Yorkshire Naturalists at Driffield 303 
aduncum. In the marshy ground next visited other factors 
seemed to enter in; the chief moss was Hypnum revolvens 
with some Hypnum cuspidatum, H. elodes and IT. giganteum ; 
also Mnium affine var. elatum, and on the streamside Philonotis 
calcarea, all of which points to the water supply being of a 
calcareous type, and the absence of any sphagnum is con- 
firmatory evidence of this. 
MycoLtocy.—Mr. W. N. Cheesman writes :— 
Mr. R. Fowler Jones and the writer made diligent search 
during the available collecting time with the result of recording 
thirty-five species of fungi and ten species of mycetozoa. 
The most noteworthy fungi were three species of peziza, all 
blood in colour and similar in size (6-8 mm.) and outward 
appearances. Microscopic examination proved these to be 
Spherospora trechtspora from marshy ground near King’s Mill, 
Lachnea scutellata on decayed wood and L. umbrata on the bare 
soilat Kellythorpe. Puccinia molinie was abundant on Orchts 
maculata and its uredospores on Molinia cerulea near by. The 
elder-bushes in the woods were covered with the Jew’s ear 
fungus Hirneola auricula-judeé, and in a single instance it was 
found on Alnus glutinosa. 
Boggy places yielded a few sporophores of the beautiful 
ascomycete Mitrula paludosa. 
The rare Polyporus elegans was found on the collar of a 
willow-bush in a wet place which was found covered with Lastrea 
Thelypteris. P.vadiatus was on the same bush but two or three 
feet above the ground. 
Several patches of Rhizina undulata were seen under fir 
trees in the Kelleythorpe wood. 
Some leaves of FHolcws mollis bearing minute brown objects 
proved a mycological conundrum to several experts on leaf 
fungi to whom they were submitted, the Kew authorities 
eventually deciding that they were the sporangia of Pilobolus 
Kleinia which had adhered to the grass when shot off from 
the fungus. 
The most notable mycetozoa gathered were Physarum 
psittacinum, Diachea elegans, Stemonitis flavogenita and 
Enerthenema papillata ; also plasmodium, still undeveloped. 
GEOLOGY.—-The Geologists, under the leadership of Mr. 
J. W. Stather, visited the chalk quarries of Ruston Parva and 
Nafferton and obtained some characteristic fossils from the 
beds of Middle Chalk there exposed. Later they examined 
the fine collection in the Driffield Museum. 
2:O>; 


Mr. R. A. Phillips figures two species of Pistdium new to Ireland 
(namely P. supinum and P. parvulum) in the Ivish Naturalist for July. 
In the same Journal for June, Prof. C. J. Patten describes ‘ Fragmentary 
Remains of a Tree-Pipit found on Tuscar Rock.’ 
1916 Sept. 1. 
