Talk:Viljoen 1629 (1971)

Talk

Discussion for: Viljoen 1629 (1971) • View • Links • Related changes

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

Page scope

Viljoen 1629 (1971) 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 catalogue records the collector L. Viljoen, the year 1971 with the month and day blank, and the locality LANGS KANTORE (Afrikaans, alongside offices). The words describe a setting and name no place, so the accession is placed no more finely than the province and the quarter-degree square. They do not say how the plant grew. No image of the label is published, and the catalogue says nothing more. The accession is classified Unknown until the label can be read. 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 -30.625, 26.625 is the one the herbarium database, BODATSA, publishes for this sheet. It is the centre of the quarter-degree square 3026DA, 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 page names only the province. The square straddles the Orange River: its centre falls on the Free State side, while its Eastern Cape part takes in the town of Aliwal North (OpenStreetMap node 36231589), 11.2 km from the point. The point is the square's centre and does not place the gathering in the Free State. 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 06:25, 24 September 2026 (+07)