NOTES ON SWISS MYCETOZOA 917 
factory to regard P. vernum as merely a robust dark-spored variety 
of P. cinereum. 
CHONDRIODERMA NIvEUM Rost. This is by far the most abun- 
dant =e on the Swedish and Swiss Alps. Above Arolla, in 
of flow sad grass, while half under the melting er 
often be a under the snow itself. The numerous specimens 
show great variety in the size of the sporangia, which may 
—— or shortly sictked; in the shape and colour of the columella, 
n the colour and mode of branching of the capillitium, and in the 
or sh ur, size, and roughness of the spores; in fact, we have every 
combination of the characters that have been ascribed both to 
iveum Rost. and C. Lyallit Mass. C. Lyallit ae therefore 
be regarded as a distinct species, and must be re to the 
position of var. Lyallii of C. nivewm; see Schinz, Die Myxomy- 
ceten pe Schweiz, p. 52, 1906. 
It is curious that the var. deplanatum of C. niveum, a plasmo- 
Aisbien heen without columella, appears to have been obtained only 
_ from Portugal,* and from the British Isles; with us it is the one 
form of the species yet ies if we ex cept a — imen — 
in a mountain glen in ales, which shows the orange- 
brown floor of the oe ridged to form a distinct se a 
C. TrEVELYANI Rost. ies seems to be nowhere 
common; it has been obtained from the British Isles, Sweden, Ger- 
many and Switzerland, and in North America from the States of 
Cargmacrg Colorado, and California. In July, 1907, we gathered 
it in some abundance in hollows on the Alps where snow had 
narrow, or broad and esis slasniodiveatne: When nace 
we that Greville was correct in amelie & and Pagating “a 
very minute columella” in his type-specimen (referred to in Brit. 
Mus. Cat. p. 82). 
LermopEeRMA CarestiANum (Rabenh.) Rost. The change 
ap Dee Meee species assumes have been described by Prof. Schinz 
Die omyceten der Schweiz, p. 63, where reasons are give 
for ‘epantiag L. Chailletii Rost. and L. granuliferum R. E. Fries as 
forms of this species. We obtained about fifty plasmodiocarps of 
* Gathered near Lisbon, January, 1908, by J. C. Torrend, 8.J. 
