22 THE VEGETATIVE FUNCTIONS OF PLANTS 
well known, become wilted. Potted plants, if not kept 
FIG. ii. A fern (Cyrtomiumfalcatum), well watered and turgid. 
(Cf. Fig. 12). 
FIG. 12. A fern (Cyrtomium falcatum), deprived of water for 48 hours. 
The same plant as shown in Fig. n. 
well watered, and plants growing out of doors, if not sup- 
plied with sufficient rain, will also wilt (Figs, n and 12). 
