| Option ID | Family Name | Notes | Metadata ID |
| 601 | Polytrichaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 602 | Porellaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 603 | Pottiaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 604 | Prionodontaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 605 | Pseudoditrichaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 606 | Pseudolepicoleaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 607 | Pterigynandraceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 608 | Pterobryaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 609 | Ptilidiaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 610 | Ptychomitriaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 611 | Ptychomniaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 612 | Racopilaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 613 | Radulaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 614 | Regmatodontaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 615 | Rhabdoweisiaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 616 | Rhachitheciaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 617 | Rhacocarpaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 618 | Rhizogoniaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 619 | Ricciaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 620 | Riellaceae | Bryophytes (Mosses and liverworts) | 1,594 |