Name
- Adeane, Jane Henrietta, OBE1
- Areschoug, Fredrik Wilhelm Christian, Swedish botanist1
- Baillon, Henri Ernest, botanist, physician, 1827-18951
- Baker, John Gilbert, botanist, of Kew Gardens, 1834-19201
- Balfour, Arthur James, 1st Earl of Balfour, Prime Minister and philosopher, 1848-19301
- Balfour, Isaac Bayley, Knight, Professor of Botany, 1853-19221
- Batalin, Aleksandr Fedorovich, Director, Imperial Botanic Garden, St Petersburg, 1847-18961
- Bell, Francis Jeffrey, naturalist1
- Benson, Mary, née Sidgwick wife of Archbishop E W Benson1
- Bertrand, Charles Eugène, French botanist1
- Bertrand, Marcel Alexandre, French geologist1
- Bessey, Charles Edwin, American botanist1
- Birkbeck, Edward, 1st Baronet, politician, 1838-19071
- Birkbeck, Robert, brother of Sir E Birkbeck Baronet1
- Blackwood, Frederick Temple, 1st Marquess of Dufferin and Ava, diplomat, 1826-19021
- Blytt, Axel Gudbrand, Norwegian botanist1
- Boscawen, Evelyn Edward Thomas, 7th Viscount Falmouth, army officer, 1847-19181
- Boulger, George Edward Simonds, naturalist1
- Brightwen, Eliza, naturalist1
- Britten, James, of the British Museum1