mature fruits. There is a single- and a double-flowered 
variety, and a sport producing flowers with several pistils, 
instead of only one, gave rise to the creation of a distinct 
genus, Amygdalopsis, Carriére. 
From Maximowicz’s observations it appears that it is 
also somewhat variable in the amount and persistence of 
the tomentum of the leaves, and in the shape and size of 
the fruits. This is, as far as the hairiness is concerned, 
certainly supported by the specimens in the Kew Her- 
barium. 
P. Petzoldii, Koch, seems to be a state of P. triloba, 
distinguished by a hard, bony, and more rugose stone, 
and, in this character, probably represents the wild stock. 
The plant figured here was raised at Kew from seed 
received in 1890 from Prof. Sargent, Arnold Arboretum, 
- Harvard, who in turn had grown his specimens from seed 
communicated to him by Dr. Bretschneider, then at 
Peking. The double-flowered form has long been cul- 
tivated at Kew on a south wall, where it is a striking 
object when in flower. The secret of this is to cut it in 
hard immediately the flowers have faded. : 
Descr.—A shrub or small tree, flowering before the 
leaves. Branches of two kinds, either elongated, glabrous, 
rarely slightly pubescent at the tip, covered with a dark- 
brown bark, or very much shortened, and bearing a 
fascicle of leaves. Leaves obovate, ovate, or elliptic-lan- 
ceolate, rarely slightly three-lobed, acute at both ends, or 
with acuminate tips, simply or doubly and sharply serrate, 
one to two inches long, three-quarters broad, rather thin 
when mature, adpressedly hairy, particularly on the nerves 
below, when young, usually soon glabrescent, and some- 
times ultimately almost entirely glabrous ; petioles slender, 
about a quarter of an inch long; stipules subulate or 
filiform, often bifid, about a quarter of an inch long, 
persistent. Flowers solitary, scattered along the elongated 
branches, or here and there clustered, pedicelled ; pedicels 
very short, or lengthening out to nearly half an inch. Re- 
ceptacle semi-globose, glabrous outside. Sepals ovate, ob- 
tuse, almost 1 lin. long, glabrous. Petals pink, suborbicular, 
minutely clawed, about half an inch long. Stamens over 
30. Ovary covered with white tomentum; style glabrous, 
about a quarter of an inchlong. Drupe subglobose, about 
