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Species Q . Narrow-leaved, Crab Tree. (Pyrus Angustifolia.) 
Native of North America, It flowers here in May; and was cultivated in 1750, by Mr. Chris¬ 
topher Gray,* nurseryman at Fulham. 
Species 10. Willow*leaved Crab Tree. (Pyrus Salicifolia.) 
This is a low bushy tree, a fathom or a fathom and half in height, branched very much, and 
shooting up from the root. Trunk seldom more than an inch and half in diameter; with a thin 
brownish ash-coloured bark, and a white, uniform, and very hard wood, polishing like bone. Leaves 
in bundles as it were on the shoots, but scattered alternately on the thorny branches, attenuated into 
the petiole, lanceolate, stiffish, for the most part quite entire, subserrate towards the tip, covered 
with a smooth knap, dusk} 7 green above, glaucous hoary underneath. Stipules none. Stamens about 
seventeen. Fruit solitary or two together, turbinate, subvillose, attenuated into a cylinder at the 
base, rounded above. Seeds in each of the five cells two, ovate-acute, flat on one side, of a yellow- 
testaceous colour. It flowers at the end of April, and perfects its fruit in June; but the fruit is small 
and of no value. 
Native of Siberia, in the sandy desert between the rivers Teree and Cuma, &c. on Caucasus, and 
in Persia, j* Introduced in 1780, by Peter Simon Pallas, M.D.J 
Some modern authors have united to this genus several species of Mespilus and Cratcegus ; but I 
have followed Linnaeus, fully aware that there is no end to these changes in natural orders. 
CULTURE a 
The ripening of Pears may be accelerated by the method of pruning and managing these trees, 
which is greatly improved within the space of a few years past; for if we look into the directions 
which are given by the best writers on this subject, we shall soon discover how little they knew fifty 
years ago, of the true method of pruning and managing most sorts of fruit-trees, scarce one of them 
making any difference in the management of the different kinds of fruit. 
Pears are propagated by budding or grafting them upon stocks of their own kind, which are 
commonly called free stocks, or upon Quince stocks, or Whitethorn, upon all which these fruits will 
take; but the latter sort of stock is now seldom used, because they never keep pace in their growth 
with the fruit budded or grafted upon them; as also because the fruit upon such stocks are com¬ 
monly drier, and more apt to be stony, than when they are upon Pear stocks. Quince stocks are 
greatly used in the nurseries for all sorts of Pears which are designed for dwarfs or walls, in order to 
check the luxuriancy of their growth, so that they may be kept within compass better than upon 
free stocks. But against the general use of these stocks, for all sorts of Pears indifferently, there are 
very great objections: First, Because some sorts of Pears will not thrive upon these stocks, but in 
two or three years decay, or at most will but just keep alive. Secondly, Most of the sorts of hard 
breaking Pears are rendered stony, and good for little; so that whenever any of these sorts are thus 
injudiciously raised, the fruit, although the kind be ever so good, is condemned as good for nothing 
by such as are not well acquainted with it, when the fault is entirely owing to the stock on which it 
* Hort. Kew. 
f Pallas, 
7 C 
J Hort. Kew. 
