278 



PYRUS 



P. AURICULARIS, Knoop. BOLLWYLLER PEAR. 



(P. bollvvylleriana, De Candolle ; Sorbopyrus auricularis, C. K. Schneider.} 



A deciduous tree, 20 to 40 ft. high (sometimes 50 to 60 ft.), forming a 

 rounded bushy head ; young branches more or less covered with loose down. 

 Leaves ovate or oval, 3 to 4 ins. long, 2 to 2^ ins. wide ; pointed, irregularly 

 and coarsely, sometimes doubly toothed ; rounded or rather heart-shaped at 

 the base ; upper surface covered at first with loose down which falls away as 

 the season advances, lower surface permanently grey-felted ; stalk i to i| ins. 

 long, woolly. Flowers white, f to i in. across, produced about mid-May in 

 many-flowered corymbs 2 to 3 ins. across ; stamens rosy red ; calyx with its 

 triangular lobes covered with a conspicuous pure white wool. Fruit pear- 



PVKUS AUBICDLARIS. 



with 



shaped, i to i J ins. long and wide, red, each on a stalk i to i^ ins. long, 

 sweet, yellowish flesh. 



This interesting and remarkable tree is a hybrid between the common 

 whitebeam (P. Aria) and the pear (P. communis). It is said to have originated 

 at Bollwyller, in Alsace, and is first mentioned by Johannes Bauhin in i6ig 

 and figured by him in 1650. For three hundred years it has been propagated 

 by grafts, for it produces very few fertile seeds, and these do not come true. 

 The finest tree known to me is at Bramford Hall-, Ipswich, which, according 

 to information received from Lady Loraine in 1904, was then over 60 ft. high. 



P. BACCATA, Linnceus. SIBERIAN CRAB. 



(Bot. Mag., t. 6112 ; Malus baccata, Borkhausen^) 

 A tree 20 to 40 ft. high, forming a rounded, wide-sreading he-id 



of 



branches, the lower ones arching or pendulous at the extremities ; trunk i to 2 



