| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Ottelia brasiliensis (G.Planch.) Walp. | E. Hassler 4472 | Paraguay. Sierra de Maracayú. | 424143 | ||
| Najas guadalupensis var. muenscheri (R.T.Clausen) R.R.Haynes | H. D. House 25065 31 Aug 1937 | United States of America. New York. Ulster Co. Hudson River near mouth of Esopus Creek, Saugerties. | 334971 |  | |
| Najas guadalupensis var. muenscheri (R.T.Clausen) R.R.Haynes | H. D. House 25185 08 Sep 1937 | United States of America. New York. Greene Co. Shallow water in Hudson River at Coxsackie. | 334970 |  | |
| Philotria linearis Rydb. | A. Gattinger s.n. s.d. | United States of America. Tennessee. Davidson Co. Nashville. | possible isotype | 327565 |  |
| Philotria linearis Rydb. | A. Gattinger s.n. s.d. | United States of America. Tennessee. Davidson Co. Swamps bordering on Cumberland River, vicinity of Nashville. | holotype | 327566 |  |
| Philotria linearis Rydb. | A. Gattinger s.n. s.d. | United States of America. Tennessee. Davidson Co. Ponds near Nashville. | possible isotype | 327567 |  |
| Najas major var. recurvata Morong | Collector unspecified s.n. 09 Oct 1880 | United States of America. New York. Seneca Co. Black Lake in Cayuga Marshes. [Inferred county from precise loc.]. | holotype | 307462 |  |
| Najas filifolia R.R.Haynes | R. R. Haynes 8719 19 Jul 1984 | United States of America. Florida. Leon Co. Lake Jackson ca. 150 m off U.S. 27 Causeway; ca. 8 mi. NW of Tallahassee. | holotype | 307456 |  |
| Najas major var. gracilis Morong | A. H. Curtiss 2705 July | United States of America. Florida. Palm Creek, near Cape Romano. | holotype | 307459 |  |
| Najas major var. gracilis Morong | A. H. Curtiss 2705 July | United States of America. Florida. Palm Creek, near Cape Romano. | isotype | 307460 |  |
| Najas major var. gracilis Morong | A. H. Curtiss 2705 July | United States of America. Florida. Palm Creek, near Cape Romano. | isotype | 307461 |  |
| Egeria densa Planch. | R. R. Haynes 8266 26 Feb 1981 | Nicaragua. Matagalpa. Small pond on Hotel Selva Grounds at la Hamonia ca. 7 3/4 km due N of Matagalpa. | 424138 | ||
| Elodea canadensis Michx. | W. M. Canby s.n. s.d. | United States of America. Delaware. New Castle Co. Streams near Wilmington. | 327568 |  | |
| Najas multidentata W.Koch | W. A. Schipp 991 08 Aug 1932 | Belize. "Forest Home," Punta Gorda. | isotype | 307465 |  |
| Vallisneria neotropicalis Vict. | J. L. C. Marie-Victorin 19552 with Bro. León, Bro. Alain & L.-R. Rivas, 23 Feb 1941 | Cuba. Provincia de Santa Clara: Ciénaga de Zapata: Río Negro. | isotype | 60275 |  |
| Hydrilla wightii G.Planch. | R. Wight s.n. s.d. | India. Peninsula Ind. or. | probable isotype | 327561 |  |
| Hydrilla wightii G.Planch. | R. Wight s.n. s.d. | India. Peninsula Ind. or. | probable isotype | 327562 |  |
| Apalanthe granatensis (Humb. & Bonpl.) G.Planch. | H. L. Clark 6567 23 Mar 1978 | Venezuela. Amazonas. San Carlos de Rio Negro, ca. 20 km S of confluence of Rio Negro and Brazo Casiquiare. | 424131 | ||
| Hydrilla verticillata C.Presl | W. Nanakorn 91025 with H. T. Beck, 11 May 1991 | Thailand. Ayuthaya. | 41771 | ||
| Elodea ioensis Wylie | R. B. Wylie s.n. 1911 | United States of America. Iowa. Dickinson Co. East Okoboji Lake. | lectotype | 327554 |  |