Apera spica-venti.txt+map

ESSEX BOTANY AND MYCOLOGY GROUPS

Apera spica-venti txt:

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Apera spica-venti (L.) P.Beauv Loose silky-bent

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Essex status: Estalished alien, increasing.

A widely scattered and rapidly increasing, but attractive annual pest of arable land on light soils, where it often grows in dense patches up to a metre high and chokes the crop, proving persistent and particularly difficult to eradicate in corn fields, as it sheds its copious light seeds before the corn is ripe. Also recorded ephemerally on roadside verges and waste ground. Its loose, extensive [up to 25cm x 15cm] panicles, with green, becoming purplish spikelets, having long straight awns up to 10mm long, make it easy to spot and identify. As Gibson (1862) only recorded it in the London area, and Stanley Jermyn (1974) wrote "uncommon and usually in small quantity" it would seem to indicate that it is a recent colonist of arable fields in Essex, with a preference for glacial loams and valley terrace sands, especially on the Tendring plateau and along the Thames valley, although it is probably under-recorded over the rest of the county. Recorde so far fro c.106 monads.

TQ(51)38		18	nr. Hale end, R W Robbins. (HANDLIST of LONDON AREA)
		18	Dagenham Dock, 1927. J E Cooper (HANDLI of LONDON AREA).
TL(52)30	37 ,05?	19	Nazeing Marsh, border of cornfield and adjacent gravel pit. (FLORA 1974)
TQ(51)48		18	Wanstead Flats, BEC 1945 Report 73.
		18	Woodland by Roding. 1977. Paul Ferris.
	40,86?	18	Wanstead park. 1979. Paul Ferris.
	416,871	18	1981. Paul Ferris.
TQ(51)49	40 ,97	18	High Beach, Reads Rose Garden. (FLORA 1974)
	486,939	18	By Hainault Forest, in wheat field south off Spurgate Plain. 19 July 1988. Kenneth J Adams.
	48 ,95	18	Lambourne, plentiful, 1972. K J Adams.
	48 ,97	18	Abridge, 1976. Margaret Kennedy.
TL(52)40	44 ,03	19	Epping, Bury Farm, 1984. K J Adams. Lon.Nat.?
	482,015	18	Theydon Garnon, edge of arable field. 15 July 1984. A D Boniface.
TQ(51)57	55 ,79	18	Averley, scattered across 2 grassy fields on sandy soil. 24 June 2003.K J Adams et EFC.
	57 ,79	18	Tim Pyner
	58 ,79	18	Tim Pyner
	59 ,78	18	Tim Pyner
	59 ,79	18	Tim Pyner
TQ(51)58	?????	18	Upminster. (FLORA 1974).
	55,79	18	Averley, 'Jill's Field' scattered in several fields. K J Adams et EFC. 23 June 2003.
	54 ,83	18	Tim Pyner
	54 ,84	18	Tim Pyner
	55 ,82	18	Tim Pyner
	55,83	18
	55,85	18
	55,87	18
	56,85	18
	56 ,80	18	1965+ R M Burton (BSBI LIST)
	56,82	18
	56 ,83	18	Tim Pyner
	57,81	18
	57 ,84	18	Tim Pyner
	573,853	18	Cranham, Upminster, 28 July 1984. Jeremy Ison
	59 ,80	18	Tim Pyner
TQ(51)59	53 ,98	18	Navestock Park, plentiful by the Lake. 1960. S T Jermyn.
TL(52)50	50 ,06	19	Magdalen Laver, disturbed roadside, in quantity.1972. (FLORA 1974). See also London Naturalist 1972. (now gone).
	521,029	18	Blackmore nr. Nine Ashes, arable weed. 1999. Graham Smith
	559,002	18	Langford bridge, Kelvedon Hatch, waste ground by farm buildings. 11 September. 1988. K J Adams et EFC.
	57 ,07	19	Fyfield. (FLORA 1974).
TQ(51)67		18	West Tilbury. (FLORA 1974).
		18	Grays. (FLORA 1974).
