Ecology and Phenology of Surrey Mycetozoa. 71 



yellow though usually rose. It is abundant in September and 

 October on pine sawdust and stumps. \Mien old and discoloured 

 it may resemble robust forms of Didydiaethalium plumben7n or 

 a dull ochraceous Lindhladia. 



Sj. Didydiaethalium plumheum Rost. In September 1916 

 the beautiful pink plasmodium of this species was conspicuous, 

 in patches over two inches in diameter, on the soft rotten trunk 

 of an old beech. It developed into a very sturdy aethalium, 

 being as much as 3 mm. thick in parts; the threads were very 

 jagged on one side and occasionally had a slight frill of per- 

 sistent sporangial waU. On the other hand very minute forms, 

 no bigger than a pin's head, appeared in October on laurel 

 faggots. In November it has been noticed on hme wood, in 

 December on ash used as bean sticks and in April on a thick 

 rotten stem of ivy. 



|88. Enteridiiim olivaceum Ehrenb. Indistinguishable from 

 the last in the plasmodial stage, the aethahum sometimes 

 appears as a mere speck composed of no more than two or 

 three sporangia or again it may extend to five or six centimetres. 

 This latter form I have found on pine logs in November, the 

 former on hme and larch branches in October. A glossy bottle 

 green variety is frequent enough on lime branches; it has not 

 the usual depressed form but is composed of rather heaped 

 convex sporangia; it is somewhat brittle and the contents get 

 shaken out lea\ing nought but the green translucent walls; 

 in other ways it agrees wdth the typical form and therefore 

 cannot claim any specific difference. 



I89. E. liceoides Lister. This somewhat rare species has been 

 recorded three times in Surrey: at Haslemere in October 1905, 

 at Oxshott in 1917 and at' Weybridge in September 1920 on a 

 decorticated pine stick. The outer sporangial wall was mottled, 

 the inner brown and glossy. 



90. Reticular i a Lycoperdon Bull. As regular as clockwork, as 

 soon as March comes round, so soon this species appears, and 

 from then until August it may be found frequently, on a variety 

 of trees. I have noticed it on alder, \\illow, pine, poplar, cedar 

 and birch. 



191. Liceopsis lohata Torrend. A crumbling old pine log half 

 buried in the soil yielded a handsome crop of this beautiful 

 species in September 1920. Some of the sporangia were solitary 

 and supported on a t\\isted strand of hypothallus. In August 

 1892 it was recorded for the first time for the county, near 

 Woking. In Weybridge it was still appearing in November and 

 the following April another development was found within 

 twenty yards of the former; but it was only by Ufting the log 

 out of the soil that it was discovered, as in each case it was 



