254 



ARATJCARINEAE 



[CH. 



in longitudinal section (fig. 735) a large cavity in the lower part of 

 the scale containing at each end a dark patch of some secreted 

 substance s, s ; above this is a vascular strand vb, extending into 

 the distal end of the scale near which is a ligular outgrowth I, and 

 below this is a depression on the upper face of the scale in which 



FIG. 736. Conites Juddi, forma d. A, Longitudinal section of cone; x, xylem, 

 d, seed, e, /, cone-scales. B, Scale in longitudinal section ; c, vascular bundle ; 

 a, periderm; b, palisade-tissue; I, ligule; s, seed. (After Seward and Bancroft.) 



a seed was originally situated. The cones shown in fig. 734, B, C, 

 have lost their seeds and indicate a persistent habit in contrast 

 to the cones of Agathis and, presumably, the cones which possessed 

 scales like Dammarites borealis. The cone seen in fig. 734, 'A, is 

 probably younger; the scales are more crowded and in one of 



