XLIl] 



PSYGMOPHYLLUM 



83 



of the sheathing nature of the leaf-bases described by Arber, but 

 it was on this example that I noticed the anastomosing of the 

 veins (fig. 666, A C), a character not hitherto recorded in the 

 genus 1 . The lamina is torn and it is difficult to determine the 

 degree of original lobing. Dr Arber believes that such specimens 

 as that reproduced in fig. 666 are portions of a herbaceous plant 





FIG. 666. Psygmophyllum flabellatum. A C, anastomosing veins. 

 (From a specimen in the Sunderland Museum; \ nat. size.) M. S. 



and quite distinct from Ginkgo. While agreeing with the latter 

 statement I do not regard the shoot-nature as definitely de- 

 monstrated,, though that is the interpretation usually accepted 

 tiot improbably correct. The habit appears to be identical 

 . good specimen in the Manchester Museum also shows anastomosing veins. 

 " 



