64 
but have not flowered yet. A mat of these handsome Chinese plants 
can be seen among the other Chinese plants on the southern slope of 
Bussey Hill. If this form retains in cultivation the prostrate stems of 
its present state it may prove an excellent subject for covering the 
ground under trees and shrubs. 
Asiatic Crabapples. Many of these small trees and shrubs are well 
covered with fruit this year. When the whole group is considered few 
plants are more valuable for garden decoration in this climate if atten- 
tion is paid to keeping them free from the scale insects which are de- 
tructive to all plants of the Apple tribe. All the Asiatic Crabs are 
perfectly hardy; they grow quickly in good soil, and many of them be- 
gin to flower and produce fruit when only a few years old. No plants 
are more beautiful at the end of May when they are covered with their 
countless pink and white flowers; and on some of them the fruit is 
showy and long persistent. The original Arboretum collection of these 
plants is on the bank rising from the left-hand side of the Forest Hills 
road, but there is a larger supplementary collection at the eastern base 
of Peter’s Hill. Here will be found nearly every species and many of 
the varieties and hybrids of these plants. A few of the conspicuous 
plants just now are Malus ringo with yellow fruit, interesting as 
the plant from which the Apple cultivated in China has been derived, 
and the only Apple cultivated in Japan until recent years. Malus Jlori- 
bunda and the hybrid raised in the Arboretum from that species, Malus 
Arnoldiana, with yellow fruits are now conspicuous, as are Malus zumi 
and M. Sargentii from Japan with bright scarlet fruit; the latter is the 
only Apple which is shrubby in habit. Interesting, too, is the form of 
the Japanese Malus toringo from northern China with small fruits yel- 
low on some plants and red on others. These are only a few of the 
plants in this large collection which at this time deserve careful study. 
An illustrated guide to the Arboretum containing a map showing the 
position of the different groups of plants has recently been published. It 
will be found useful to persons unfamiliar with the Arboretum. Copies 
of this guide can be obtained at the Administration Building in the 
Arboretum, from the Secretary of the Massachusetts Horticultural 
Society, 300 Massachusetts Avenue, Boston, from The Houghton, 
Mifflin Company, 4 Park Street, Boston, at the Old Corner Bookstore, 
Bromfield Street, Boston, and at the office of the Harvard Alumni Bul- 
letin, 50 State Street, Boston. Price, 30 cents. 
The subscription to these Bulletins is $1.00 per year, payable in 
advance. 
