Transpiration

I'm doing coursework for AS Bio and I was wondering if any of you guys can help me. I'm doing mine on the rate of transpiration of the flowers of a plant.
My hypothesis is that it will not contribute to the loss of water b/c flowers do not contain stomata.
How else can I support my hypothesis?

Heat increases the rate of transpiration - you can measure this using a potometer and a heat lamp. If your hypothesis is correct, the rate at which the bubble travels up the potometer will be unaffected when a heat lamp is shone on the flower. You can also examine the flower under a microscope and compare it with that of leaf from the same plant... if it's possible to see stomata under a scope - I'm not totally sure as I haven't done it myself. Alternatively you could compare your potometer results with that of a potometer test conducted using the plant itself with the flowers removed. Not sure what you'd use for a control, though. Hope that helped a bit