1. A source of the dye archil and of litmus
   - roccella

Type of: lichen

Part of: genus Roccella

• Alexandria senna
• Alexandrian
• Alexandrian laurel
• Alexandrian senna
• Alexandrine
• alexandrite
• alexia
• alexic
• Alexis Carrel
• Alexis Charles Henri Maurice de Tocqueville
• Alexis de Tocqueville
• alexithymia
• Aleyrodes
• Aleyrodidae
• alfalfa
• alfalfa sprout
• alfilaria
• alfileria
• Alfonso Borgia
• Alfred
• Alfred Alistair Cooke
• Alfred Bernhard Nobel
• Alfred Binet
• Alfred Charles Kinsey
• Alfred Charles William Harmsworth