| Label | Id | |
|---|---|---|
| Brachiella | 468825 | |
| Brachycrotaphus | 2024687 | |
| Brachyglottis | 174468 | |
| Bracoviriform | 2946836 | |
| Bracovirus | 2946836 | |
| Bradya | 298468 | |
| Branhamaceae | 468 | |
| Buccinulum | 128468 | |
| Bunochelis | 1046871 | |
| Caepidium | 134682 | |
| Cailloma | 1544683 | |
| Callioratis | 704681 | |
| Calocybe | 56468 | |
| Campylopodium | 94680 | |
| Campylopus | 94682 |