94 Prof. Marshall Ward, Notes on some of the Rarer 



Thamnidium elegans, Link., Chaetocladium Jonesii, Fres., Syn- 

 cephalis cordata, 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. Chaetocladium 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 Ustilaginea? 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-flux. A few weeks ago Mr Biffen brought in a 

 species of Endomyces, found in the slime from an Elm i: 

 Cambridge, which agrees in important points with Ludwig's fora 

 though there are other points which raise doubts that it may I 

 E. decipiens, Tul., or possibly even a new species. I believe th^ 

 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 Eeeve & Co. 1891, p. 106. 

 3 Ber. d. d. hot. Ges. 1886. 



