Pyrus 



159 



PYRUS INTERMEDIA, Swedish Whitebeam 



Pyrus intermedia, Ehrhart, Beitrage zur Naturkunde, iv. 20 (1789); Loudon, Arb. et Frut. Brit. ii. 



915(1838). 

 Pyrns scandica, Ascherson, Fl. des Prov. Brandenburg, i. 207 (1864). 

 Pyrus suecica, Garcke, Fl. Deutschland, ed. ix. 140 (1869); Conwentz, Beob. iiber Seltene Wald- 



bdume in West Preussen, 81 (1895). 

 Sorbus scandica, Fries, Flora Hollandica, 83 (181 8). 

 Sorbus intennedia, Persoon, Syn. PL ii. 38 (1807). 



Sorbus Mougeoti, Soyer-Willemet et Godron, Bull. Soc. Bot. de France, v. 447 (1858). 

 Cratcegus Aria scandica, Linnaeus, Amxn. Acad. 190 (175 1). 

 CratcBgus Aria suecica, Linnaeus, Sp. PI. 476 (1753). 



A shrub or small tree attaining a height of 20 to 50 feet. Leaves stalked, oval 

 or elliptic, rounded or cuneate at the base, pointed at the apex ; mai-gin lobed, lobes 

 diminishing in size from the base upwards, rounded, toothed, shortly acuminate, 

 separated by sinuses which are very acute or almost closed at their bases ; upper 

 surface green, shining, glabrous when adult, lower surface greyish tomentose. 

 Flowers in branching corymbs, with pleasant odour ; petals spreading, tomentose ; 

 styles 2, free, tomentose at the base. Fruit oval, red, sweet-flavoured, smooth or 

 slightly dotted. 



Varieties 



1. Scandica} Leaves less narrowed and almost rounded at the base, deeply 

 lobed, with numerous sharp teeth ; 6-8 pairs of nerves. Fruits large, surmounted by 

 the curved and outwardly-reflected calyx teeth. 



2. Mougeoli.'^ Leaves narrowed at the base, slightly lobed, with few short 

 teeth ; nerves 9-12 pairs. Fruit very small, surmounted by erect and inwardly-curved 

 calyx teeth. 



3. Minima.^ Leaves linear-oblong, with 3-4 pairs of lobes, variable in size, but 

 generally deepest at the middle part of the leaf ; nerves 6-8 pairs. Flowers early in 

 June in loose corymbs, not flat-topped, small, and resembling those of Pyrus 

 Aticuparia. Fruit small, globose, bright red, surmounted by erect calyx lobes. 



In Plate 44 figures are given of the leaves of van scandica from Bergen (Fig. 

 19), of the variety from Great Doward in Hereford (Fig. 10), and of van minima 

 from Breconshire (Fig. 17). 



Identification 



In summer the greyish tomentum of the leaves underneath, and the rounded 

 lobes, with sharp sinuses which are almost closed at their bases, will distinguish the 



' Sorbus scandica. Fries, he. cit. '^ Sorbus Mougeoti, Soy.-Will. et God. loc. cit. 



^ Pyrus minima, \.ey,/our. of Bol. 1895, p. 84, and 1897, p. 289, t. 372 ; Sorbus minima, Hedlund, Kon, Sv. Vtten. 

 Akad. Handl. (1 90 1-2) 60. 



