Talk:Jordaan 3644 (2000)

Talk

Discussion for: Jordaan 3644 (2000) • View • Links • Related changes

Use this page for verification notes, disputes, and action items. Keep narrative content on the article.

Page scope

Jordaan 3644 (2000) is about a single collection of cannabis, a seed lot or a herbarium specimen: where and when it was gathered, by whom, and what the sources say about the plants.

Data verification

Check the main page for documentation tier status. Discuss coordinate accuracy, photo quality, or collection details here.

Discussion

Evidentiary scope

The database gives the locality as Pretoria. Gardens of Belmonte, Brummeria., the date as 13 March 2000 and the collector as M. Jordaan, and describes a herb one metre high. The locality names gardens, but the catalogue does not say whether the plant was grown there or came up by itself, and it gives no use or note on cultivation. The accession is classified Unknown, and no conservation priority is assigned.

The Botanical Database of Southern Africa publishes no image of this sheet. Its image count is zero, and so is the image count of all 1,361,966 rows in the database: the store is empty, and SANBI's own site still lists plant images among its plans. The accession carries no image until the herbarium supplies a scan.

Georeferencing

The point -25.625, 28.375 is the one the herbarium database, BODATSA, publishes for this sheet. It is the centre of the quarter-degree square 2528CB, about 27 km across, and not the place the plant was gathered: BODATSA gives its accuracy, 1/4dg, and stores the square's code beside it. Of the 61 georeferenced Cannabis rows in BODATSA, all 41 flagged 1/4dg fall exactly on a square's centre and none of the other 20 does. BODATSA's LatLongChecked field is null on every Cannabis row, so no Cannabis coordinate in BODATSA has been verified by the herbarium. The label names Pretoria. The city's centre (OpenStreetMap node 25503669) lies outside the square, 6 km west of its western edge and 23.1 km from the point; the herbarium's square is kept unchanged, and the distance is the check that disagrees with it. The point is carried at the precision the database gives it. Basis: holder's georeference. Uncertainty: about 19 km.

Editorial treatment

BODATSA publishes no per-specimen page: five permalink shapes were tried for a sheet and all answered 404. The accession cites the database itself, and the barcode identifies the sheet.

Source citations remain in the article. Éloise 06:26, 24 September 2026 (+07)