Ecology and Phenology of Surrey Mycetozoa. 67 



var. confluens Lister. Was seen forming-up on an old horse- 

 chestnut stump in spite of a hot August sun. 



55. S. splendens Rost. var. flaccida Lister occurred in 

 August on fir stumps near Guildford and at Witley, and on 

 old decayed black poplar at Weybridge. 



t56. 5. confluens Cooke and ElHs. In late November 1920 the 

 white Plasmodium was noticed emerging from a piece of old 

 bark of Lombardy poplar h'ing among wet grass and damp 

 leaves. It eventually matured into three beautifully neat 

 fascicles with the tips of the component sporangia clearly 

 showing. 



57. S. herbatica Peck has been found abundantly at Witley 

 on pine stumps. 



58. S. flavogenita Jahn was gathered in June and July on 

 rotten fir wood, and on ground-ivy [Nepeta Glechoma), where 

 the Plasmodium had most probably crept from some rotting 

 timber. 



59. S. ferruginea Ehrenb. is frequent from May to October 

 especiallv on coniferous wood. It has been reported from Wey- 

 bridge and Woking, Guildford, Reigate and Oxshott. 



60. S. hyperopia Meyl. The specific name is most appropriate 

 as this species is surely often overlooked. On the uprooted pine 

 stumps near the St George's Hill Golf Course, Weybridge, it has 

 been found repeatedly in September and October. The sharp 

 patches of reticulation on the small spores give the clue to its 

 correct determination. 



61. Comatricha nigra Schroet. may be gathered any day of 

 the year on dead twigs and wood. 



var. aha Lister is common enough in the winter months on 

 beech and poplar branches. 



62. C. laxa Rost. has been frequently found from March 

 to November on old bramble stems. 



163. C. fimbriata G. Lister and Cran. The first Surrey record 

 of this minute and deUcate species was made near Hindhead 

 in August 19 1 7. In Weybridge it has been found in conjunction 

 with C. elegans on a hchen covered larch stick in October, and 

 the following month some forty sporangia were found on a 

 decorticated pine stick. By keeping the stick moist in a tin 

 box, further large crops were reared every month in the year. 

 It has also been gathered on a rhododendron branch. 



64. C. eIegans\isieT occurred in April on rotting ivy leaves 

 but has more often been noticed on dead wood, especially oak, 

 ash and larch. 



65. C. lurida Lister. This unfrequent species has been met 

 with but twice; in October 1896 at Reigate, and in January 

 1897 on dead holly leaves heaped in dry ditches. 



