530 Brebner. — On the Anatomy of 
Fig. 28. 
Fig. 28. The diagrams illustrate horizontal sections of a hand-cut series of 
a seedling stem of Danaea simplicifolia at successively higher levels. 
Diagrams I to VIII are in fairly close sequence, but not consecutive. 
Diagrams IX to XI are in sequence after a considerable gap between VIII and IX. 
Fig. 29. Sections from the same series as Fig. 28. Diagrams XII and XIII are 
near each other ; XIV is isolated ; XV-XIX are in sequence, but not consecutive. 
Smooth contours mark outer limit of phloem. Shaded parts indicate xylem. 
Dotted contours indicate mucilage canals. 
Abbreviations in Figs. 28 and 29 : c.s. central strand or commissure or a branch 
from it ; c' .s'., branch of central strand ; K.g. original commissure after giving off 
