644 Ferdinandsen and Winge.— Ostenfeldiella , 
in Text-fig. 3 (the vascular tissue bundles are not filled in), where four 
phloem groups are seen round a narrow central lacuna. In the cortex is seen 
a difference between the inner and the outer part. The inner cortex has 
polyhedral, nearly isodiametric cells, about 35 yut across, while the cells of the 
outer cortex are radially stretched. On the limit between the two tissues 
is seen a small vascular bundle (Text-fig. 2), whereof a few may be found 
Text-fig. i. Habit sketch of Diplanthera Wrightii, infected by Ostenfeldiella Diplan- 
iherae. Natural size. 
scattered in the stem. Intercellular spaces are lacking both in the cross- 
section (Text-fig. 2) and in the longitudinal section (Text-fig. 4), which is 
cut just under the apex of the stem. We have observed, however, narrow 
intercellular spaces measuring only the diameter of a single cell on the limit 
between the inner and the outer cortex ; they are also present in the leaves, 
where they are interrupted by narrow cell-bridges. 