	60 ,78	18	Grays, arable field just north of Castle pit, 1986. K J Adams & Tim Pyner.
	60 ,79	18	Tim Pyner
	612,784	18	Grays, behind petrol station east of A1002.12 July 1969. Who?
	61 ,79	18	Tim Pyner
	65 ,77	18	Biggin Hill, arable field 1999. K J Adams et EFC.
	66 ,77	18	Tim Pyner
	66 ,78	18	Tim Pyner
	67 ,79	18	Tim Pyner
TQ(51)68	652,813	18	Orsett, nr the Cock Pub. 1983. G A Pyman.
	66 ,80	18	Tim Pyner
	66 ,81	18	Tim Pyner
	67 ,81	18	Tim Pyner
	68 ,81	18	Tim Pyner
	69 ,85	18	newly graded road cutting south of One Tree Hill. 1993. Rodney Cole.
TL(52)60	63 ,03+	18	Coptfold Farm, plentiful in cornfield. (FLORA 1974).
TL(52)61	69 ,14+	19	Great Waltham. (FLORA 1974).
	69 ,18	19	Tim Pyner
TQ(51)79	tetrads C,G, & W	18	1987-88. Tim Pyner.
	71 ,94	18	Tim Pyner
	72 ,93	18	Tim Pyner
	73 ,97+	18	nr Hanningfield reservoirs. (FLORA 1974).
	79 ,92	18	Tim Pyner
TL(52)70	79 ,04	18	Tim Pyner
TQ(51)88	85 ,88	18	Tim Pyner
	86 ,88	18	Tim Pyner
TQ(51)89	80 ,90	18	Tim Pyner
	81 ,92	18	Tim Pyner
TL(52)80	826,087		Langford, scattered in field of flax, July 1992. Tim Pyner.
	83 ,07		1985. J J Heath & T Tarpey.
	87 ,07		1989. J J Heath & T Tarpey.
	874,072		Nr Maldon, dry bank NRA survey 1990.
TL(52)82	803,244		Stisted, edge of arable field, 3 July 1988. Jeremy Ison.
	84 ,24		??? ignore no evidence yet for this record.
TL(52)83			1950+ field card. BSBI LIST.
TL(52)90	96 ,04+		St Lawrence, clover field. (FLORA 1974).
	98 ,04		1987. T Tarpey.
	99 ,03		1987. T Tarpey.
TL(52)93	92, 32		Wormingford, weedy cornfield. (FLORA 1974).
TM(62)00	00 ,03	19	1987. Terri Tarpey.
	00 ,04	19	1985. Tim Pyner.
	00 ,07	19	1987. CNHS
TM(62)01	06 ,19	19	1972. CNHS; Alresford. 1978.CNHS.
	09 ,17	19	1989. CNHS (BSBI LIST)
TM(62)02	00 ,22	19	1989. J Berry & J Marshall.
	06 ,20	19	1988. Tim Pyner.
TM(62)03	06 ,32	19	1984. CNHS.
TM(62)11	10 ,12	19	1988. R W Arthur.
	10 ,13	19	1988. R W Arthur.
	10 ,18	19	1984. J J Heath & T Tarpey
	11 ,15	19	1983. J J Heath et al.
	11 ,16	19	1983. J J Heath et al
	11 ,17	19	North of St Osyth, roadside by gravel pits,(FLORA 1974). ditto. 1983. CNHS.
	11 ,18	19	1983. J J Heath & T Tarpey
	12,15	19	FLORA 1990.
	12 ,18	19	1989. R W Arthur.
	13 ,15	19	1985 & 1988. J J Heath & T Tarpey.
	13 ,16	19	1988. J J Heath et al.
	13 ,17	19	1989. R W Arthur.
	14,15	19	Flora 1990.
	14 ,16	19	1988. J J Heath et al.
	14 ,19	19	1988. J J Heath
TM(62)12	10 ,22	19	FLORA 90
	102,223	19	Great Bently, patch 20x5m corner of cornfield. July 1992. J Berry.
	11 ,21	19	1985. W Chisholm.
	11 ,22	19	1988. J Berry et al.
	111,228	19	Gt Bentley, 1-10 plants, cornfield July 1992. J B and J M.
	112,227	19	Gt Bentley, 8x3m patch corner of cornfiled JB JM 1992.
	12 ,21	19	1988 CNHS.
	13 ,20	19	1985. R W Arthur.
	13 ,23	19	1986. CNHS.
	173,205	19	15 plants, 1988. W Chisholm & G Grogan.
TM(62)22	22 ,29	19	1985. J. J. Heath & T Tarpey.
	240,282	19	Several patches on reseeded sea wall, July 1997. Jeremy J Heath and Terri Tarpey.

PRE 1930 RECORDS:

			Cornfields about Walthamstow. Edward Forster. (FLORA 1862)
			Walthamstow. Edward Forster. Herbarium Kew. (BSBI LIST)
			Field between Ilford & Barking. 1856. Dr E Varenne. (FLORA 1862)
			Nr Lea Bridge. C T ?? (FLORA 1862)
			field nr. High Beach, c.1906. R W Robbins. (HANDLIST)