1、 Difference in shape

Cryptomeria fortunei is a tall tree, which can grow up to 48 meters. The bark is reddish brown, fibrous, and the large branches are nearly whorled, flat or oblique. Branchlets usually droop and are green

Chinese fir is slightly shorter than the former, about 30 meters high. The bark is grayish brown and usually splits and strips fall off. The large branches are flat, and the branchlets are almost opposite, green

2、 Difference between cones

The cones of Cryptomeria fortunei are oblate or spherical, with a diameter of about 1.2-2 cm. There are about 20 seed scales, and there will be a triangular separated bract scale tip in the middle or middle and lower part of the scale back. The seed is brown in color and nearly oval in shape

The cone shape of Cunninghamia lanceolata is oval, which is larger than the former, with a diameter of about 3-4 cm. The tip will have a hard spiny tip and serrated edges. The seed color is dark brown, rectangular round or long oval