1 55 8 The Trees of Great Britain and Ireland 



serrations, tipped with peculiar minute sharp incurved glands; petiole long, 

 grey tomentose. Fruit sub-globose, i in. in diameter, on stout peduncles, 

 crowned by the persistent calyx. 



This very distinct species ^ occurs in the mountains of Bokhara, Fergana, 

 and Turkestan, at 4000 to 7000 ft. elevation. It is represented at Kew by a 

 tree^ about 20 ft. high, obtained from Dieck in 189 1, and by a shrub obtained 



from Spath in 1900. 



** Leaves not coriaceous. 

 (a) Midrib glandular above {in some of the leaves at least). 



6. Pyrus Pashia, Buchanan- Hamilton, ex Don, Prod. Fl. Nepal 236 (1825). 



A variable species in the Himalayas, of which the following form is in 

 cultivation : — 



Var. Kumaoni, Stapf, in Bot. Mag. t. 8256 (1906). 



A tree without thorns, attaining about 50 ft. in height. Branchlets and buds 

 glabrous. Leaves narrowly ovate, 2 to 3^^ in. long, i^ to 2 in. broad, glabrous, 

 subcordate at the broad rounded base, contracted into a long acuminate apex, 

 frequently glandular on the midrib above; petiole long, glabrous. Fruit 

 globose, I in. in diameter, from the apex of which the sepals fall off early. 



This is represented at Kew by a grafted tree, about 25 ft. high, which has 

 been growing in the collection of Rosacea for many years.^ The flowers are 

 handsome, at first suffused with pink, ultimately becoming white. 



(b) Midrib without glajids. 



7. Pyrus communis, Linnaeus. See p. 1560. 



V. Leaves entire in margin, or partly indistinctly crenulate. 



* Midrib glandular above. 



8. Pyrus elesagrifolia, Pallas, in Nov. Act. Petrop. vii. 355, t. 10 (1793)- 



A spiny tree or shrub. Branchlets and buds grey tomentose. Leaves 

 about 2 in. long and f in. broad, obovate or obovate-lanceolate, usually tapering 

 in the basal half, acute or rounded and mucronate at the apex, entire in 

 margin ; upper surface with scattered tomentum throughout, and peculiar dark 

 glands on the midrib; lower surface densely covered with grey tomentum, 

 obscuring the venation ; stalks short, tomentose. Fruit pyriform, i in. long, 

 with the upper part of the peduncle much thickened. 



A native of the Crimea, Caucasus, and Asia Minor. Introduced in 1800. 



There is a good specimen at Arley Castle, which Elwes found to be 44 ft. 

 by 4 ft. in 191 1. It is forked at two feet from the ground, and bears fruit regularly 

 in some quantity. There is a tree of this species at Glasnevin, which has long 

 been labelled P. sinaica.^ Elwes measured it, in 1908, as 40 ft. by 5 ft. 7 in., 



' p. bucharica, Litwinow, op. cit. i. i8 (1902), described from a sterile branch and said occasionally to have lobed and 

 pinnatifid leaves, appears to be the same species. 



2 Both the specimens at Kew were obtained under the name P. heterophylla, which is a. totally distinct species. 

 Cf. p. 1556. 



' The history of this tree is unknown. P. Pashia is said by Loudon, Arb. ei Frut. Brit. ii. 891 (1838), to have been 

 introduced in 1825 ; but we have seen no specimens except the tree at Kew. 



' Cf. p. 1559, note I. 



