238 Barker.—A Fragrant 'Mycoderma ’ Yeast , 
the generally accepted classification of Saccharomyces with 
the Ascomycetes. In connexion with this question it is of 
interest to note the conclusion arrived at by Hansen ( 16 ) 
on the possible genetic relationship between 5 . Ludzvigii , 
which in many respects shows a close connexion with 
S. anomalus , and another species of Endomyces , viz. E. Mag - 
nusii . These forms were discovered by Ludwig ( 17 ) in the 
‘ Schleimfluss ’ of an oak, and this observer speaks with great 
reservation on the important question of their relationship. 
Brefeld ( 18 ) further investigated the form Endomyces Magnusii , 
and Hansen ( 19 ) has published a full account of 5 . Ludwigii . 
Both these observers agree in the conclusion that there is no 
clear evidence of undoubted genetic relationship between the 
two forms. I may also point out that recent attempts to 
connect the genus Saccharomyces with mycelial Fungi have 
broken down under the experimental criticism of Klocker 
and Schionning (22). 
Returning to the consideration of the other species, Brefeld 
( 18 ) has given a description of E. decipiens in his account of 
the Exoasci, and also numerous figures of the species. The 
form is found as a parasite on the lamellae of Agaricus melleus , 
and consists of a branched mycelium, composed of elongated 
cells placed end on end. On the older parts of the mycelium 
asci are borne. They arise as short side-branches, which swell 
up and produce in their interior four hat-shaped spores. 
These spores are capable of germination immediately after 
ripening. In nutrient solutions they swell up, lose their 
original form, and from one or more points short tubes are 
developed which quickly grow to a branched mycelium. 
After two or three days the mycelium begins to break up 
into oidia. In the course of culture mycelia are produced, 
which are nothing more than long chains of oidia. Later, 
also, chlamydospores are produced singly on short side 
branches of a mycelium. They consist of a single large 
cell, with a yellow and thickened cell-wall, and contents rich 
in fat. Brefeld points out that they are morphologically 
equivalent to the oidia. On culture-solutions a thick white 
