| ID | Symbol | Scientific | Common | Family |
| 7509 | ASTER4 | Asterella P. Beauv. nom. cons. | | Aytoniaceae |
| 7510 | ASBO9 | Asterella bolanderi (Austin) Underw. | | Aytoniaceae |
| 7511 | ASCA40 | Asterella californica (Hampe) Underw. | | Aytoniaceae |
| 7512 | ASEC3 | Asterella echinella (Gottsche) Underw. | | Aytoniaceae |
| 7513 | ASGR15 | Asterella gracilis (F. Weber) Underw. | | Aytoniaceae |
| 7514 | ASLI13 | Asterella lindenbergiana (Corda) Lindb. | | Aytoniaceae |
| 7515 | ASPA34 | Asterella palmeri (Austin) Underw. | | Aytoniaceae |
| 7516 | ASSA18 | Asterella saccata (Wahl.) A. Evans | | Aytoniaceae |
| 7517 | ASTE20 | Asterella tenella (L.) P. Beauv. | | Aytoniaceae |
| 23421 | CRYPT9 | Cryptomitrium Austin ex Underw. | | Aytoniaceae |
| 23422 | CRTE11 | Cryptomitrium tenerum (Hook.) Austin ex Underw. | | Aytoniaceae |
| 51907 | MANNI | Mannia Opiz nom. cons. | | Aytoniaceae |
| 51908 | MACA28 | Mannia californica (Gottsche ex Underw.) L. C. Wheeler | | Aytoniaceae |
| 51909 | MAFR10 | Mannia fragrans (Balb.) Frye & L. Clark | | Aytoniaceae |
| 51910 | MAPA23 | Mannia paradoxa R. M. Schust. | | Aytoniaceae |
| 51911 | MAPI9 | Mannia pilosa (Hornem.) Frye & L. Clark | | Aytoniaceae |
| 51912 | MASI12 | Mannia sibirica (M?ll. Frib.) Frye & L. Clark | | Aytoniaceae |
| 51913 | MATR8 | Mannia triandra (Scop.) Grolle | | Aytoniaceae |
| 64561 | PLAGI4 | Plagiochasma Lehm. & Lindenb. nom. cons. | | Aytoniaceae |
| 64562 | PLCR4 | Plagiochasma crenulatum Gottsche | | Aytoniaceae |
| 64563 | PLCU6 | Plagiochasma cuneatum A. Evans | | Aytoniaceae |
| 64564 | PLIN12 | Plagiochasma intermedium Lindenb. & Gottsche | | Aytoniaceae |
| 64565 | PLLA11 | Plagiochasma landii A. Evans | | Aytoniaceae |
| 64566 | PLRU7 | Plagiochasma rupestre (J. R. Forst. & G. Forst.) Steph. | | Aytoniaceae |
| 64567 | PLWR3 | Plagiochasma wrightii Sull. | | Aytoniaceae |
| 70695 | REBOU | Reboulia Raddi nom. cons. | | Aytoniaceae |
| 70696 | REHE | Reboulia hemisphaerica (L.) Raddi | | Aytoniaceae |
| 70697 | REHEA | Reboulia hemisphaerica (L.) Raddi ssp. acrogyna (R. M. Schust.) R. M. Schust. | | Aytoniaceae |
| 70698 | REHEA2 | Reboulia hemisphaerica (L.) Raddi ssp. australis R. M. Schust. | | Aytoniaceae |
| 70699 | REHED | Reboulia hemisphaerica (L.) Raddi ssp. dioica R. M. Schust. | | Aytoniaceae |
| 70700 | REHEH | Reboulia hemisphaerica (L.) Raddi ssp. hemisphaerica | | Aytoniaceae |
