Feedback request: Potamogeton praelongus (44670)

[stephen evans]

This post was made automatically in response to a request for comment on the documentation form. There is more general info about such requests here.

Specimen #391230

Taxon:	Potamogeton gramineus L. ("Various-leaved Pondweed") det. Stephen B Evans 20/4/2015
Other name:	Potamogeton praelongus Wulfen ("Long-stalked Pondweed")
Filed in taxon folder:	Potamogeton praelongus Wulfen ("Long-stalked Pondweed")
Collected by:	Mr Job Edward Lousley
Collection date:	27/8/1935
Locality:	Great Britain, VC45 Pembrokeshire, Saint David's, SM72, Dowrog Common.
ex herb:	Mr Job Edward Lousley
Institution:	South London Botanical Institute (SLBI)
Image:
fruits/flowers:	mature flowers
notes:	[Almost certainly not P.praelongus Stephen B Evans BSBI recorder for Pembrokeshire VC45.]

Inferred details are marked.

Documented by johned on 17^th April 2015.

Checked by tom humphrey

Edit history

date	user	change
20/04/2015	stephen evans	Deleted determination (orig): Potamogeton praelongus
20/04/2015	stephen evans	Added determination (orig): Potamogeton gramineus
20/04/2015	stephen evans	Added notes
20/04/2015	stephen evans	Deleted locality: GB VC45 Saint David's, Downey Common.
20/04/2015	stephen evans	Added locality: GB VC45 Saint David's, Dowrog Common.
20/04/2015	tom humphrey	Deleted determination (orig): Potamogeton gramineus
20/04/2015	tom humphrey	Added determination (orig): Potamogeton praelongus
20/04/2015	tom humphrey	Added determination (det): Potamogeton gramineus on 20/4/2015
20/04/2015	tom humphrey	Added determiner: Stephen B Evans
06/08/2015	xmhcman	Deleted note: Almost certainly not P.praelongus Stephen B Evans BSBI recorder for Pembrokeshire VC45.
06/08/2015	xmhcman	Added note: [Almost certainly not P.praelongus Stephen B Evans BSBI recorder for Pembrokeshire VC45.]
06/08/2015	xmhcman	Added provenance: exherb Mr Job Edward Lousley

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User comments about this sheet

stephen evans wrote

SBE suggests this specimen is likely to be P. gramineus which is still in quantity at Dowrog Common. NMW has a Ted Lousley P. gramineus specimen from 1935. Looking at the SLBI label it seems praelongus is queried and is in pencil whilst the rest of the label is in ink. The specimen has surface leaves begining to develop and the peduncles are very robust.

[Tom Humphrey]

Hi Stephen,

Thank you for your comments about this specimen.

To make name changes really clear (so that a casual observer of the record understands why the assigned name does match the sheet label), it can be better to include you name and comments as a redetermination of specimen, rather than as a general comment on the specimen. (I've edited this sheet to reflect your comment.)

best wishes,

Tom