"Botany Puns V" joke

1. What do botanists give electronically to show their love?
E-roses.
2. What do botanists wear on Mars?
A Spathe suit.
3. What does a successively layered animal need to breathe?
Exogen.
4. What is it called when you blackmail a flower?
Extrorsion.
5. Why are plant growths so upseting?
They have gall.
6. What is a service offered by the phone company to botanists?
Gall waiting.
7. How are seeds like bacteria?
They are both germs.
8. He so gibbous, and he so takeous.
9. How was the botanist able to recognize the nut?
At a glans.
10. Is a botanist a grafter??