Clary sage (Salvia sclarea L., Lamiaceae) showing stalked and sessile secretory glands on the calyx trichomes (Cryo-SEM, magnified 752 times actual size).Photo © Microscopix photolibrary

from the book "Secretory Structures Of Aromatic And Medicinal Plants: A Review And Atlas Of Micrographs" by Katerina Svoboda and Tomas Svoboda, micrographs by Andrew Syred. To pucrchase this book, please click here.