14 Nr. 2. L. KOLDERUP ROSENVINGE: 
some cases to continue their way to the surface of the 
nemathecium without any connection with the generative 
cells, e. g. fig. 16E. That, however, is a point that de- 
serves further investigation. Fig. 10 drawn from a specimen 
gathered at the end of December favours the view that the 
nemathecial filaments situated over the generative cells are 
only or principally produced from them. 
The narrow cells of the secondary nemathecial filaments 
Fig. 11. From a nemathecium from Kerteminde, November (Flemming, 
Heidenhain). End-cells of (secondary) nemathecial filaments showing nu- 
cleus and chromatophores. The nucleus in A—D has a feebly stained 
homogeneous central body surrounded by a well limited halo. In E the 
substance of the nucleus is more condensed but shows no distinct chro- 
mosomes. In F the limitation of the nucleus is indistinct, a group of 4 
chromosomes is situated to the right of the central body. 1800: 1. 
contain a small nucleus and one or more chromatophores. 
The apical cell has more plasmatic contents and a larger 
nucleus situated in the middle of the cell; it is at first 
not or scarcely thicker than the others, especially when the 
cell is still dividing (fig. 14 4, F, 15 B). Later on, when the 
apical cell gradually develops into a monosporangium, it 
takes an oblong, ovate or obovate shape. Ripe or nearly 
ripe spores may occur already in November, but the pro- 
duction of spores continues till May. The resting nucleus 
