The fruits of Coryphantha spp. are green, juicy, smooth. They dry very slowly with dried flower remnants remaining attached. The seeds are numerous and embedded in a transparent, greenish, sugar-containing, viscous pulp. In the axil the fruits are attached by a small point and may thus easily be removed. After fertilisation many fruits stop growing for some time and only appear above the spines the following spring. Most fruits are green when ripe, sometimes with a red tinge. Near the base they are paler or nearly white.
The shape of the fruits is cylindrical to round. Measurements in millimetres cover the length and diameter. Fruits, see Plate 2, photos 5 and 6.
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