f Ecology and Phenology of Surrey Myceiozoa. 63 



development of this was noticed maturing on the stalks of li\-ing 

 grass sprouting from an old dung heap. 



28. Craterium miniitum Fries occurs throughout the year 

 on all sorts of deca\-ing foliage. It has been gathered on pine 

 needles, holly, horse-chestnut, beech, laurel, bramble, lime 

 petioles, yew and on cones. 



29. C leiicocephalum Ditm. appeared in July on holly leaves 

 and abundantly in October on laurel, i\-y and Agave stalks. 



t30. C. aureiitn Rost. This beautiful httle species was abundant 

 below Hindhead in August 191 7 and in July 1920 when it 

 occurred in some profusion on alder twigs at Weybridge. 



31. Leocarpus fragilis Link is a conspicuous species in spring 

 and autumn growing over all kinds of dead leaves, grass and 

 bramble. It seems to have a preference, however, for pine and 

 tir needles. 



32. Diderma spiimarioides Fr. crops up repeatedly on rotting 

 foliage. Especially prevalent in spring and early summer, it has 

 been found on oak, beech, alder, bramble and laurel leaves. 



33. D. hemisphericum Homem. occurs on beech and horse- 

 chestnut leaves in damp situations in April, on old straw in 

 September and copiously on alder and bramble in October. 



*34. D. effusiim Morg. is conspicuous in Februar\- and April 

 on sweet chestnut and rotting laurel leaves and in May on 

 Quercus Ilex; in July it was very abundant on wood in a moist 

 ditch filled with black decaying leaves, in September on birch 

 wood and in October on rotting leaves and also among faggots. 



*35. D. deplanatum Fr. Only once have I met this species, 

 in the earlv davs of my interest in Mycetozoa, when I gathered 

 it under the impression that it was an unusually robust form 

 of D. difforme. It was seated on an old oak stick and approached 

 D. niveum in character, with rather more columella developed 

 than usual. 



♦36. D. ynontanutn Meyl. is rather a misleading name for a 

 species not confined to mountains. The present specimen oc- 

 curred on a dead pine branch King among wet grass in October, 

 in the woods surroimding the lake at Virginia Water. It closely 

 resembles D. radiatum var. umbilicatum Meylan, but is dis- 

 tinguished by its smaller size and spores which are apt to be 

 paler. 



t37. D. testaceum Pers. has only once been found in Siurey 

 when Mr Arthur Lister came across it at Witley on dead leaves 

 in October 1S96. 



38. D. floriforme Pers. though not uncommon under oak 

 trees in autvmin^ this species has only twice been recorded for 

 Surrey, in 1906 by Professor Farmer at Wimbledon and in 1912 

 by Miss G. Lister at Weybridge. 



