Exydra
| Exydra Endlicher, Fl. Poson. 119. 1830. | | TYPE: Exydra aquatica (Linnaeus) Endlicher (Poa aquatica Linnaeus) |
Hemibromus
| Hemibromus Steudel, Syn. Pl. Glumac. 1: 317. 1854. | | TYPE: Hemibromus japonicus Steudel |
Hydrochloa
| Hydrochloa Hartman, Gen. Gram. 8. 1819, non Palisot de Beauvois 1812. | | TYPE: Hydrochloa fluitans (Linnaeus) Hartman (Festuca fluitans Linnaeus) Lectotypified by Soreng, in Soreng et al., Contr. U.S. Natl. Herb. 48: 402. 2003. |
Hydropoa
| Hydropoa (Dumortier) Dumortier, Bull. Soc. Roy. Bot. Belgique 7: 67. 1868. | BASIONYM: Poa Linnaeus, sec. Hydropoa Dumortier, Observ. Gramin. Belg. 111. 1824 ("1823"). | TYPE: Hydropoa aquatica (Linnaeus) Fourreau (Poa aquatica Linnaeus) = Exydra Endlicher 1830. |
Nevroloma
| Nevroloma Rafinesque, J. Phys. Chim. Hist. Nat. Arts 89: 106. 1819. | | TYPE: Nevroloma canadensis (Michaux) Rafinesque (Briza canadensis Michaux) |
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