Australian Tropical Rainforest Plants - Online edition
Click/tap on images to enlarge
![](../../images/features/s_tenth_leaf_oil_dots/char_s36.jpg)
S36 with oil dots visible with a x10 lens
![](../../images/features/s_tenth_leaf_oil_dots/char_s37.jpg)
S37 with no oil dots visible with a x10 lens
The cotyledons are the seedling leaves. They appear above ground in seeds with epigeal germination only. Cotyledon features can be used for these seedlings only.
Oil dots are small translucent dots or cigar-shaped structures which are visible when the cotyledon is held up to the light. Oil dots are readily seen in leaves from citrus trees.
Copyright © CSIRO 2020, all rights reserved.
![](assets/fs_images/logo_print_footer.png)
Web edition hosted at https://apps.lucidcentral.org/rainforest