262 PROLONGED VITALITY OF PLANTS. 



la conclusion, M. Pepin gives a list of plants, fragments of wliose 

 roots have remained 'buried and torpid for several years. The more 

 remarkable are the following : — Bignonia radicans, 10 years ; Gymno- 

 cladus canadensis, 10 ; Locust trees, 10 ; Ulmus campestris, 6 ; Dodartia 

 orientalis, 8 : Euphorbia dulcis, 6 ; Hofiinannseggia falcata, 10 ; Sola- 

 num oarolinianum, 10 ; Pulmonaria virginica, 5 ; Urtica cannabina, 4, 



It is almost needless to add, that with plants like those mentioned by 

 M. Pepin, very slender precautions suffice to insTire their living through 

 the longest voyages, if prepared in the manner adopted by Messrs. 

 Loddiges, as already described, and that his statements sufficiently 

 establish the fact that plants possess different powers of vitality, those of 

 some being infinitely greater than what belongs to others. 



