94 Prof. Marshall Ward, Notes on some of the Rarer 
Thamnidium elegans, Link., Ghaetocladium Jonesii, Fres., Syn- 
cephalis cor data, Van Tiegh, Piptocephalis Freseniana, De By., 
and Sporodinia grandis, Link., have been brought in and deter- 
mined by Mr Biffen, and it is possible that a form now under 
investigation may be Syncephalastrum, Schrot. To these I can 
add Phycomyces nitens, Kunze and Schmidt, a remarkable large 
Mucor-like form which, owing to Dr Plowright’s kindness, I saw 
in immense quantity on the debris of burnt oil and cake after a 
fire at a mill at Lynn some time ago. It is interesting as a fat- 
splitting fungus. Ghaetocladium and Piptocephalis, it will be noted, 
are parasitic on another fungus, Mucor, and there is an interesting 
field for further research here awaiting some investigator with the 
necessary patience and enthusiasm. According to a statement in 
Massee’s British Fungi 1 , Piptocephalis was still unrecorded for 
Britain, and Mr Biffen’s find appears to be new. 
Protomyces macrosporus, Unger., a species rendered classical 
from De Bary’s researches and Brefeld’s theoretical views as to its 
morphology, is probably commoner than is usually supposed. 
I find it in abundance on JEgopodium podagraria growing by the 
ditch in West Road. 
Doassansia Sagittarice, Fischer. 
I have found this interesting member of the Ustilagineae on 
Sagittaria Sagittifolia near Barton. Very similar patches are 
often produced on the leaves by quite a different fungus. How- 
ever, I am not now concerned specially with the fungi of Cam- 
bridgeshire, of which I hope an account may be given at a later 
date. 
Endomyces Magnusii, Ludwig. 
In 1886, Ludwig 2 drew particular attention to this curious 
fungus, occurring in the slime of trees affected with the disease 
known as slime-fiux. A few weeks ago Mr Biffen brought in a 
species of Endomyces, found in the slime from an Elm in 
Cambridge, which agrees in important points with Ludwig’s form, 
though there are other points which raise doubts that it may be 
E. decipiens, Tul., or possibly even a new species. I believe this 
is the first recorded discovery of this fungus in England. 
The fungus is particularly interesting theoretically in connec- 
tion with Brefeld’s attempt to found a new system of classification 
of the Ascomycetes. 
Whether new or not, the • fungus is undoubtedly interesting, 
and its further behaviour is being studied. 
1 Reeve & Co. 1891, p. 106. 
2 Ber. d. d. hot. Ges, 1886. 
