共 51 条
- [41] SMITH EF, 1912, USDA BUR PLANT IND B, V255, P1
- [43] SPARROW AH, 1955, RADIAT RES, V3, P349
- [45] SPARROW AH, 1955, 1955 INT C PEAC US A
- [46] SPARROW AH, 1955, 1955 INT C RAD CAMBR
- [47] SPARROW AH, 1954, 8TH P INT C BOT PAR
- [48] WHITAKER THOMAS W., 1934, JOUR ARNOLD ARBORETUM, V15, P144
- [49] WHITE PHILIP R., 1939, AMER JOUR BOT, V26, P59