Rare Plant Register for Huntingdonshire - Botanical Society of the ...

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Monks Wood, field south of TL194793 2004 (TW) A rare constituent of remnant old grassland on the boulder clay. Polypodium interjectum Shivas Intermediate Polypody National Status: Not scarce, not threatened County Status: Rare (2 sites, 2 tetrads) Site Grid Reference Last Record Brampton Wood SSSI TL17677036 Monks Wood SSSI, boundary Compartments 27 and 30 64 TL17787024 TL17807022 2011 (LF & LB) 2008 (JD & LB) 2011 (LF & LB) TL193794 1995 (CP & JaC) An uncommon fern of mossy tree trunks in ancient woodland and, although there is a lack of recent records, old walls. Some of the old records for Polypodium vulgare may be referable to this species. Polypogon monspeliensis (L.) Desf. Annual Beard-grass National Status: Nationally Scarce, not threatened County Status: Rare (2 sites, 2 tetrads) Site Grid Reference Last Record Orton Pit SSSI (CP), entrance TL16669472 2011 (DB) Meadow Lane Gravel Pits TL329712 2002 (NM) This species is believed to be restricted as a native to the coasts of south and eastern England from Dorset to North Norfolk (Cope & Gray, 2009). Our populations are not a vast distance from the East Anglian coast and have found an alternate niche on sparsely vegetated substrates associated with old clay and gravel workings. Polystichum setiferum (Forsk.) Woynar Soft Shield-fern National Status: Not scarce, not threatened County Status: Rare (2 sites, 2 tetrads) Site Grid Reference Last Record Brampton Wood SSSI TL175704 2004 (TW & SW) Waresley Wood SSSI TL263546 2010 (DB) This fern has always been rare in Huntingdonshire and only a few plants are known at each site, growing on the banks of small woodland streams. The only other site where it has been recorded is Holme Fen and it was last seen there in 1846.
Populus nigra L. ssp. betulifolia (Pursh.) Wettst. Black Poplar National Status: Not scarce, not threatened County Status: Scarce (7 sites, 7 tetrads) Site Grid Reference Last Record A141, between Wyton and Oldhurst TL2875 2001 (BL) Brampton TL205725 1994 (GE) Catworth TL085742 1994 (GE) Ellington, Whitleather Lodge Farm (on parish boundary) 65 TL16157372 2009 (DB) Hartford Hill Farm TL271738 1990 (TW) Houghton to Wyton TL266749 1992 (TW) Kings Ripton/Broughton parish boundary TL265778 1990 (TW) An uncommon tree that typically only occurs as singletons or in very low numbers at any one location. Potamogeton coloratus Hornem. Fen Pondweed National Status: Nationally Scarce, not threatened County Status: Scarce (4 sites, 8 tetrads) Site Grid Reference Last Record Beeby’s Pit (CP) TL189935 1999 (NS) Farcet, Crown Lakes Country Park TL193942 2002 (NM) Fletton Lake, northeast corner (CP) TL200965 2004 (NS) Norman Cross Middle Pit TL162907 2010 (NC) Old Fletton, Pumphouse Pit (CP) TL192956 2004 (NS) Orton Pit SSSI (CP) TL1593 TL160936 TL16079416 2005 (DB) 2004 (NS) 2011 (DB) This is a species of shallow calcareous water, usually less than 1m deep. In Britain, it is predominantly a species of eastern England and has a broadly similar distribution to that of some other species of calcareous wetlands, including species covered by the Register e.g. Stellaria palustris and Lathyrus palustris (Preston, 1995). Potamogeton compressus L. Grass-wrack Pondweed National Status: Nationally Scarce, Endangered, BAP County Status: No recent records There have been no records for this species since 1974 when it was reported from Borough Fen. However, a strong population (last reported 2007) is known from the VC29 side of the River Nene at The Embankments, Peterborough (CP). It is conceivable that it might also
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Rare Plant Register for Huntingdons
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justification, however understandab
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The current accounts of charophyte
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8. The Species Accounts The species
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Orton Longueville Wood (CP) TL16079
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Conington Airfield TL178870 2005 (W
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Salome Wood TL12677788 2009 (DB & L
Page 16 and 17: Calluna vulgaris (L.) Hull Heather
Page 18 and 19: Carex divulsa Stokes ssp. divulsa G
Page 20 and 21: Carex panicea L. Carnation Sedge Na
Page 22 and 23: Carex viridula Michaux ssp. brachyr
Page 24 and 25: Centaurium pulchellum (SW.) Druce L
Page 26 and 27: Norman Cross Pits: East Pit Middle
Page 28 and 29: Cruciata laevipes Opiz. Crosswort N
Page 30 and 31: Dactylorhiza incarnata ssp. incarna
Page 32 and 33: e determined whether or not a self-
Page 34 and 35: A rare but locally abundant species
Page 36 and 37: Easton, Lodge Farm TL136696 2005 (B
Page 38 and 39: Frangula alnus Mill. Alder Buckthor
Page 40 and 41: Galium uliginosum L. Fen Bedstraw N
Page 42 and 43: Gymnocarpium dryopteris (L.) Newman
Page 44 and 45: This is a free-floating species tha
Page 46 and 47: Isolepis setacea (L.) R.Br. Bristle
Page 48 and 49: This species probably persists at a
Page 50 and 51: subspecies were not distinguished b
Page 52 and 53: Lythrum portula at Monks Wood SSSI
Page 54 and 55: Primula x digenea and Primula elati
Page 56 and 57: Lythrum portula (L.) D.A. Webb Wate
Page 58 and 59: Myosotis ramosissima Rochel Changin
Page 60 and 61: Nymphoides peltata Kuntze Fringed W
Page 62 and 63: Oenanthe silaifolia M. Bieb. Narrow
Page 64 and 65: Compartment 47 Compartment 39 62 TL
Page 68 and 69: occur on the VC31 side of the River
Page 70 and 71: natural woodlands. Where this speci
Page 72 and 73: Ranunculus sardous Crantz Hairy But
Page 74 and 75: Rubus percrispus D. Allen & R.D. Ra
Page 76 and 77: margins of rivers and lakes in mixe
Page 78 and 79: established well and has thrived. T
Page 80 and 81: Stellaria palustris Retz. Marsh Sti
Page 82 and 83: Torilis arvensis (Huds.) Link Sprea
Page 84 and 85: Utricularia vulgaris L. Greater Bla
Page 86 and 87: Veronica scutellata L. Marsh Speedw
Page 88 and 89: This species has always been rare i
Page 90 and 91: Appendix 1 Extinctions Many of the
Page 92 and 93: Wahlenbergia hederacea Ivy-leaved B
Page 94 and 95: Appendix 3 Additional Species Not Y
Page 96: Little Catworth, 9 Little Paxton, 3
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