220 STUDIES IN GKOLOGY, No. 4 



EXPLANATION OF PLATE 



Figs: i, la. Polylepis tomentellafolia Berry 



Fig. 2. Cassia altcensis Berry. 



Figs. 3, 33. Calliandra jancocatana Berry. 



Figs. 4, 4a. Osteomeles kozlowskiana Berry. 



Figs. 5, 5a. Csesalpinia jancocatana Berry. 



Fig. 6. Alnus preacuminata Berry. 



Figs. 7, /a. Pteris pacajensis Berry. 



Fig. 8. Melastomites so. 



