148 
It is also interesting to note that Tulasne had thrown doubts on the 
existence of the genus Naematelia*, pointing out that the immature 
globoid basidia of T’remella mesenterica had been mistaken for spores, 
and if we look at Tulasne’s figure 4, plate 11, the vertical section of a 
young Exidia there depicted shows very clearly how such a mistake 
might be made, and exhibits astonishing resemblances to the form I 
have described. 
If we examine Brefeldt and Moeller’st results of the cultivation of 
Tremella, very suggestive ideas as to the significance of the yeast-form 
are to be obtained, for Brefeld found that all the species of Z'remella 
have these secondary organs of propagation. | 
If we now turn to Brefeld’s figures|| of the “ yeast-conidia” of T're- 
mella, it must be confessed that the much more rounded forms are 
different from those I have obtained in my cultures; nor do the sizes 
agree, a point probably of less importance since, as we have seen, the 
dimensions vary considerably. On the other hand, the characters of 
the colonies—e.g., Pl. viii., Fig. 16—are in some cases strikingly simi- 
lar, and the growing out into hyphe, radiating from the colony, is 
quite similar—c.f. Brefeld’s Figs. 16.2 and my Figs. 5 e¢ and 6e—a 
point of no small significance in my opinion. 
If this view is correct, we have the interesting fact that the basidia 
of a fungus such as 7’remella may become arrested, their protoplasm 
filled with stores of oil, and their walls thickened in the manner charac- 
teristic of chlamydospores. The fact remains, however, that I have 
never succeeded in getting these chlamydospores to germinate. 
* Ann, des. Sc. Nat. 1853 Ser. iii. T. 19 p.p. 203-4. 
+ Brefeld Unters. H. VII. 1888, p. 106. 
t Moeller Protobasidiomycetes 1995, p. 99, 
| Unters. H. VII. 1888, pl. vii. and viii. 
DESCRIPTION OF FIGURES. 
Fig. 1. An old colony on wort-gelatine.* Nat. size. In colour it was 
deep orange yellow. 
Fig. 2. Part of the extreme margin of the same, showing the chlamy- 
dospores and a few yeast-cells immersed in mucilage x about 
400. : 
Fig. 3. Thoroughly ripe chlamydospores from the older parts of the 
colony, showing the oily contents and firm cell-walls x about 
1,000. 
Fig. 3. (2) A chlamydospore and two yeast-cells isolated in wort- 
gelatine in a hanging-drop at 12 noon on Dec. 14; () the 
colonies resulting from the growth of the yeast at: 11.15 on 
Dec. 15. The chlamydospore showed no signs of germina- 
tion then or later. x about 800. 
* This drawing was kindly made by te Dawson D.Sc. The others are by the 
author. 

