160 THE BOTANICAL EXCHANGE CLUB OP THE BRITISH ISLES. 



the term " pyramidal " applied to the outhne of the Cornish Elm in 

 the Cambridge Flora. I should say " cylindrical " would be a better 

 term, though that is hardly correct, the longest branches being 

 usually just below the top^ and all the lower branches short and 

 scattered. This is probably the reason why rooks prefer this tree to 

 any other for nesting in. — C. C. Vigurs. 



Ulmiis glabra Huds. = U. montana Stokes. Trevowah, Crantock, 

 Newquay, W, Cornwall, middle of May 1914. These specimens in 

 good fruit are from one of the very few (Davey's Flora notwithstanding) 

 trees of this species in the county authoritatively named since the 

 elms became better understood than they used to be. T think this 

 species used to be confused with U. hollandica. This particular tree, 

 named by Dr Moss, fruits well. — C. C. Yigurs. " The petioles are 

 rather long for U. montana. One would like to see examples with 

 mature leaves." — A. B. Jackson. "Looks right."— E. S. Marshall. 



Alnus rotundifolia Mill, var. incisa. A fine tree, 40 feet high, 

 planted in the Rectory Close, Wigginton, Oxon, September 1, 1914. 

 Is this form of the alder native to the British Isles 1 Babington, ed. 

 9, gives it for Wigtonshire apparently as a native. — H. J. Riddelsdell. 

 " The inflorescence is that of A. glutinosa Gaertn., var. microcarpa 

 Rouy."— E. S. Marshall. " This is not the var. incisa, which has 

 the leaves small and deeply incised, resembling those of the common 

 hawthorn, but is the cut-leaved alder, A. glutinosa var. laciniata 

 Willdenow Berlin Baumz. 44, 1796, which is frequent in cultiva- 

 tion and often attains a large size, as at Syon House and Woburn. 

 According to Duhamel it occurs wild in the north of France, 

 particularly in Normandy, and in the woods of Montmorency near 

 Paris." — A. B. Jackson. " In Oxfordshire var. laciniata Willd. only 

 occurs as a planted tree, and there are fine examples in " The Parkb " 

 at Oxford. Wm. Cobbett is said to have planted a tree at 

 Wolvercote. See Report 1909, p. 473. Dr Balfour was the 

 authority for its occurrence in Wigtonshire (I native). Our late 

 member, T. A. Stewart, found a specimen on the Black Mountain, 

 Belfast, but he does not mention it in his Flora. It occurs (I planted) 

 at Lakenham Bridge, and is said to be native in Northern France." — 

 G. C. Druce. 



Salix triandra L. [Ref. No. 225]. Hedge, Earls Colne, N. Essex, 

 v.-c. 19; flowers, April 30 ; leaves, August 23, 1914. Teste G. C. 

 Druce.— G. C. Brown. "Rightly named." — E. F. Linton. "Type 

 {genuina Syme) I believe." — E. S. Marshall. 



Salix triandra L., ^ forma. [Ref. No. 229]. "The Moors," 

 Alphamstone, N. Essex, v.c 19, May 1914. See B.E.C. Report 1913, 

 p. 496. I send a supply of male flowers to supplement leaf-specimens 



