REPORT FOR 1912. 



249 



the parentage to be derived in part from R. spi^iosissima, L., as a 

 segregate. I only saw one bush of the aggregate in the neighbour- 

 hood, and did not stop to see which segregate it belonged to. The 

 other parent is more likely to be B. moJHs than R tomentosay as 

 the former is much the more frequent species. The hybrid is 

 abundant and constant. It seems to be nearer the form R. Sabi7ii 

 than R. Doniann, and is certainly not R. gracilis, which was founded 

 partly on specimens from this locality. — A. H. Wolley-Dod. " This 

 is no doubt a form of R. involuta, Sm. There can be no question 

 as to one parent being R. spinosissima, L., but from the specimen 

 before me I could not say whether the second parent is R. mollis, 

 Sm., or a form of R. tomentosa, Sm. But as Major Wolley-Dod saw 

 the bush, he is in a much better position to decide as to the second 

 parent than I am, and therefore I accept his diagnosis That does 

 not mean that I consider R. Sahini, Woods, as identical in most 

 cases with R. mollis x spinosissima.'' — W. Barclay. " Undoubtedly." 

 — E. S. Marshall. 



Pyrus commu7iis, L., b. Achras, Gaertn. By the river at Llandaff, 

 v.-c. 41, Aug. 30, 1902. No fl. or fr. seen, but probably rightly so 

 named. — H. J. Riddelsdell. 



Pyrus communis, L., var. Achras, Gaertn. Radley Wood, Berks, 

 May 1912.— G. C. Druce. 



Pyrus Aucuparia, Ehrh. Seedlings. Millwood, Dalton-in Fur- 

 ness, v.-c. 69, Sep. 30, 1912.— D. Lumb. 



Pyrus minima, Ley. Craig Cille, v.-c. 42, Aug. 21, 1906. These 

 specimens, of Mrs Ley's collecting, are sent for the benefit of members 

 who have joined the Club of recent years.— H. J. Riddelsdell. 



Pyrus Aria, Ehrh., forma with incise-lobate, very plicate leaves. 

 Foot of Cooper's Hill, v.-c. 33, July 1, 1912. Perhaps var. incisa, 

 Reichb. — H. J. Riddelsdell. "Hardly differs from what we 

 regard as the type." — E. S. Marshall. 



Pyrus latifolia, Syme, var. decipiens, N.E. Br. Leigh Woods, N. 

 Somerset, Aug. 22, 1905. Coll. A. Ley. Hedlund calls this form ' "? 

 Sorbus Mougeoti, Soy- Will, subsp. anglica, Hedlund x S. latifolia^ 

 Syme, nearer the former.' — H. J. Riddelsdell. 



Crataegus monogyna, Jacq., var. leiocalyx, Druce. [Ref. No. 

 4860.] Also [Ref. No. 4907] with one style, tube glabrous. Twin- 

 stead, Essex N., May 1912. The older name under monogyna is var. 

 glahrata, Sonder, Fl. Hamh. p. 265, 1851. If Engler's PJianzenreich 



