References
- Chaturvedi , M. , Ram , T. and Pal , M. 1993 . Pollen morphology in Chorisia species and their hybrid. . Phytomorphology , 43 : 25 – 28 .
- Echlin , P. and Godwin , H. 1968 . The ultrastructure and ontogeny of pollen in Helleborous foetidus. II Pollen grain development through the callose special wall stage. . J. Cell Sci , 3 : 175 – 186 .
- Erdtman , G. 1952 . Pollen morphology and plant taxonomy, Angiosperms , Stockholm : A & W .
- Godward , M. B. E. and Pell , K. 1994 . Inheritance of exine pattern in Nicotiana×sanderae (Solanaceae). . Bot. J. Linn. Soc , 115 : 145 – 159 .
- Goetz , S. G. 1982 . Segregation of pollen exine features in Hibiscus section Furcaria interspecific hybrids. . Grana , 21 : 21 – 27 .
- Heslop‐Harrison , J. 1964 . “ Cell walls, cell membranes and protoplasmic connections during meiosis and pollen development. ” . In Pollen physiology and fertilization , Edited by: Linskens , H. F . 39 – 47 . Amsterdam : N. Holland Publ. Co .
- Henderson , D. M. 1972 . The hybrid pollen of Meconopsis×cookei. . Grana , 12 : 52 – 56 .
- Quiros , C. F. 1975 . Exine pattern of a hybrid between Lycopersicon esculantum and Solanum pennellii. . J. Heredity , 66 : 45 – 47 .
- Ravi Kumar , C. and Nair , P. K. K. 1986 . Inheritance of exine ornamentation and pollen shape in interspecific tetraploid hybrids of Gloriosa. . Can. J. Bot , 64 : 3134 – 3140 .
- Skvarla , J. J. and Larson , D. A. 1966 . Fine structural studies of Zea mays pollen I: Cell membranes and exine ontogeny. . Am. J. Bot , 53 : 1112 – 1125 .