In the days of our youth it was a stock jibe against the grocer that most of his China tea had been grown on Blackthorn bushes not far from home, and with tea at five or six shillings a pound there may have been some basis of truth for the belief; but with the prices of to-day it may be presumed that Blackthorn leaves would cost the dealer at least as much as real tea-leaves from Assam and Darjeeling. The Bullace (_Prunus communis_, sub-sp. _insititia_) differs from the Sloe in having _brown_ bark, the branches _straight_ and only a few of them ending in spines, the leaves larger, broader, more coarsely toothed, and downy on the underside. The flowers, too, have broader petals, and the fruit--which may be black or yellow--droops, and is between three-quarters and one inch in diameter. In many places where this grows it can only be regarded as an escape from cultivation. The Wild Plum (_Prunus communis_, sub-sp. _domestica_) has also brown bark, its branches straight, and not ending in spines. The downiness noticed on the underside of the Bullace leaves is here restricted to the ribs of the leaf. The fruit attains a diameter of an inch or an inch and a half. Although found occasionally in hedgerows, this sub-species is not indigenous in any part of our islands. Hooker says the only country in which it is really indigenous is Western Asia; but its numerous cultivated forms are widely distributed. It should be noted that the fruits of the Blackthorn and its sub-species are formed within the flower; so are those of the Cherries, to be next described, the ovary being botanically termed "superior," that is, above the base of the calyx and corolla, when the flower is in an erect position. This is a point of some importance when one seeks to understand the different formation of the fruit in so closely related a species as the Apple, in which the ovary is "inferior," or below the flower. Wild Cherries (_Prunus avium_). Nature has been comparatively lavish in the matter of Cherries, for she has bestowed three species upon the British Islands. For the cultivated Cherry it is said that we ought to thank the Romans, as for many other good things in the way of food. Pliny states that we had the Cherry in Britain by the middle of the first century A.D. Evelyn tells us that the Cherry orchards of Kent owe their origin to "the plain industry of one Richard Haines, a printer to Henry VIII.," by whom "the fields and environs of about thirty towns, in Kent only, were planted with fruit trees from Flanders, to the unusual benefit and general improvement of the county to this day." It is probable, however, that our own countrymen had already effected some improvement on the wild sorts by cultivation, for even in the woods some trees are found bearing fruit much larger and of better flavour than usual, and such would be selected for cultivation. [Illustration: _Pl. 94._ Gean in flower.] [Illustration: _Pl. 95._ Flowers of Gean.]