R. C.  Ching, ?The Studies of Chinese Ferns-XXXIV?, Bulletin of the Fan Memorial Institute of Biology: Botany, vol. 11, 1941.

R. C.  Ching, ?The Studies of Chinese Ferns-XXXIII?, Bulletin of the Fan Memorial Institute of Biology: Botany, vol. 10, 1940.

R. C.  Ching, ?The Studies of Chinese Ferns-XXXV?, Bulletin of the Fan Memorial Institute of Biology: Botany, vol. 1, 1930.