1. A transparent, extensible membrane of extreme tenuity, which forms the innermost coating of grains of pollen

Derived forms: intines

• genus Brachycome
• genus Brachystegia
• genus Bradypus
• genus Brama
• genus Branchiobdella
• genus Branta
• genus Brasenia
• genus Brassavola
• genus Brassia
• genus Brassica
• genus Brevoortia
• genus Brickelia
• genus Brodiaea
• genus Bromus
• genus Brontosaurus
• genus Broussonetia
• genus Browallia
• genus Browmius
• genus Bruchus
• genus Bruckenthalia
• genus Brugmansia
• genus Brunfelsia
• genus Brya
• genus Bryanthus
• genus Bryonia