Rare Plant Register for Huntingdonshire - Botanical Society of the ...
Rare Plant Register for Huntingdonshire - Botanical Society of the ...
Rare Plant Register for Huntingdonshire - Botanical Society of the ...
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natural woodlands. Where this species occurs with Primrose (Primula vulgaris) <strong>the</strong> two<br />
species are highly inter-fertile, producing a hybrid swarm <strong>of</strong> <strong>the</strong> next taxon (Taylor & Woodell,<br />
2008). The population present in Wennington Wood is <strong>of</strong> introduced origin.<br />
Primula x digenea A. Kerner<br />
Primula elatior x Primula vulgaris<br />
National Status: Nationally Scarce County Status: <strong>Rare</strong> (3 sites, 4 tetrads)<br />
Site Grid Reference Last Record<br />
Gamlingay Wood, Hazelcr<strong>of</strong>t TL24075366 2009 (DB)<br />
Waresley Wood SSSI TL2554<br />
68<br />
TL2654<br />
2008 (DB)<br />
2008 (DB)<br />
Wennington Wood TL2478 2004 (PB)<br />
This hybrid is fertile and gives rise to hybrid swarms wherever both parents occur toge<strong>the</strong>r<br />
(Taylor & Woodell, 2008). On this basis this hybrid fails <strong>the</strong> criteria set out in Section 2. It has<br />
been included in <strong>the</strong> <strong>Register</strong> because it can only be found at those few sites where both <strong>of</strong><br />
<strong>the</strong> parent species, one <strong>of</strong> which is nationally scarce, occur toge<strong>the</strong>r. The population in<br />
Wennington Wood has arisen in situ but one <strong>of</strong> its parents, Primula elatior, is an introduction<br />
at this site.<br />
Pyrus pyraster (L.) Burgsd. ssp. pyraster<br />
Wild Pear<br />
National Status: Not scarce, not threatened County Status: <strong>Rare</strong> (3 sites, 3 tetrads)<br />
Site Grid Reference Last Record<br />
Archer’s Wood Nature Reserve TL1781 2003 (AR)<br />
Monks Wood SSSI TL201808 2009 (DB)<br />
Old Weston TL097784 2010 (KR)<br />
A very rare tree, usually present as singletons, <strong>of</strong> ancient boulder clay woodlands and old<br />
hedgerows. It is easily over-looked and when not in fruit is difficult to distinguish from Pyrus<br />
communis. Regardless <strong>of</strong> <strong>the</strong>se difficulties <strong>the</strong>re is no reason to doubt that it is genuinely rare.<br />
There is a fine mature specimen at <strong>the</strong> nor<strong>the</strong>ast entrance into Monks Wood. Recently I have<br />
seen this species planted in a young Stewardship plantation at Covington.<br />
Ranunculus fluitans Lam.<br />
River Water-crowfoot<br />
National Status: Not scarce, not threatened County Status: Scarce (5 sites, 6 tetrads)<br />
Site Grid Reference Last Record<br />
Elton, River Nene TL0893<br />
TL0894<br />
2008 (DB)<br />
2008 (DB)<br />
Ferry Meadows, River Nene (CP) TL1498 2008 (DB)<br />
Houghton Meadow, River Great Ouse TL28787153 2010 (DB)