32 
on short lateral branchlets of the year, and do not open until the leaves 
are nearly fully grown. It has been found in the Arboretum that the 
plant grows best in partial shade in moist but well drained soil. There 
are several other species of Neillia in the Arboretum collection. None 
of them, however, have any value as garden plants in this climate. 
Some of them are killed to the ground nearly every year and the flowers 
of others are inconspicuous. Neillia sinensis, however, is a garden 
plant of so much value that it seems destined to become popular as 
soon as it is better known. 
Crataegus Canbyi is now well established in the Peter’s Hill collec¬ 
tion of American Hawthorns and is now covered with flowers. It is a 
native of Newcastle County, Delaware, and has been found on the 
shores of Chesapeake Bay, near Perrysville, Cecil County, Maryland, 
and occasionally in eastern Pennsylvania. It is a tree sometimes twenty 
feet high with a trunk up to eighteen inches in diameter, and long, 
spreading branches which form an open head which is occasionally from 
thirty to thirty-five feet in diameter. The leaves are pointed, dark 
green, lustrous, and nearly fully grown when the flowers open;- these 
have usually ten stamens and small rose-colored anthers. The fruit, 
which ripens in October, and does not fall from the branches until after 
the beginning of winter is short-oblong, dark crimson in color and very 
lustrous. Crataegus Canbyi is one of the handsome species of the 
great Crus-galli group which is distributed in many forms from the 
valley of the St. Lawrence River to the shores of the Gulf of Mexico, 
in western Florida, and westward to the borders of the Great Plains 
in Kansas, Oklahoma and Texas. This tree is named for the late Wil¬ 
liam M. Canby, of Wilmington, Delaware, one of the most industrious 
and intelligent of the collectors and students of the North American 
flora, by whom it was first distinguished in his careful investigations of 
the Hawthorns of his native state. 
Malus transitoria which is still covered with flowers is the last of 
the Asiatic Crabapples to bloom in the Arboretum. It was discovered 
by William Purdom in the Chinese Province of Shensi, and as it grows 
here is a large round topped shrub as broad as high, and not a tree. 
The flowers are more or less deeply tinged with rose color as the buds 
open but the petals become pure white. The fruit is ellipsoidal in shape, 
rose-pink, darker on one side than on the other, very lustrous, and about 
three quarters of an inch long. Mains transitoria which when covered 
with flowers as it is this year is a handsome plant; it has, too, a special 
value in prolonging the flowering period of the Asiatic Crabapples, 
among which are found some of the most beautiful flowering trees 
which can be successfully grown in New England. 
Aesculus carnea. Two forms of this tree, the so-called red-flowered 
Horsechestnut, now attract much attention in the Arboretum; they 
are the var. Briotii, with scarlet flowers, and the var. plantierensis, 
with large clusters of pale pink flowers marked with red at the base 
of the petals. This was raised several years ago in a French nursery 
and is sometimes believed to be a hybrid of the European A. Hippo- 
castanum and A. carnea. Whatever its parentage it is when in flower 
one of the most distinct and beautiful of all the Horsechestnuts. 
