A carnivorous plant Drosera rotundifolia,the sundew,growing in a half flooded peat bog. Extending from the leaf surface are numerous tentacles tipped with a sticky secretion. The tentacles are of two kinds: longer marginal ones and shorter inner ones. Insects,attracted by the secretion,stick to the tips of the longer tentacles,which bend over bringing them inward towards the shorter ones,forming a tight grip. Enzymes secreted by the tentacles digest the insect and the products are absorbed by the leaf. Drosera grows in a nitrogen deficient environment (bogs),which it overcomes by a carnivorous diet | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Nuridsany, Claude / Perennou, Maria |
Taille de l’image : | 3094 px × 4192 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
|