共 10 条
- [1] Brilliant B, 1924, CR HEBD ACAD SCI, V178, P2122
- [2] CLARK AW, 1919, CONTRIB BOT LAB U PE, V4, P105
- [4] HUME AN, 1920, DAK AGR EXP STA B, V191
- [5] MAXIMOX N, 1921, J RUSS BOT C, V1, P88
- [6] MOLISCH H, 1921, BER DEUT BOT GES, V39, P339
- [7] PFEIFFER T, 1920, LANDW VERS STA, V96, P353
- [9] SHREVE EB, 1924, CARNEGIE I WASH YB, V22, P62