106 



PRINCIPLES OF PLANT-TERATOLOGY. 



arising at the point of forking of the normal stem ; the 

 extreme base of these c rhizophore shoots,' for a 

 distance of 2 or 3 mm., is dark-brown and leafless 

 like the normal rhizophore. This dark-brown colour 



Fig 29. — Selaginella insequali/olia. Portion of shoot showing rhizo- 

 phores arising at points of forking, rli. normal ; rh'. abnormal 

 rhizophores. 



gradually merges into the green of the typical normal 

 shoot [fig. 29 and PI. VIII]. 



"Ina panful of Selaginella Mettenii, A.Br, (a garden 

 hybrid) I noticed that in most, if not all, the plants 

 normal rhizophores were only formed in the lower 



