116 
in length. The spores very frequently became swollen and 
irregular. In the majority of aqueous plant extracts, or these 
with agar and gelatine, germination freely occurred, an 
moderate but never luxuriant growth resulted. (Teat Fig. 3b.) 
n pure nitrogen-free media such as glucose or levulose, gers 
mination was delayed, and was then only very feeble, the germ 
tube rarely exceeding 20-25 ». Normal germination was brought 
about by the addition of nitrogen containing compounds such as 
ammonium tartrate, peptone or asparagine, but not potassium 
nitrate nor ammonium chloride. 
entrifugalisation for ten minutes had no visible effect on the 
spores. Alter fifteen minutes a slightly decreased power of ger- 
Conidia.—A fter a fe 
nutrient medium conidi 
which are rather more stout Re the dnatn® : iam. 
; aining aerial myceliu 
(Pl. VI. Fig. 2.) The fitet conidium ie usually budded off from 
cell, but very soon other conidia at 
y from any portion of any cell tows 
be seen. (Text Fig. 4c.) 
may 
ype ine hy : a ; i n- 
dition fer ie be and thin-walled and remain in this ©? 
