Repokts of Societies. 



157 



some time, and much examination of the abundance of H. cnjpressiforme 

 also growing on the sandy peat amongst the heather, I at last came on the 

 true ti. imponens. It is of a far brighter yellow than any cupressifovme 

 I ever saw, and the lower part of the plant of a rich chocolate brown. 

 The leaves are more delicate — more circinate and filiform. These are 

 points at once visible without a lens. I sent it to Mr. Boswell, partly 

 to get his decision, as to which I suppose there will be no doubt, and 

 partly because he had asked me for it. I have had the pleasure of sending 

 some to Mr. Hobkirk, and will gladly give some to any applicant. I 

 should like to see in the Naturalist a list of the localities known to 

 the present time. — J. S. Wesley. 



Mypnum imponens m Yorkshire. — " It appears that you (Dr. Wesley) 

 are not the only one who has gathered this moss on Strensall Common, 

 for Mr. Stabler has just sent me two specimens gathered there by himself 

 four or five years ago, one so-named and the other blank, both of which I 

 consider to be the real thing sine ullo duhio, though the blank one lacks 

 the characteristic colour and seems to have been sunburned. The cellular 

 structure of the base of the leaf appears to me so different in imponens, 

 that if a microscopic examination is made there can be no difficulty in 

 recognising the plant : but without that it bears so much resemblance to 

 ordinary forms of cupressiforme that a casual glance may readily deceive one, 

 though the glossy golden green above and the chesnut brown of the under 

 parts of the tuft, when the attention has once been drawn to them, seem 

 to offer a ready means of recognition. I, at least, have never seen the 

 same colours in any of the numerous forms of the commoner species. It 

 seems to me by no means so difficult to discriminate between the two 

 mosses in question as betw^een some others. Mr. Stabler tells me Wilson 

 was the first to gather H. imponens at Strensall. Amongst your imponens 

 I found a solitary detached capsule, very young, which may have belonged 

 to it or not ; it was the right shape, but too immature for certification. 

 If you could find fruit, it would be new to Britain ; at any rate, it is 

 worth trying. I can only find as yet flowerless stems so far as I have seen." 



H. Boswell, Oxford, April 10th. — {Extract from letter.) 



REVIEW. — " Illustrations of Yarieties of British Lepidoptera. " Part 



I. , March, 1878. Huddersfield : S. L. Mosley, Primrose Hill. Price 8s. 

 — We congratulate Mr. Mosley on the opportune appearance of this 

 book. Perhaps at no previous time has there been so much interest 

 taken in unusual forms or aberrations in lepidoptera, and Mr. Mosley's 

 effort will supply a want which would before long have begun to be felt. 

 The first number before us contains six plates, all coloured by hand from 

 specimens lent from various cabinets in the country ; and the execution 

 of them deserves every praise. We consider the plates of Chelonia caja 

 and Abraxas grossulariata about the best, but it is difficult to select where 

 all are so good. We should think every lepidopterist interested in 

 varieties will at once become a subscriber to this work. 



