Apiaceae NEBC: 01051655 Hydrocotyle umbellata Michaux USA: Rhode Island South Kingstown: South Kingstown C. B. Hellquist 7555 1973-7-12
Cabombaceae NEBC: 00578678 Cabomba caroliniana A. Gray USA: Massachusetts Orange: Orange C. B. Hellquist 8058 1973-7-25
NEBC: 00578680 Cabomba caroliniana A. Gray USA: Rhode Island Cumberland: Cumberland C. B. Hellquist 7549 1973-7-11
Haloragaceae NEBC: 00580685 Myriophyllum spicatum Linnaeus USA: Massachusetts Pittsfield: Pittsfield C. B. Hellquist 7379 1973-7-2
NEBC: 00580686 Myriophyllum spicatum Linnaeus USA: Massachusetts Pittsfield: Pittsfield C. B. Hellquist 7446 1973-7-2
Hippuridaceae NEBC: 00664958 Hippuris vulgaris Linnaeus USA: Maine Portage Lake: Portage Lake C. B. Hellquist 7867 1973-7-19
NEBC: 00664997 Hippuris vulgaris Linnaeus USA: New Hampshire Pittsburg: Pittsburg C. B. Hellquist 8915 1973-8-26
NEBC: 00664998 Hippuris vulgaris Linnaeus USA: New Hampshire Pittsburg: Pittsburg C. B. Hellquist 8906 1973-8-26
Marsileaceae NEBC: 00579777 Marsilea quadrifolia Linnaeus USA: Massachusetts Egremont: Egremont C. B. Hellquist 7452 1973-7-2
Najadaceae NEBC: 00614155 Najas guadalupensis (Sprengel) Magnus USA: Connecticut Morris: Morris C. B. Hellquist 8585 1973-8-9
Nymphaeaceae NEBC: 00761939 Nymphaea tuberosa Paine USA: Massachusetts Concord: Concord, Sudbury River near Route 2 C. B. Hellquist 9069 1973-9-20
NEBC: 00761941 Nymphaea tuberosa Paine USA: Massachusetts Concord: Concord, Sudbury River near Route 2 C. B. Hellquist 9069A 1973-9-20
NEBC: 00761947 Nymphaea tuberosa Paine USA: Massachusetts Lanesborough: Lanesborough C. B. Hellquist 7389 1973-7-2
Pontederiaceae NEBC: 00700421 Heteranthera dubia MacMillan USA: Vermont Wells: Wells C. B. Hellquist 8198 1973-7-30
NEBC: 00700424 Heteranthera dubia MacMillan USA: Vermont Pownal: Pownal C. B. Hellquist 8957 1973-9-5
NEBC: 00700440 Heteranthera dubia MacMillan USA: Connecticut North Guilford C. B. Hellquist 8502 1973-8-8
Potamogetonaceae NEBC: 00741051 Potamogeton hillii Morong USA: Vermont Pownal: Pownal C. B. Hellquist 8140 1973-7-30
NEBC: 00712111 Potamogeton pusillus tenuissimus Mertens & Koch USA: Maine Mars Hill: Mars Hill C. B. Hellquist 7792 1973-7-19
NEBC: 00700572 Potamogeton pusillus tenuissimus Mertens & Koch USA: Vermont Monkton: Monkton C. B. Hellquist 8187 1973-7-31
NEBC: 00700573 Potamogeton pusillus tenuissimus Mertens & Koch USA: Vermont Leicester: Leicester C. B. Hellquist 8257 1973-8-1
NEBC: 00700594 Potamogeton pusillus tenuissimus Mertens & Koch USA: Vermont North Hero: North Hero C. B. Hellquist 8178 1973-7-31
NEBC: 00700616 Potamogeton pusillus tenuissimus Mertens & Koch USA: Massachusetts Haverhill: Haverhill C. B. Hellquist 1973-9-17
NEBC: 00700737 Potamogeton pusillus tenuissimus Mertens & Koch USA: Massachusetts New Marlborough: New Marlborough C. B. Hellquist 7476 1973-7-2
NEBC: 00700738 Potamogeton pusillus tenuissimus Mertens & Koch USA: Massachusetts Pittsfield: Pittsfield C. B. Hellquist 7441 1973-7-2
NEBC: 00700739 Potamogeton pusillus tenuissimus Mertens & Koch USA: Massachusetts Richmond: Richmond C. B. Hellquist 7235 1973-6-15
NEBC: 00712195 Potamogeton pusillus tenuissimus Mertens & Koch USA: Rhode Island Westerly: Westerly C. B. Hellquist 7592 1973-7-12
NEBC: 00712196 Potamogeton pusillus tenuissimus Mertens & Koch USA: Rhode Island South Kingstown: South Kingstown C. B. Hellquist 7610 1973-7-12
NEBC: 00712217 Potamogeton pusillus tenuissimus Mertens & Koch USA: Connecticut Middlefield: Middlefield C. B. Hellquist 8549 1973-8-8
NEBC: 00712218 Potamogeton pusillus tenuissimus Mertens & Koch USA: Connecticut Middlefield: Middlefield C. B. Hellquist 8549 1973-8-8
NEBC: 00712232 Potamogeton pusillus tenuissimus Mertens & Koch USA: Connecticut Sharon: Sharon C. B. Hellquist 7254 1973-6-15
NEBC: 00741134 Stuckenia filiformis alpina (Blytt) Haynes, D.H. Les & M. Kral USA: Maine Fort Fairfield: Fort Fairfield C. B. Hellquist 7734 1973-7-18
NEBC: 00741140 Stuckenia filiformis alpina (Blytt) Haynes, D.H. Les & M. Kral USA: Maine Washburn: Washburn C. B. Hellquist 4666 1973-7-17
NEBC: 00741144 Stuckenia filiformis alpina (Blytt) Haynes, D.H. Les & M. Kral USA: Vermont Peacham: Peacham C. B. Hellquist 8436 1973-8-5
NEBC: 00741145 Stuckenia filiformis alpina (Blytt) Haynes, D.H. Les & M. Kral USA: Vermont Peacham: Peacham C. B. Hellquist 8426 1973-8-5
NEBC: 00741146 Stuckenia filiformis alpina (Blytt) Haynes, D.H. Les & M. Kral USA: Vermont Peacham: Peacham C. B. Hellquist 8455 1973-8-5
NEBC: 00741147 Stuckenia filiformis alpina (Blytt) Haynes, D.H. Les & M. Kral USA: Vermont Peacham: Peacham C. B. Hellquist 8431 1973-8-5
NEBC: 00741148 Stuckenia filiformis alpina (Blytt) Haynes, D.H. Les & M. Kral USA: Vermont Barnet: Barnet C. B. Hellquist 8726 1973-8-23
NEBC: 00741152 Stuckenia filiformis occidentalis (J.W. Robbins) Haynes, D.H. Les & M. Kral USA: Maine Mars Hill: Mars Hill C. B. Hellquist 7801 1973-7-18
Ranunculaceae NEBC: 00692657 Ranunculus longirostris Godron USA: Massachusetts Pittsfield: Pittsfield C. B. Hellquist 7371 1973-7-2
Sparganiaceae NEBC: 00741287 Sparganium natans Linnaeus USA: Maine Presque Isle: Presque Isle C. B. Hellquist 4676 1973-7-17
