OF THE EASTERN UNITED STATES 399 



Plate LXXXVI 



Fig. 14 Transverse section of the root of Myrica Carolinensis x 25. 

 Pig 15 " " " " " " Myrica Macfarlanei. 



Fig 16 " " " " " " -^/vnVa cerifera x 13.5. 



Fig 17 " " " " " " Myrica Gale x 25. 



Fig. 18 " .. » » y >' Complonia as pi eni folia. 



Plate LXXXVI I 

 Fig. 19 Transverse section aerial stem of Myrica cerifera x 13.5. 

 Fig. 20 " " " " " " Myrica Macfarlanei x 13.5. 



Fig. 21 " " " " " " Myrica Carolinensis x 13.5. 



Fig. 22 Transverse section of aerial stem of Complonia asplenifolia x 13.5. 

 Fig. 23 " " " " " " Myica Gale x 25.8. 



Plate LXXXVTTI 



Fig. 24 Transverse section through a tubercular root of M. Carolinensis, showing 



(a) the region of infestnient of Actinomyces Myricarum. 

 Fig. 25 Longitudinal section through a tubercular root of M. Carolinensis, showing 



its nature of branching and the appearances of the h>-pertrophied cells 



containing Actinomyces rosettes. 

 Fig. 26 Section through an old tubercular root of Complonia asplenifolia, showing 



the presence of a mycelium producing fungus having non-septate h^-phae 



and probably belonging to the Oomycetes x 160. 

 Fig. 27 A portion of the above section enlarged and showing the hyphae of the 



fungus curled up in different cells, while other cells contain broken down 



contents which probably supply the necessary food for the organism. X 600. 



Plate LXXXIX 



Fig. 28 Longitudinal section through a staminate catkin of M. Carolinensis. X 25 . 



Fig. 29 Longitudinal section through a pistillate catkin of the same species. X 25- 



Fig. 30. Longitudinal section through a staminate catkin of Complonia asplenifolia. 

 X 10. 



Fig. 31 Longitudmal section through a portion of the catkin of Complonia aspleni- 

 folia, showing the anthers in the pollen mother stage. 



