共 4 条
[1]
DRING DONALD M., 1955, NEW PHYTOL, V54, P277, DOI 10.1111/j.1469-8137.1955.tb06180.x
[2]
GRAM K, 1952, FRIESIA, V5, P257
[3]
JEWELL F. F., 1958, FOREST SCI, V4, P42
[4]
JOHANSEN D. A., 1940, PLANT MICROTECHNIQUE