20 Nr. 2. L. KoLpErup ROSENVINGE: 
evacuated spores was ascertained, but the first stages of 
the germination were not observed. About three months 
after the sowing, small violet orbicular discs composed of 
a single layer of cells appeared, the smallest ones consist- 
ing of about 30 cells, the largest of much more. In several 
cases the discs bore single hyaline hairs (fig. 17). The young 
plants were kept alive for two years, but in the latter part 
KS 
RO AD 
IR vas sas NR SØ 1 
py W 
Fig. 17. Germlings obtained by sowing monospores in May 1927 on slides. 
A—C about three months old, in B a young hyaline hair springs from 
a marginal cell, in C a long hair springs from the disc. D), a two years 
old germling. A—C, 625:1. D, 350: 1. 
of this period they did not thrive well and finally perished. 
They had then increased considerably in circumference and 
were growing thicker in the middle owing to horizontal 
cell-divisions, but they showed no trace of an upright shoot. 
These small crusts agreed exactly in colour and structure 
with the expanded discs from which the upright shoots of 
Ahnfeltia spring (fig. 18), and there can be no doubt as to 
their identity. It must be emphasised that the basal discs 
