Types of Florin rings, distributional patterns of epicuticular wax, and their relationships in the genus Pinus
- 1 December 1985
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Botany
- Vol. 63 (12), 2150-2158
- https://doi.org/10.1139/b85-304
Abstract
The shape of Florin rings and the distributional patterns of epicuticular wax of 51 species, including three varieties, in the genus Pinus were observed and classified with a scanning electron microscope. Six types of Florin rings and three types of wax distribution were observed. Florin ring structures and wax distribution correspond to subgenera. The restriction of the epicuticular waxes to the needle surface on which stomatal complexes occur suggests that the wax originates in association with the stomatal complex. In the subgenus Pinus, the Florin ring with a small opening size had little wax in the epistomatal chamber; the Florin ring with a large opening size had large amounts of wax. This suggests that the amount of wax in the epistomatal chamber and the opening size of the Florin ring are correlated with gas diffusion. Common thin, fibrillar wax, rare thick, winding wax, and occasional amorphous wax were observed. The relationships among the types of Florin rings are further discussed from the viewpoint of a developmental process.Keywords
This publication has 5 references indexed in Scilit:
- Scanning electron microscope study of stomatal-complex configuration in CupressaceaeCanadian Journal of Botany, 1983
- In vitro studies on the fine structure of epicuticular leaf wax from Pseudotsuga menziesiiCanadian Journal of Botany, 1981
- Structure and Ontogeny of the Stomatal Complex in Pinus strobus L. and Pinus banksiana LambAmerican Journal of Botany, 1981
- Physiological Effects of Surface WaxesPlant Physiology, 1978
- Seasonal Changes in Leaf Surface Waxes of Picea pungensAmerican Journal of Botany, 1976