| Option ID | Family Name | Notes | Metadata ID |
| 561 | Leskeaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 562 | Leucodontaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 563 | Leucomiaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 564 | Lophocoleaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 565 | Lophoziaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 566 | Lunulariaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 567 | Makinoaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 568 | Marchantiaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 569 | Mastigophoraceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 570 | Meesiaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 571 | Mesoptychiaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 572 | Meteoriaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 573 | Metzgeriaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 574 | Microtheciellaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 575 | Mitteniaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 576 | Mizutaniaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 577 | Mniaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 578 | Monocarpaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 579 | Monocleaceae | Bryophytes (Mosses and liverworts) | 1,594 |
| 580 | Monosoleniaceae | Bryophytes (Mosses and liverworts) | 1,594 |