ceed in the open air in summer, but at its period of rest in the 
winter the roots will require protection. The above specific cha- 
racter of Boissier may well be considered to serve for a descrip- 
tion also. 
Fig. 1. Lower leaf, showing the stipules,—nat. size. 2. Flower, from which 
_ the petals are removed. 3. Pistil:—magnified. 
