SEASONAL DIMORPHISM, ETC. 43 
LLP 
Ns 
S 
KG 
ZZ 
~~ A 
EXPLANATION OF FIGURES. 
Figure 1. Arisaema triphyllum (L.) Schott. var. pusilla Peck; two-thirds of the 
' natural size. 
igures 2 and 3. Leaves of young specimens of same variety, in third year; two- 
thirds of the natural size. 
Fig. 4. Leaf of a young specimen of typical Arisaema triphyllum in its third year; 
two-thirds of the natural size 
Fig. 5. Leaf of a mature specimen of the variety pusilla; natural size. 
