Upper leaf surface of Roman chamomile (Chamaemelum nobile (L.) All., Asteraceae) with sessile secretory glands and non-secretory trichomes (SEM, CPD, magnified 417 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.