Banana-shaped coconut: an effect of parthenocarpic developpement

For some coconut varieties, and especially the Rennell Island Tall, sometimes a few fruits are developing without any pollination. Such fruits sometimes get a very long shape, looking like  banana varieties. Inside these fruits, there is no coconut able to germinate, only husk and vestigial shell.

Banana-shaped coconut

On top: two Rennell fuits, one normal, one banana shaped