84 ON THE DISTRIBUTION OF HYPNUM SALEBROSUM. 



Atriphx deltoidea, Bab. Harpole, Nene a; Sewage-works, 



Nene b; Peterboro', Nene c. 



A. erecta, Huds. Sewage-works, Nene b ; Barnack, Nene c. 

 A. Smithii, Syme. Sewage-works, Nene b ; Old Stratford, 



Ouse. 



Rume.c nemorosus, Sclirad. Duston, Nene a; Denshanger; 



Wicken Wood; Whittlebury Forest, Ouse. 



R. maritimm, L. (queried in - Top. Bot.') Found last August 

 growing sparingly by some of the cross drains below Peterboro'. 



Polygonum maculatum, Dyer. Var. densum; plentiful by dyke 

 sides below Peterboro', growing with Polygonum nodosum, Pers., 



var. album, &c. 



P. biforme, Wahl. Kingsthorpe railway-side, Nene a. 



Mercurial is annua, L. Ploughed fields, King's Cliff (Lmvin)* 

 Ceratophyllum aquuticum, E. B. Nene near Castle Bridge, 

 Northampton; iawsley Park fish-ponds, Nene a; Boughton fish- 

 pond, Nene b ; Peterboro' dykes, Nene c ; Furtho, Wakefield, 



Ouse. 



Urtica Dodartii, L. Near Kettering (Leivin), Nene b. 



Ulmus glabra, Mill. Frequent about Cransley, &c, Nene b. 



Quercus pedunculata, Ehrh. The ' Queen's ' and * Salcey ' oak are 

 this variety. 



Carpinus Betulns, Ij. Bare; Upton; Yardley Chase. 



Popndus alba, L. Dallington, Nene a; Great Billing, Nene b ; 



Moor end, Ouse. 



(To be oncluded.) 



ON THE DISTRIBUTION OF HYPNUM SALEBROSUM, 



Hoffm., IN BRITAIN. 



By E. M. Holmes, F.L.S. 



Mr. G. Davies, by questioning the evidence of the occurrence 

 of Hypnum salebrosum, Hoffm., as a British moss, has done good 

 service by eliciting more accurate information concerning the 

 characteristic features as well as the geographical distribution of 

 the species. One or two points, however, remain which it might be 

 interesting to clear up. Having had the opportunity of examining 

 the specimens in the British Museum, which have been alluded to 

 in the ■ Journal of Botany ' for 1879 (pp. 305, 844, 359), I am glad 

 to be able to confirm the statements of Dr. Spruce and Mr. F. A. 

 Lees. 



In Wilson's herbarium there exist two specimens labelled, 

 "On trees, Oakcliff Wood, Kirkham Hill, Yorkshire, Oct., 1848/' 

 which exactly answer to Dr. Spruce's description of the species. 

 These specimens are marked also "forma capsulis par vis," 

 apparently in Dr. Spruce's writing. In appearance they corres- 

 pond to the figure given by Schimper in 'Bryol. Eur.,' t. 16, c. 1. 

 No other specimen in Wilson's herbarium annears to be the true 



all 



H 



except a few sent to him as II. salebrosum, which have been 



