Feedback request: Elodea canadensis (599.1.0)

[oldnick]

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Specimen #317796

Taxon:	Elodea canadensis Michx. ("Canadian Waterweed")
Filed in taxon folder:	Elodea canadensis Michx. ("Canadian Waterweed")
Collection date:	1879 '?'
Locality:	Great Britain, VC21 Middlesex, Crouch Hill, TQ38, Pond, Hog's Back, Crouch Hill [around TQ303877]
Institution:	University College Dublin (DBC)
Image:
fruits/flowers:	mature flowers

Inferred details are marked.

Documented by nacs12 on 5^th April 2011.

Checked by oldnick

Edit history

date	user	change
30/09/2013	oldnick	Added locality: GB VC21 Crouch Hill, Pond, Hog's Back, Crouch Hill [around TQ303877]
30/09/2013	oldnick	Deleted locality: GB VC21 Crouch Hill, Pond, Hog's Back, Crouch Hill
30/09/2013	oldnick	Deleted collection date: 1879
30/09/2013	oldnick	Added collection date: 1879 '?'

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User comments about this sheet

oldnick wrote

'Until the 19th century the only important internal boundary was the 'northern hog's back', (the ridge between Crouch Hill and Harringay (West) station, which separated Brownswood manor to the south from Hornsey manor and its dependencies to the north. New roads created divisions in the 19th century. The first was Archway Road, which is treated in the present article as the boundary between Hornsey and Highgate. Seven Sisters Road was a local government boundary from 1965.
The parish is hilly. Most of the lower ground lies on London Clay of great thickness. The Boulder Clay with its edging of glacial gravel at Finchley skirts the north-western boundary and south of Creighton Avenue and north of Woodside Avenue protrudes in a broad tongue, roughly corresponding with the summit of Muswell Hill, to the Wood Green boundary. The northern heights from Hampstead to Crouch Hill lie on Claygate Beds, except the Upper Chalk summit of Highgate Hill. Clissold Park is on the edge of the brickearth to the south-east....etc' From: 'Hornsey, including Highgate: Introduction', A History of the County of Middlesex: Volume 6: http://www.british-history.ac.uk/report.aspx?compid=22515