Stewartia rostrata (Stewartia rostrata)

Even showier than S. pseudocamellia as the calyx of the white flower is beet red.

Stewartia koreana (Stewartia pseudocamellia Koreana)

This is close to a perfect tree for the garden: 12-15 ‘, good camellia type flower in early summer, scarlet fall color and peeling bark leaving smooth silky trunk. Zone 6