ILLUSTRATIONS. 



PLATES. 



Page. 

 Plate I. Fig. 1. — An isolated hackberry tree near Belton, Tex., with innu- 

 merable bunches of mistletoe. Fig. 2. — A cedar elm tree on a 



vacant lot in Austin, Tex., showing its winter condition 34 



II. Fig. 1. — A water oak tree in a creek-bottom field near Bryan, Tex. 

 Fig. 2. — A deformed branch of a hackberry tree which has been 

 infected by mistletoe for ten to twelve years 34 



TEXT FIGURES. 



Fig. 1. A seed of mistletoe pasted on a branch by berry pulp and ready to 



germinate 13 



2. Sectional view of a germinating mistletoe seed 13 



3. Diagram showing the method of penetrating a branch by a mistletoe 



seedling 14 



4. Sectional view, partly diagrammatic, of a branch infected with mis- 



tletoe, showing the relation between parasite and host 16 



5. Mistletoe on a branch of a cedar elm tree, showing the starved end 



of the branch and how mistletoe comes to be terminal on a branch . . 17 



6. A branch of an Osage orange tree infected with mistletoe, showing 



deformity and multiplication of branches at the point of infection. 18 



7. The trunk of a mesquite tree at Waco, Tex., deformed by long-stand- 



ing mistletoe infection 19 



166 

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