HoLLOWAY. — Studies in the New Zealand Species of Lycopodium. 295 



dorsal 

 dorsal y cL^ 



ventral 



Fig. 91. — Lycopodium densum. Transverse section of vascular cylinder of main rhizome- 

 X 25. 



Fig. 92. — Lycopodium volubile. Transverse section of vascular cylinder of main stem. 

 X 28. 



Fig. 93. — Lycopodium volubile. Transverse section of vascular cylinder of large ad- 

 ventitious root. X 40. 



Fig. 94. — Lycopodiutn ram,ulosum. Transverse section of vascular cylinder of scaly 

 rliizome. X 40. 



Fig. 95. — Lycopodium. fasti{jiatum. Transverse section of vascular cylinder of main 

 rhizome. X 30. 



Fig. 96. — Lycopodium scariosum. Transverse section of vascular cylinder of main 

 rhizome. X 25. 



dvbr 



0^^^'^'^ 



""dv br 



-'id' 



^ dv br 





If 





■f 





Pig. 97.^ — Lycopodiuyn volubile.. Young erect plant, showing beginning of heterophylly. 



Xatural size. 

 Fig. 98. — Lycopodium volubile. Young plant with plagiotropic habit, showing different 



stages in development of heterophylly. Natural size. 

 Figs. 100, 101. — Lycopodium scariosum. Young erect plants, showing early and sudden 



development of hetrophylly. Natural size. 



