Africa & Madagascar/Wild
Amsterdam/ Golterman, H.L.; Gore, A.J.P.
Australia/Aston; Huisman; Sainty (4); Romanowski (2); Entwisle; Stephens, K.M., R.M. Dowling.
Brazil/ Hoehne; Kissman; Amaral, M.C.E., Bettrich, V., Faria, A.D., Anderson, L.O., Aona, L.Y.; Bove, C.P. and Paz, J.
British Columbia/Brayshaw (2); Warrington, P.D.
California/Mason; Ditomaso, J.M., E.A. Healy.; Bossard, C.C. Randall, J.M., Hoshovsky, M.C. (eds.)
Canada/Lui, S.K., M. Butler, M. Allen, J. DaSilva, et al; Martin, A.C.; Newmaster, S.G., Harris, A.G., Kershaw, L.J.; Warrington, P.D.
Chesapeake Bay/Hurley
China/Yan
Connecticut/Niering (2), W.A., R.H. Goodwin
Costa Rica/Crow, G.E.
Czech Republic/ Hejny, S., Raspopov, I.M., Kvet, J., Eds.
Florida/Burch; Dressler; Hall (grasses); Hoyer; Ramey (3); Tarver; Wunderlin; Wunderlin; Zomlefer; Tobe; Langeland and Burks; Anonymous; Brown, P.M.; Carlton, J.M.; Chafin, L.G.; Feinsinger, P., M. Minno.; Gilbert, K.M., J.D. Tobe, R.W. Cantrell, M.E. Sweeley, et al.; Hall, D.W., V.V. Vandiver.; Long, R.W., O. Lakela.; Ramey, V.(2)
France/ Fare; Dignard, N., L. Couillard, J. Labrecque, P. Petitclerc, et. al.; Nelson, G.
Germany/ Passarge
Ghana/Hall
Great Britain/Haslam; Preston; Spencer-Jones
Hungary/Tuba; Fintha
Illinois/ Mohlenbrock; Winterringer and Lopinot; Curtis; Curtis, L.; Henry, R.D.
India/ Cook; Biswas, K., C.C. Colder
Idaho/Anonymous; Prather, T.S., S.S. Robins, D.W. Morishita, L.W. Lass, et al.; Cox, S., D. Stafford, S. Rhinger, T. Huttanus
Iowa/Beal
Japan/Kadono
Kansas/Brooks
Louisiana/Chabreck
Maine/Hill, R., S. Williams.
Malta/Haslam, S.M.; Haslam, S.M.; Haslam, S.M., J. Borg.; Haslam, S.M., J. Borg, J.M. Psaila.
Mexico/Bonilla-Barbosa; Lot
Minnesota/Fink; Anonymous; Fink, D.F.
Mississippi/Anonymous
Missouri/Whitley
Netherlands/Cook, C.D.K.; Pot, R.
New England/Crow; Hellquist
New Jersey/Fairbrothers; Schmid (3)
New York/ New York; Beckwith McCloskey, L.; Craft, A.S. ; Lorenzi, H.J., Jeffery, L.S.
New South Wales/Sainty
New Zealand/Coffey and Clayton; Johnson
Nigeria/Obot, E.A., J.S.O. Ayeni.
North America/Lamoureux; McPherson, S.
North Carolina/Beal; Radford, A.E., H.E. Ahles, C.R. Bell
Ohio/Stuckney, R.L.
Oklahoma/ Nelson
Ontario/ Newmaster
Oregon & Washington/Guard; Hook, D.D., McKee, W.H., Smith, H.K., Gregory, J. et al., Eds
Pacific Islands/Stemmermann
Pacific Northwest/Steward
Pakistan/ Ahmad
Papua New Guinea/Leach
Pennsylvania/ Huebner, C.D., Olson, C., Smith, H.C.
Philippines/ Pancho
Portugal/ Catarino, et al.
Rhodesia/Russell, G.E.G.
Russia/ Raspopov; Zhulidov
South Africa/ Henderson; Musil; Henderson, L., C.J. Cilliers.
South America/McPherson, S.
South Carolina/Aulbach-Smith; Radford, A.E., H.E. Ahles, C.R. Bell
Southeast Asia/Moody; Pancho
Taiwan/Yang, Y.P., S.-H. Yen, C.-K. Lin.
Tennessee Valley/Anonymous
Texas/Haukos and Smith; Howells; Correll, D.S., M.C. Johnston; Klussmann, W.G., J.T. Davis

United Kingdom/Child, L.E.; Clapham, A.R., Tutin, T.G., Warburg, E.F.; Lee, R.E.; Lockwood, J.L., Hoopes, M.F., Marchetti, M.P
Washington/ Hamel; Leigh
West Virginia/Bargeron, C.T., C.W. Evans, D.J. Moorhead, K. Douce, et al; Bargeron, C.T., Moorhead, G.K.Douce, R.C. Reardon, et al
United States:

Atlantic & Gulf Coasts/Eleuterius; Craig
Eastern/Pierce; Redington; Stuckey; Tiner
Grasses, Sedges & Rushes/Knobel; Ramey
Great Lakes/ Chadde; Schloesser, D.W.
Great Plains/Larson; Lindstrom, L.E.
Mid-Atlantic/Silberhorn, G.M.
Northeastern/ Borman; ; Magee; Tiner; Tiner; Crow; Huebner, C.D., Olson, C., Smith, H.C.
Southeastern/Eyles; Godfrey & Wooten; Tiner; Miller, J.H.; Ramey, V.(2); Small, J.K.
Southwestern/Correll & Correll
US/Muenscher; Hitchcock, A.S.; Kaufman, S.R., W. Kaufman; Kay, S.H., B. Doll, Eds; Otto, N.E., T.R. Bartley, J.S. Thullen; Palmer, C.M; Reed, C.F.; Tiner, R.W.; Weldon, L.W.

Aquarium Plants: Horst; James; Kasselmann; Muhlberg; Rataj; Scheurmann
Water Gardens: Jurdant; Slocum
Textbooks: Bronmark; Brundu; Caffrey; Crawford; Cronk; Cronk; Elton; Giller; Hemminga; Hogarth; Hutchinson; Keddy; Mitchell; Pieterse; Raghavendra; Riemer; Scheffer; Sculthorpe; Shine; Tiner