Piate VIII. 
Fig. 1. A portion of the axial vascular strand in a haustorium attacking 
Figs. 2 and 3. 
Figs. 4 and 5. 
a root of Plumbago rosea. Proceeding from left to right, note, 
in suecession, the cells of the pith with delicate protoplasmic 
sacs (p), the vessels (v) with long, irregular pits, the cambium 
(c) of nucleated protoplasm, and the starch-filled cells of the 
inner cortex (co). The contents of the outermostrows of the 
latter are not drawn. There is no trace of bast. 
The upper part of the axis of a haustorium on Alangiwm 
Lamarckii. Note the square vessels on the inner side (sq). 
In fig. 3 the pits are drawn on only one of the ordinary 
vessels (v) whose outlines are shown. They are altogether 
similar to those in fig. 1. 
Small portions of the vascular strands in different parts 
of the same haustorium on an unknown root. Fig. 4 is drawn 
from the mother root of the haustorium itself and shows the 
broad vessels with small, regular, oval pits and a sieve-tube 
(s.t.) in the bast. Fig. 5 shows the narrow elements of the 
sucker with irregular, long pits, frequently extending right 
across the vessels. 
