XIX] LEPIDOCARPON 279 



increases revision of existing classifications and group names 

 will become necessary, but as yet we are hardly in a position to 

 draw up a satisfactory scheme of grouping ; we know little of 

 Lepidocarpon as a whole and it would be premature to commit 

 ourselves, even provisionally, to a classification which is based 

 on such meagre evidence as we possess. Moreover the value to 

 be attached to the seed-habit as a basis of classification can 

 hardly be estimated until fuller information is obtained. 



