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Potamogeton perfoliatus x crispus = P. x cooperi (Fryer) Fryer "Cooper's Pondweed"

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**Search results, herbarium specimens**
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	taxon	locality	collectors		date	institution
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	Potamogeton perfoliatus x crispus = P. x cooperi	Cultivated	Alfred Fryer	Charles Bailey	27/8/1891	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	Cultivated	Alfred Fryer	Charles Bailey	22/8/1891	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	Cultivated	Alfred Fryer	Alfred Fryer Charles Bailey	31/8/1892	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC20 Hertfordshire, Grand Union Canal at Little Tring	George Taylor	The British Museum	2/8/1939	BIRM
+	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC20 Hertfordshire, Grand Union Canal at Little Tring	G Taylor		2/8/1939	BIRM
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC20 Hertfordshire, Tring	James Edgar Dandy	The British Museum	14/8/1949	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC24 Buckinghamshire, Marsworth, Startop's End	James Edgar Dandy Job Edward Lousley		17/6/1944	SLBI
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC29 Cambridgeshire, Parson Ware Drove, Benwick	Alfred Fryer Christopher Robert Billups	Alfred Fryer Charles Bailey	28/7/1892	MANCH
+	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC29 Cambridgeshire, Parson Ware Drove, Benwick	Alfred Fryer		28/7/1892	BIRM
+	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC29 Cambridgeshire, Parson Ware Drove, Benwick	Alfred Fryer		22/8/1892	BIRM
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC29 Cambridgeshire, Parson Ware Drove, Benwick	Alfred Fryer	Botanical Exchange Club of The British Isles Augustin Ley	28/7/1892	BIRM
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC29 Cambridgeshire, Parson Ware Drove, Benwick	Alfred Fryer	Augustin Ley	22/8/1892	BIRM
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC39 Staffordshire, Lichfield	Job Edward Lousley	Job Edward Lousley	7/1949	SLBI
+	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC55 Leicestershire, Grand Union Canal at Loughborough	E F Cooper		8/1891	BIRM
+	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC55 Leicestershire, Grand Union Canal at Loughborough	Albert Bruce Jackson		8/1898	BIRM
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC55 Leicestershire, Loughborough	Albert Bruce Jackson	Botanical Exchange Club of The British Isles Albert Bruce Jackson Charles Bailey	8/1898	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC55 Leicestershire, Loughborough	Frederick Thompson Mott	Charles Bailey Frederick Thompson Mott Thomas Thorp	24/7/1890	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC55 Leicestershire, Loughborough	Albert Bruce Jackson	Botanical Exchange Club of The British Isles Charles Bailey	8/1898	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC55 Leicestershire, Loughborough	Albert Bruce Jackson	Albert Bruce Jackson Charles Bailey	8/1898	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC55 Leicestershire, Loughborough	Edgar Franklin Cooper	Charles Bailey	4/8/1890	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC55 Leicestershire, Loughborough	Edgar Franklin Cooper	Botanical Exchange Club of The British Isles Charles Bailey	8/1891	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC55 Leicestershire, Loughborough	Edgar Franklin Cooper	Alfred Fryer Frederick Thompson Mott Charles Bailey	7/1885	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC55 Leicestershire, Loughborough	Edgar Franklin Cooper	Alfred Fryer Charles Bailey	7/1885	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC55 Leicestershire, Loughborough	Edgar Franklin Cooper	Botanical Exchange Club of The British Isles	8/7/1892	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC55 Leicestershire, Loughborough	Alfred Fryer	Charles Bailey Edgar Franklin Cooper	11/9/1890	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC55 Leicestershire, Loughborough	Edgar Franklin Cooper	Alfred Fryer Charles Bailey	23/7/1897	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC55 Leicestershire, Loughborough	Alfred Fryer E F Cooper	Botanical Exchange Club of The British Isles Augustin Ley	8/1891	BIRM
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC55 Leicestershire, Loughborough	Albert Bruce Jackson	Botanical Exchange Club of The British Isles Albert Bruce Jackson Augustin Ley	8/1898	BIRM
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC55 Leicestershire, Loughborough Canal	Albert Bruce Jackson	Botanical Exchange Club of The British Isles	8/1898	ABS
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC55 Leicestershire, Quorndon	Frances Louisa Foord-Kelcey	Botanical Exchange Club of The British Isles Manchester Museum Charles Bailey	19/8/1907	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC56 Nottinghamshire, East Retford	George Taylor		10/7/1946	SLBI
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC56 Nottinghamshire, Gringley on the Hill	George Taylor		7/6/1944	SLBI
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC56 Nottinghamshire, Wiseton,Drakeholes	George Taylor		2/8/1941	MANCH
+	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC57 Derbyshire, Derby	William Richardson Linton		20/8/1900	BIRM
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC57 Derbyshire, Ockbrook	Alexander Cossart Hasse	Alexander Cossart Hasse	6/1884	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC57 Derbyshire, Shirley Cultivated	William Richardson Linton	Botanical Exchange Club of The British Isles Augustin Ley William Richardson Linton	20/8/1900	BIRM
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC58 Cheshire, Chester	Christopher Robert Billups	Charles Bailey	11/9/1891	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC58 Cheshire, Chester	Christopher Robert Billups	Alfred Fryer Charles Bailey	24/7/1897	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC58 Cheshire, Chester	Christopher Robert Billups	Charles Bailey	24/7/1897	MANCH
	Potamogeton perfoliatus x crispus = P. x cooperi	GB, VC58 Cheshire, Chester Cultivated	Alfred Fryer	Charles Bailey	29/7/1890 to 4/8/1890	MANCH

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