1. Plural of exciple; the outer edge or margin of a lichen thallus, typically distinct in color or texture from the disk.
Usage: technical; mycology/lichenology

Examples

• The exciples of the lichen specimen were clearly visible under the microscope.
• Lichenologists examine the exciples to help identify different lichen species.
• The dark exciples contrasted sharply with the pale disk of the lichen.
• Some lichens have prominent exciples that extend beyond the apothecium.
• The structure and color of the exciples are important diagnostic features in lichen taxonomy.