形　態

　栄養芽から花芽への転換の際に茎頂分裂組織がどのように変化するか，ヒルガオ科における花粉の形態上の差異などが調べられている。

文献

1. Murashige, Y. (1965) Ontogeny of the vegetative and reproductive apices in Pharbitis nil Chois. Development of the vegetative apex. Bot. Mag. Tokyo 78: 353-359.
   
2. Murashige, Y. (1965) Ontogeny of the vegetative and reproductive apices in Pharbitis nil Chois. Development of the terminal flower bud. Bot. Mag. Tokyo 78: 397-406.
   
3. Murashige, Y. (1965) Ontogeny of the vegetative and reproductive apices in Pharbitis nil Chois. Development of axillary bud Bot. Mag. Tokyo 78: 407-411.
   
4. Bhar, D.S. and Radforth (1969) Vegetative and reproductive development of shoot apices of Pharbitis nil as influenced by photoperiodism. Canad. J. Bot. 47: 1403-1406.
   
5. Vij, S.P. & Sachdeva (1974) Pollen grain studies in some N. Indian Convolvulaceae. J. Palynogogy 10: 132-144.
   
6. Ueno,J. (1975) The fine structure of pollen surface 　 Convolvulaceae Rep. Fac. Sci., Shizuoka Univ. 10: 119.
   
7. Nishino, Eisho (1976) Developmental anatomy of foliage leaves, bracts, calyx and corolla in Pharbitis nil. Bot. Mag. Tokyo 89:191-209.
   
8. Mikesell, J. & Schroeder, A. (1984) Internal phloem development in Pharbitis nil Chois. (Convolvulaceae). Bot. Gaz. 145: 196-203.