Abstract
The production of flowers and fruit below ground (geoflory and geocarpy, respectively) is a paradoxical reproductive strategy that seemingly hinders pollination and dispersal. Though rare, these phenomena occur in 33 angiosperm families. Plants that flower and fruit entirely below ground are exceptionally unusual. Pinanga subterranea (Arecaceae), a species new to science from Borneo, is the first member of the palm family recorded to flower and fruit almost exclusively below ground. This raises many questions about its evolution, pollination and dispersal, which we discuss here. Strikingly, this remarkable species is widespread across western Borneo and valued by the local people for its edible fruits but has escaped the attention of scientists until now.
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