I've studied your photos (really enlarged them) but can't see the sessile glands. I think I am not looking for the correct thing...are the sessile glands stalked? Or are they just little dots flat on the stem? TIA!
Thanks for the info on the perennial Byblis too. Hmmm...I've got to think of something since there is no cooler weather here. We are hot and dry, hot and terribly humid or warm and wet. LOL
My understanding of the term 'sessile' used botanically is that it means 'stalkless' and that 'sessile glands' occur on the surface rather than above it. I apologize if this isn't much help. I would suggest a Byblis leaf under a dissecting microscope might be the best way to view the sessile glands. I've never seen them in my plants either.