I2 4 



A. Smith: Polyzoa at Grimsby. 



spot were Helotium lutescens Fr. and H. femigiiieum Fr. The 

 walk through the woods and fields yielded several species not 

 noticed during" the previous days, the most interesting - of these 

 being Lepiota excoriata Schaeftv, Trichotoma melalcucum Pers. 

 var. porphyroleuciim Fr., and Agaricus sagdtus Fr. 



At Cu-s worth an Ash tree was seen bearing several piles of 

 the destructive tree parasite Fomes igniariiis Fr. ; the top of the 

 tree was entirely dead, and doubtless the interior would be 

 permeated by the mycelium of the fungus. At Cusworth also 

 the stump of a felled tree formed a centre for an extensive 

 colon} of the pretty, though common, Psathyrella disseminata 

 Pers. ; besides dense clusters in and around the stump itself, 

 smaller groups were scattered along' the lines of the spreading 

 roots of the tree for several yards on every side. 



Among the Myxogastres a fine colony of Physarum tearo- 

 phceum Fr. was found in Potridings Wood, and the pretty 

 Trichia varia Pers. occurred in profusion. The Hollyhock 

 disease fungus (Puccinia malvacearum) was seen on a plant of 

 Malva sylvestris in the village of Sprotborough. 



NOTE on LINCOLNSHIRE POLYZOA. 



Polyzoa at Grimsby. — After the north-east winds a "real amount 

 of sea-weed, etc., is washed up on the foreshores of Grimsby and Clee- 

 thorpes, and amongst this are of course found great numbers of marine 

 specimens. A few morning's ago I went on to the beach and picked up 

 a small mass of tangled weed, zoophytes, etc., and took it home for 

 examination, and among several other specimens of Invertebrates found the 

 following : — 



Antennularia ftntennina. Membraiiipora membranacea. 



Antennularia ramosa. Membranipora pilosa. 



Crisia eburnea. Sertuhxria abietinct. 



Flustra foliacea. Sertnlaria argentea. 



Flustra truncata. Sertularia filiciila. 



Hydractinia echinata (on shell). Thiiiaria articulata, 

 Hydrallmania falcata (in plenty). Thiiiaria thuia. 

 — Arthur Smith, 5, Cavendish Street, Grimsby, 1 8th December 1901. 



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Naturalist. 



