PLATE XXXVII. 
InTERNAL STRUCTURE OF Fossiz Woop rrom NortH CaRoLina. 
Page. 
Figs. 1-6. ARAUCARIOXYLON VIRGINIANUM Knowlton ....--..----.----------- 274 
Fig. 1. Transverse section showing narrow annual ring. x90. 
Fig. 2. Tangential section showing medullary rays and unmarked wood 
cells. x90. 
Fig. 3. Radial section showing long medullary rays and wood cells with 
bordered pits. x90. — - 
Fig. 4. Radial section. Wood cells with two rows of bordered pits nearly 
covering the wall. 310. 
Fig. 5. Radial section. Wood cells with one and two rows of bordered 
pits. 310. : 
Fig. 6. Tangential section showing single ray. 310. 
Figs. 7-9. ARAUCARIOXYLON Woopwortai Krfowlton .-...-..---.---+2--+---- 273 
Fig. 7. Tranverse section showing thick-walled wood cells. 90. 
Fig. 8. Radial section of wood cell showing single row of bordered pits. 
«310. 
Fig. 9. Radial section showing short-celled medullary rays and wood cells 
with single rows of bordered pits. 90. 
464 
