FLORA OF THE EAST RIDING OF YORKSHIRE. IO3 



583. Pyrus Aucuparia, Ehrh., io8. 



(Mountain Ash1. 

 Native, Brit., 1-7. July III. 



Frequent in woods and copses. Benningholme in Holder- 

 ness* and in all the divisions. 



584. P. communis. Linn., 49. 

 (Wild Pear). 

 Denizen, Eng., 6-7. May, I. 



In hedge near York (B.) (H.S.) an escape. Hedge North 

 Cave, 1899.* 



586. P. MalUS. Linn., 88. 



(Crab-Apple Tree). 



Native, Eng., 1-7. May, III. 



Often in hedges. The var, acerba, DC, common. Var. 

 mitis frequent in the neighbourhood of South Dalton.* 



587. P. germanica. Hook. fil. 



(Medlar). 

 Alien. 



Introduced in shrubberies and gardens, Hull and Anlaby, 

 whence Mr. J. Porter has obtained ripe fruit. 



588. Crataegus Oxyacantlia. Linn., m. 



(Hawthorn). 

 (Flowers="May." Fruits = " Cat-haws," E.R.D.). 



Native, Brit., 1-7. June, I. 



Nowhere more luxuriant than in the East Riding. Many 

 large old specimens near villages, or on the sites of former 

 villages, e.g., near Hedon and Meaux Abbey, A rosy-flowered 

 variety frequent near Marfleet, Hull. Var. monogyna Jacq., 

 near Waxholme in Holderness (C.W.). 



