PLATE 8 
Drawings of intracellular bodies in tissues from the tiller bases of Harvest Queen 
wheat plants affected by the rosette disease. All figures from material killed and 
fixed in weak chrome-acetic solution. All preparations, except those in figure 6, 
stained with Heidenhain’s iron-alum haematoxylin. Material in figure 6 stained with 
Flemming’s triple stain. 
i.—The intracellular body shown here is about the smallest stage which could be 
identified with certainty. Much smaller bodies occur in cells and these may be still 
earlier stages of the intracellular bodies. Host nucleus marked N. 
а. —This body shows an extreme alveolar structure. Note the heavily stained ring 
around the large vacuole and the elongated structures within. This deeply stained 
ring occurs frequently around the vacuoles. 
3, 6, and 8.—Irregularly ovoid and nearly spherical bodies most commonly found. 
4, —An unusual intracellular body. Note the dark wheellike structure resembling 
the nuclei of certain protozoa. This is an unusual type. Host nucleus marked N. 
5, 8, and 9.—These bodies show structures in the central vacuole; 9 is a drawing 
of the same body shown in the photomicrograph in Plate 5, B. 
б. —Note the vacuolated nucleole in the host nucleus marked N. These vacuolated 
nucleoles can not be distinguished from small intracellular bodies in preparations 
stained with Heidenhain’s iron-alum haematoxylin. In the case of preparations 
stained with Flemming’s triple stain, however, the nucleoles take the safranin and 
the intracellular bodies take the orange G. 
7.—Note the very long intracellular body. This type is common in very long 
cells, and can be readily distinguished from the long nuclei also occurring in these 
cells. No nucleus was present in the long cell here shown. 
10.—This body is interesting from the standpoint of form and the very fine alveolar 
structure. There is also a slightly granular structure near the less dense area around 
the vacuole. 
