468 THE BOTANICAL EXCHANGE CLUB OP THE BRITISH ISLES. 



Pyrus pinnatifida Ehrh. (P. Aucuparia x intermedia). With the 

 assumed parents, Weston Wood, Albury Park, Surrey, Sept. 29, 1913. — 

 A. B. Jackson. My statement in the Albury Park Catalogue of Trees 

 and Shrubs, p. 56, that this is probably a cross between the mountain 

 ash and white beam is a slip. Most modern authors consider the 

 parentage as above. — Ed. " P. intermedia is not mentioned at all as 

 occurring in the Park. I think P. Aucuparia is a doubtful native 

 of Surrey (as in Kent), and P. intermedia is not indigenous in the 

 South of England. It occurs in plantations on Leatherhead Downs." 

 — C. E. Salmon. 



Pyrus Aria Ehrh., seedlings. Millwood, Dalton, v.-c. 69, May 10, 

 1913. Some seedlings of Cratcegus oxyacantha are probably inter- 

 spersed here. I failed to separate them with certainty. — D. Lumb. 



Cratcegus oxyacantha L. The Haggs, Dalton, Lanes., v.-c. 69, 

 May 10, 1913. Some seedlings of Pyrus Aria are probabl}' inter- 

 spersed here. — D. Lumb. 



Cratcegus monogyna Jacq., var. Wood, Bucks, Essex, v.-c. 19, 

 June 4, 1913.— G. C. Brown. 



Sedum Drucei Graebner. See Report 1912, p. 160. Rollright, 

 Oxon. Flowering specimens to supplement those distributed last 

 year. When in the Auvergne in May I saw at Le Puy the 

 continental S. acre, which is a more caespitose erect plant, with larger 

 and more swollen leaves. — G. C. Druce. 



Callitriche ? [Ref. No. 368.] Ditch, Barnes Green, near 



Malvern, Worcester, July 22, 1913.— S. H. Bickham and R. F. 

 TowNDROw. " Ls C. stagnalis Scop." — J. Groves. 



Callitriche 1 [Ref. No. 370.] Castle Newton Common, Wor- 

 cester, July 29, 1913. "(7. stagncdis Scop."— J. Groves. "Is this 

 not G. palustris L.^' — G. C. Druce. 



Callitriche stagnalis Scop. Huscote, Northants, June 1913. — 

 G. C. Druce. " Yes. '—J. Groves. 



Callitriche stagnalis Scop. [Ref. No. 9445.] Growing on mud at 

 Latchford, Oxon, July 1913. — G. C. Druce. 



Callitriche intermedia HofFm., var. homoiophylla (Gren. and Godr). 

 Quarry pool, Kinnoul Wood, Forfar, alt. 450 feet, October 22, 1913. 

 — R. and M. Corstorphine. " Yes." — G. C. Druce. " I do not 

 think the varietal name should be applied to this young sterile state 

 of the plant." — J, Groves, 



