Foreign Pollen in the Ovules of Ginkgo and of Fossil Plants
โ Scribed by Birbal Sahni
- Book ID
- 124967628
- Publisher
- John Wiley and Sons
- Year
- 1915
- Tongue
- English
- Weight
- 821 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0028-646X
- DOI
- 10.2307/2427393
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
The ovary of Pelargonium species is composed of 5 carpels, each of which contains 2 ovules. Usually, one of the two ovules develops and the other shrivels. The developed ovule is either on the upper side or on the lower side in the carpel. Intervarietal or interspecific difference was observed with
Pollen tubes of spinach, while growing in the styles, produce branches . In the ovules and the surrounding tissue, at later stages, they grow like fungus mycelium and ramify in all directions . Haustoria-like structures are produced from the pollen tubes near the micropyle of the ovule . These struc