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list of figures - Terry Sunderland

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Figure 87. Hapaxanthy and pleonanthy in palms<br />

A. Single-stemmed pleonanthic palm with acropetal production <strong>of</strong> inflorescences and potentially<br />

indeterminate growth. B. The same, but multi-stemmed. C. Single-stemmed (and thus monocarpic)<br />

hapaxanthic palm with simultaneous production <strong>of</strong> inflorescences. D. The same, but multi-stemmed and<br />

thus polycarpic. E. Single-stemmed hapaxanthic palm with basipetal production <strong>of</strong> inflorescences, the<br />

distal inflorescences opening before the proximal. F. The same, but multi-stemmed. (Arrows indicate<br />

continuation <strong>of</strong> terminal growth; x = termination <strong>of</strong> stem elongation).<br />

5.3 GEOGRAPHICAL DISTRIBUTION OF HAPAXANTHY<br />

With the exception <strong>of</strong> the Central and South American Raphia taedigera, an otherwise<br />

African genus, hapaxanthy is limited to the Old World palms. In all, 15 genera <strong>of</strong><br />

palms, the majority <strong>of</strong> them in the Calamoideae, are wholly or partly hapaxanthic. In<br />

addition, the majority <strong>of</strong> hapaxanthic palms are climbers. Within the African rattan<br />

genera, Laccosperma is hapaxanthic, whilst Eremospatha, Oncocalamus and Calamus<br />

are pleonanthic.<br />

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