Johnston 508 (1901)

Johnston 508 herbarium gathering, Mooi River, Natal (1901)
Johnston 508 (1901)
Johnston 508, the sheet held by the Royal Botanic Garden Edinburgh as E01459339 (CC BY-SA 2.5, Royal Botanic Garden Edinburgh)
At a Glance
Classification	Unknown
Location
Country	South Africa
Province/State	KwaZulu-Natal
Locality	Mooi River
Coordinates	-29.21, 29.99
Point type	Settlement point
Uncertainty	about 4 km
Collection
Method	Herbarium specimen
Sourcing Type	Historical
Date	13 February 1901
Collector	H. H. Johnston
Specimen
Repository	Royal Botanic Garden Edinburgh
Catalogue Number	E01459339
Collector Number	Johnston, H.H. 508
Scientific Name	Cannabis sativa L.

Year at a glance (computed)

Point

29.21° S, 29.99° E

Elevation used

1,433 m computed, GMTED2010 (1 km), at this point

Köppen class

Cwb

Clock

UTC+2

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Day and night
First light	04:48	05:16	05:37	05:54	06:11	06:26	06:27	06:09	05:35	04:59	04:32	04:28
Sunrise	05:15	05:41	06:01	06:18	06:36	06:52	06:53	06:33	05:58	05:23	04:58	04:55
Sunset	19:03	18:47	18:18	17:42	17:16	17:09	17:19	17:36	17:52	18:08	18:32	18:55
Last light	19:30	19:12	18:42	18:06	17:41	17:35	17:45	18:01	18:16	18:33	18:58	19:22
Daylighth	13h49	13h06	12h18	11h24	10h40	10h17	10h26	11h03	11h54	12h46	13h34	14h00
Changemin/day	−1.0	−1.6	−1.8	−1.6	−1.2	−0.2	+0.8	+1.5	+1.7	+1.7	+1.3	+0.3
Temperature
Avg daily high°C	25	24	23	21	18	16	16	18	21	22	23	24
Avg daily low°C	14	14	13	10	6	3	3	5	8	10	11	13
Swing°C	10	10	10	11	12	13	13	13	13	12	11	11
Water and light
Rainmm	130	107	85	39	13	13	12	22	32	76	99	126
VPDkPa	0.9	0.9	0.8	0.7	0.7	0.6	0.6	0.7	0.8	0.7	0.8	0.8
Sunlightmol/m²/d	45	43	37	32	28	25	27	32	37	39	43	46
Field cycle
Cycle

• Planting
• Growing
• Harvest
• Not recorded / off season

No field cycle is recorded on this accession's page.

Day and night computed from the sun's position on the 15th of each month; climate normals 1981–2010 from CHELSA V2.1 · About these figures

Johnston 508 is a herbarium accession of Cannabis sativa collected at Mooi River in KwaZulu-Natal, South Africa, on 13 February 1901 by H. H. Johnston. The Royal Botanic Garden Edinburgh holds the sheet as E01459339. It is the male plant of a pair; Johnston 877 is the female, and each label points at the other.

The label

The sheet is stamped HERBARIUM OF COL. H. H. JOHNSTON. The handwritten label reads 508 / Cannabis sativa, Linn. followed by the male sign, then Same as no 877. (Urticaceae) (fide J. M. Wood.) and Mooi River, Natal, 13.2.01. H. H. J. A pencilled ORD 153 sits at the lower left.

The cross-reference to Medley Wood

The phrase fide J. M. Wood attributes the identification of this gathering with number 877 to John Medley Wood, curator of the Natal Herbarium at Durban. The family is given as Urticaceae, where cannabis was then placed.

What the catalogue holds

Edinburgh's catalogue records no collector, number, date or country for this sheet. It files it under the region Southern Africa and nothing more. Every value this accession carries was read from the digitised sheet in September 2026, and the reading is what the accession rests on.

Specimen and identification

The determination on the sheet is Cannabis sativa Linn., and the plant is marked male.