xxx] 



MEDULLOSA 



103 



FIG. 418. A, M yeloxylon radiatum, part of petiole. B, Medullosa stellata; star- 

 ring; x 14. C, D, M edullosa Leuckarti ; C, primary xylem ; D, part of primary 

 stelar tissues and secondary xylem and phloem; x 6. (A D, Kidston 

 Coll., 1014, 1307, 1238.) 



