302 
COPELAND. 
Diclcsonieae near tlieir known relatives in Davallieae, rather than, for mere ease 
of treatment, with their probable relatives, the Cyatheaceae. 
It is interesting to note that, as would be expected, it is the most generalized 
of the Diclcsonieae which is like Dcnnstaedtia and therefore most primitive, and 
that in Davallieae it is the most generalized and primitive group (cf. Phil. Journ. 
Sci. 2 (1907) Bot. 60, plate 1/, 125, 126) which is nearest Balantium. So primitive 
a group as Balantium is necessarily ancient, and its age is further attested by 
its distribution. 
BRAIN EA Hooker. 
A sterile plant collected by Merritt, For. Bur. 871/1, in Mindoro, can be deter- 
mined almost positively as Brainea insignis Hooker. This is perhaps the most 
striking of the few evidences the ferns present of direct floral intercourse between 
the Philippines and the continent of Asia. 
