共 11 条
- [2] BOKE MH, 1941, AM J BOT, V28, P656
- [3] CHAKRAVARTI S C, 1950, Curr Sci, V19, P319
- [4] JOHNSON MARION A., 1951, PHYTOMORPHOLOGY [DELHI], V1, P188
- [5] MAJUMDAR G. P., 1948, PROC INDIAN ACAD SCI SECT B, V28, P83
- [8] Philipson W. R., 1947, JOUR LINN SOC [LONDON] BOT, V53, P187