4 
the Chinese M. denudata, more often called M. conspicua, and its hy- 
brids, have been uninjured by winter cold or April frost and are bloom- 
ing well this year with the exception of M. Kobus and its variety 
which, never very free with their flowers, are less prolific than usual 
this year. The plants of the Japanese M. salicifolia, which has never 
succeeded in the Arboretum by which it was first introduced into culti- 
vation, appear to have been killed outright this winter. 
Corylopsis. All the species of this genus of shrubs of the Witch 
Hazel Family cultivated in the Arboretum have survived the winter 
with little or no loss of wood, but the flower-buds of the Chinese C. 
Veitchiana and C. Willmottae^ and of the Japanese C. paucijiora and 
C. epicata have been killed by the cold, and the only species which 
has flowered is C. Gotoana of the elevated region of central Japan. 
This is evidently the hardiest of the plants of this genus, and as it 
has now flowered in the Arboretum every spring for several years 
there is good reason to hope that we have here an important shrub 
for the decoration of northern gardens. The flowers are produced in 
drooping spikes and open before the leaves appear, as in the other 
species, and are of a delicate canary-yellow color and pleasantly fra- 
grant. The best specimen in the Arboretum can be seen on the left- 
hand side of Hickory Path near Centre Street. 
Prinsepia sinensis is a tall Chinese shrub with stem and branches 
armed with many spines, bright green leaves which unfold as early as 
those of any other plant in the Arboretum, and bright yellow flowers 
about two- thirds of an inch in diameter in few-flowered axillary clusters. 
The large specimen on the right-hand side of Hickory Path near Centre 
Street is now covered with flowers and nearly fully grown leaves. 
There can be no question of the hardiness of this shrub or of its ability 
to flower under any climatic conditions it may have to meet in Massa- 
chusetts. It will perhaps be found that it will prove to be as good a 
hedge plant as can be used in this part of the country. Unfortunately 
the Arboretum plants have not yet produced more than an occasional 
seed, and as Prinsepia is not easy to increase from cuttings it has 
remained exceedingly rare. 
Maddenia hypoleuca. This interesting shrub which flowered last 
year in the Arboretum for the first time in America and was described 
in the Bulletin of May 8th, came through the winter without injury on 
the southern slope of Bussey Hill and was in full bloom this year on 
the 18th of April. It is related to the Rum or Choke Cherries, but the 
flowers are without petals and are not conspicuous. 
Cherries and Plums. This is a good season for many of these 
plants. Among the Cherries Prunus tomentosa and the single-flowered 
form of P. triloba from northern China are already in bloom. The 
trees of the Sargent Cherry [Prunus serrulata var. sachalinensis) have 
never been more covered with their pink and rose-colored flowers, and 
the Japanese Spring Cherry (P. subhirtella) which has been described 
as the the most floriferous and perhaps the most delightful of the 
Japanese Cherries, is just opening its countless flower-buds. 
