| Answer | Crossword Clue |
|---|---|
| EXINE | Outer coat of a pollen grain |
| exines | the outer coat of a spore, esp. a pollen grain |
| extines | the outer coat of a spore, esp. a pollen grain |
| extine | the outer coat of a spore, esp. a pollen grain |
| exine | the outer coat of a spore, esp. a pollen grain |
| sporopollenins | inert, tough polymer forming the resistant outer coat of a pollen grain or spore |
| intines | the inner coat of a spore, esp. a pollen grain |
| intine | the inner coat of a spore, esp. a pollen grain |
