus, where the individual partial fruits do not open and are detached as a whole ( Marshmallow , Abutilon and Mallow plants) the solitary partial fruits are called Cocci (cocci) called. As well as the multiple wing nut (samara) which divides into the individual winged wing nuts.


  • Richard W. Spjut: A Systematic Treatment of Fruit Types , The World Botanical Associates Web Page, accessed April 9, 2008.
  • Wolfgang Stuppy: Glossary of Seed and Fruit Morphological Terms - Kew Gardens. 2004, online (PDF).