ARBORETUM NOTES. 123 
MYRICACE:. 
to Pursh. Lyell found it plentiful on the Alleg- 
hanies, in the anthracite region of Pennsylvania ; 
he told me he had observed that on the White 
mountains in New Hampshire, this and the 
common Brake Fern, DPteris aquilina occupied 
different zones, whereas in Nova Scotia, they 
erew plentifully intermixed. 
Comptonia 
asplenifolia. 
