Talk:Van Jaarsveld 3145 (1978)

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Discussion for: Van Jaarsveld 3145 (1978) • View • Links • Related changes

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

Page scope

Van Jaarsveld 3145 (1978) 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 E. J. van Jaarsveld, the date 8 April 1978 and the locality (Cape Town). Kirstenbosch Botanic Garden. Near compost heaps. The plant stood in a botanic garden, near compost heaps. The catalogue does not say whether it was planted there or came up by itself, so it does not show whether the plant was grown or spontaneous. No image of the label is published. The accession is classified Unknown. 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 -33.875, 18.375 is the one the herbarium database, BODATSA, publishes for this sheet. It is the centre of the quarter-degree square 3318CD, 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. Kirstenbosch National Botanical Garden, which the label names (OpenStreetMap relation 2034100), lies inside the square, 13.3 km from the point. The point is carried at the precision the database gives it. Basis: holder's georeference. Uncertainty: about 19 km.

Editorial treatment

This is one of the five Compton Cannabis entries that the BODATSA feed does carry to GBIF.

BODATSA publishes no per-specimen page, so the accession cites the database and the barcode identifies the sheet.

Source citations remain in the article. Éloise 07:18, 24 September 2026 (+07)