White Flowered Japanese Cherry Trees
Prunus Umineko
An upright flowing cherry with large single white flowers about 1¼ inches wide in stalked umbels which come together with new green leaves in mid to late April. The flowers have pink stamens which become more pronounced as the flower ages. The regular upright habit makes this a good avenue tree.

Prunus Umineko is a cross between Prunus Speciosa, Oshima Cherry and Prunus Incisa, Fuji Cherry, raised by Collingwood Ingram in the 1920’s, The same cross was made in Holland by Mr Doorenbos and this has produced an almost identical tree, named ‘Snow Goose’.
Rather picturesquely Umineko is the Japanese name for ‘White-tailed sea-eagle’
The ‘Umineko no Naku Koro ni’ visual novel series features an extensive cast of characters created and originally illustrated by Ryukishi07. The series takes place on the fictional secluded island Rokkenjima in Japan.
Prunus Tai Haku
Flowering at the same time as Prunus Umineko, Prunus Tai Haku, known as the Great White Cherry also has single white flowers, however the flowers are much larger, 2½ inches across and pure white.

Prunus Tai Haku is a vigorous wide spreading tree from Kyoto which became extinct in Japan and was reintroduced from a single specimen found in a Sussex Garden.
As always comments and questions are welcome.
Simon