Flower Development and Gametogenesis in Oenothera laciniata Hill

Authors

R. L. Hulbary, State University of IowaFollow
A. Nagaraja Rao, State University of IowaFollow

Document Type

Research

Abstract

Calyx, carpels, stamens, and corolla arise in acropetal succession. The wall of the anther has four layers of cells. The tapetum is binucleate and is of glandular type. Tricolpate pollen grains are triangular in outline and are binucleate at the time of shedding. The cells of the endothecium have spiral thickenings. Development of the ovule is described. The synergids have filiform apparatus with prominent hooks. Pollen tube enters porogamously and destroys one of the synergids during its entry. A hypostase is organized at the chalazal end of the ovule. The present observations are discussed in relation to the previous literature.

Publication Date

1959

Journal Title

Proceedings of the Iowa Academy of Science

Volume

66

Issue

1

First Page

91

Last Page

97

Copyright

©1959 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Recommended Citation

Hulbary, R. L. and Rao, A. Nagaraja (1959) "Flower Development and Gametogenesis in Oenothera laciniata Hill," Proceedings of the Iowa Academy of Science, 66(1), 91-97.
Available at: https://scholarworks.uni.edu/pias/vol66/iss1/11