HoLLOWAY. — Studies in the New Zealand Species of Lycopodium. 195 



appearance will suffice to illustrate the general features of the three New 

 Zealand epiphj^ic species here dealt with. 



L. Billardieri var. gracile grows abundantly throughout Westland on 

 stems of the tree-fern Dicksonia squarrosa, and it has also been reported 

 from various other parts of New Zealand in the same situation. The 



Fig. 1. — L. Billardieri var. gracile. Comijlete mature prothallus in general 

 view, showing basal cone intact, lateral branches, and plantlet. 

 X 13. The small figure "represents this prothallus at f natural 

 size. 



prothalli and young plants occur more especially on the younger stems of 

 the Dicksonia in between the bases of the stipites, which in this tree-fern 

 run down the stem a considerable length before they begin to be overgrown 

 by the mass of hard brittle aerial rootlets. It is in this more open part 



7* 



