SOME SEGREGATES OF ERODIUM CICUTAKIUM 127 



Wheldon for the loan of specimens : we have also had the opportunity 

 of examining the Erodiums in the herbarium of the late E. S. 

 Marshall. 



Explanation: of Plate 554. 



A. E. neglectum nob. from Anglesey, with filament enlarged 12 times. 



B. E. Lebelii Jord. (1) From Anglesey. (2) From Broad Sands, Devon, 



with filament enlarged 12 times. 



MYCETOZOA FROM COENWALL. 



Br a. LisTEE, F.L.S. 



The accompanying list of Mycetozoa found in Cornwall is due 

 very largely to the observations of the late Dr. Alfred Adams. As 

 long ago as 1906, specimens were sent by him from Looe and the 

 surrounding country to my father and me for identihcation ; and 

 since 1911, when I tirst had the pleasure of meeting him at a forav 

 of the British Mycological Society at Taunton, until his death in 

 October 1919, few months have passed without my receiving packages 

 of interesting specimens which he wished to discuss with me. Not 

 only was he a good collector, but he was also a keen and accurate 

 student of living Mycetozoa. He carried on many successful cultiva- 

 tions of Plasmodia found in the open, and one year kept Badhamia 

 nifeiis in the active stage for nine months, feeding it on the leather}'- 

 fungus Stereum liirsufum. He was the first to recoi-d the three 

 arboreal species Badhamia versicolor, B. ajfinis, and Diderma 

 arhoreum for England. 



B. versicolor was first discovered by the Rev. William Cran in 

 Aberdeenshire, on the bark of exposed trees ; it has since been 

 recorded from East Canada and Colorado ; B. affinis and Diderma 

 arhoreum were found in Britain for the first time by Mr. Cran ; the 

 former has been recorded, besides the type from Chili, from Penns^d- 

 vania, from Japan, and South Africa. The type of Diderma arhoreum 

 was found in Ceylon ; it has also been recorded from the Malay 

 Peninsula by Mr. A. R. Sanderson, and from Japan by M K. 

 Minakata. 



Dr. Adams was the first to find Bhifsarum iincleatum in Britain, 

 when in July 1911 he obtained a considerable development on decaved 

 wood. Up to that time this species, which is not uncommon in the 

 tropics, in the United States and Japan, Ixad been recorded in Europe 

 only once, from a greenhouse in Ziirich. It has since been obtained 

 in North Devon by Mr. N. Gr. Hadden, and in Roumania by Dr. 

 Marcel Brandza. The sporangia from England and Roumania differ 

 from the elegant tropical specimens in being shortly stalked or even, 

 occasionally, sessile, and the characteristic ball of calcareous matter 

 in the centre of the capillitium is not conspicuously developed, but in 

 other respects they are typical. 



There are two other collectors to whom we are especially in- 

 debted for notes on Mycetozoa from Cornwall. Mr. G. H. Fox, of 

 Glendurgan, Falmouth, obtained, besides more abundant species, fine 

 specimens of Bhysarum cifrinum and Stemonitis S2)lende?is var. 



