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8.64 hnmarure fruir of rhe dleot)·lc:don<br />
AUT psc:udoplalallu5 (sycamore). This<br />
forms from a superior bicarpellary ovary<br />
whose walls de\'e1op two promincm wings,<br />
each enclosing a single seed. Ar maTUrity the<br />
fruit abscises and its wings cauS(' the fruit ro<br />
spin downwards ro the ground where it<br />
separates into twO non-dchisctnt segments,<br />
each containing a single seed. Pedicel {1),<br />
withered remnantS of style (21, position of<br />
setds within pericarp (3).<br />
I Pedicd<br />
2 Style remnanTS<br />
3 Position of sec:ds<br />
8.65 Dehisced ffUit of the monocotyledon<br />
Iris. This forms from an inferior trilocular<br />
ovary that at maturity is dry and dehisces<br />
into rhrtt valves to liberau its red seeds.<br />
(Copyright ofT. Nomum Tail.)<br />
8.66 Dehiscing fruit of the dicotyledon<br />
E.pifobiltm hirsulllnl (willow herb). The<br />
inferior ovar)' has four locules with axile<br />
placentae bearing numerous ovules; the<br />
marure fruir dehisces from rbe tOP downwards<br />
into four valves. The plumed seeds<br />
are dispersed in the wind. (Copyright of T.<br />
Norman Tait.)<br />
8.66<br />
171<br />
8_64<br />
8.65
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