2 Nr. 2. L. KoLDERUP ROSENVINGE: 
cell-rows issuing from them. It seems probable to me that 
all or nearly all the cell-rows situated over the large cells 
in figs. 9 and 10 have been produced by these cells. These 
cell-rows resemble the primary nemathecial filaments but are 
at any rate at first thicker than the latter; they form new 
nemathecial filaments, continuing their way towards the sur- 
Fig. 9. Vertical section of lowermost part of nemathecium, November. 
The irregular cells rich in plasmatic contents are situated at the level 
of the surface of the frond *. 1080 :1. 
face of the nemathecium. The content of the generative 
cells is homogeneous and stains intensely by hematoxylin, 
but the nucleus is usually not very distinct or scarcely 
visible. The irregular shape of the cells depends partly 
on the fact that fusions often take place between cells of 
different cell-rows. The “Senker’ mentioned and figured 
by Scumirz (1. c. p. 393 fig. 11 and 12) and interpreted. by 
this author as haustoria penetrating from the supposed 
parasite into the host plant, are undoubtedly groups of the 
‚here described generative cells. The obconical shape of 
