3U 



THE NATUEALIST. 



ITOTICE OF A NEW SPECIES OE GRIMMIA EOUND m 

 PERTHSHIRE, BY DR. E. B. WHITE, 



By W. Wilson, 



GrIMMIA SUBSQUARROaA, WUs,, MSS. 



DioicouS' — Stems loosely tufted, didLotomous — Leaves spreading and 

 recurved, lanceolate, acute, hair-tipped, keeled, margin thickened and reflexed 

 areolae quadrate, enlarged at the base. 



Hab. Hill of Moncrieff and Hill of Kinnoul, near Perth. May 1865 — 

 (barren). Dr. F. Buchanan White. 



Very nearly allied to G. alpestris, but different in the form, direction 

 and texture of the leaves, which are composed of a single layer of cellules, 

 except at the thickened margin. 



Another species of Gi'imraia, new to Britain, viz. : — G. commutata, has 

 been found on the Hill of Moncrieff, (barren) by Dr. James Stirton, of 

 Glasgov/, July 1864, and since on Stenton Rock, with fruit, by Dr. E. B. 

 White, December 1865. It is alUed to G. ovata, but differs in the chan- 

 nelled leaves, not reflexed in the margin, and in the dioicous inflorescence. 



March 2lst, 1866. 



NOTE ON GRIMMIA EUGYRIA, 



Referring to the notice of this species in the Naturalist p. 329, I have a 

 letter from Mr. W. Wilson, in which he informs me that by further exami- 

 nation he has now convinced himself that the species found at Stenton Rock 

 is only a singular form of G, ovata, and is certainly not essentially distinct 

 from that species. Specimens have been sent by Mr. Wilson to Dr. Schimper, 

 which will receive his attention when he comes to consider the genus 

 Grimmia, in writing out his forthcoming supplement to the " Bryologia 

 Europoea." — Chas. P= Hobkirk, Huddersjield, 23rd March, 1866, 



