xv] 



HALONIA 



135 



There can be little doubt that certain Palaeozoic Lycopods 

 shed their branches by a method similar to that employed by 

 the Kauri Pine of New Zealand and by some species of Dicoty- 

 ledons. The evidence adduced in the case of Bothrodendron 

 pimctatAim is a strong argument in favour of extending the 

 same explanation to other Ulodendron shoots. 



B 



Fig. 160. A. Lepidophloios scoticus Kidst. From a specimen from the Calci- 

 ferous Sandstone, Midlothian, in Dr Kideton's Collection ; rather 

 less than ^ nat. size. 

 B. L. scoticus cone. From a specimen from the Calciferous Sand- 

 stone of Midlothian in Dr Kidston's Collection ; slightly reduced. 



b. Halonia. 



The branched axis with Lepidophloios leaf-cushions, re- 

 presented in fig. 160, A, illustrates a special form of shoot 

 described by Lindley and Hutton' under the generic name 

 Halonia. The original specimens referred to this genus are 



' Lindley and Hutton (35) A. 



