Field Notes. 



CRUSTACEA. 



Crustacea at W ither nse a.— JVycttp/iafies norvegica (M. 

 Sars) was cast up at Withernsea on 8th April with the Euthemisto 

 compressa previously recorded, but was by no means common, 

 only five examples being- found along- three miles. Canon 

 Norman has enumerated several Scotch records of this Northern 

 schizopod but no occurrences on the English coast (Ann. and 

 Mag. Nat. Hist., Ser. 6, Vol. 9, 1892, p. 460). The only other 

 Crustacea found on the tide-mark were three specimens of 

 Haplonyx cicada (Fabr. ), and this was also common in the 

 fishing boats and on dead Gurnards from the crab pots. In 

 the fishing boats were also found Amathilla homari (Fabr.), 

 Callisoma hopei \. Costs., Idotea linearis (Penn.), NcBuia excavata 

 Spence Bate, several large Hyas araneiis, and an abundance 

 of Pandaliis annulicornis Leach. Limnoria lignoriun (Rathke) 

 inhabits the piles supporting the sewage pipe. The beach on 

 this occasion was of the normal Holderness type: a level stretch 

 of sand covered the site of the boulders from which most of the 

 specimens listed in the January 'Naturalist' were obtained. — 

 T. Fetch, 27th April 1904. 



FLOWERING PLANTS. 

 Variations in Hawthorn. — On the south side of the valley, 

 and within the parish of Haugham, which separates the parishes 

 of Tathw^ell and Haugham, is a very high Hawthorn hedge 

 about ICQ yards in length. On 5th June I examined a consider- 

 able number of flowers along the whole length of this hedge and 

 found, with the exception of one bush, all were ' one-styled ' 

 (var. monogyna). Each inflorescence of the one bush had 

 both the one-styled and the two-styled flowers ; and in one 

 inflorescence I found one flower with three styles. With the 

 exception of some of the foliage being somewhat lighter in 

 colour there was no difference in the general appearance of this 

 bush from the other. With the object of ascertaining the pro- 

 portion of the two-styled flowers to the one-styled flowers, 

 I carefully examined ten inflorescences with the following- 

 result : — 



Number of Flowers on Each Inflorescence. 

 One-styled... 8 ... 8 ... 2 ... 4 ... 9 .. 8 ... 4 ...13 ...10 ...10 

 Two- ,, ... 5 ... 6 ...10 ... 8 ... 4 ... 6 ...12 ... 4 ... 6 ... 7 

 Three-,, ... — ... — ... — ... — ... i ... — ... — ... — ... — ... — 



It will be seen from this that nearly half of them are two-styled 

 flowers. — C. S. Carter, Louth, 7th June 1904. 



1904 September i. 



