Maxwell 88-1359 (1988)
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| Maxwell 88-1359 herbarium gathering, Doi Suthep (1988) | |
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| Maxwell 88-1359 (1988) | |
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| Maxwell 88-1359, held by the California Academy of Sciences as catalogue 1781017 (CC0) | |
| At a Glance | |
| Classification | Landrace |
| Hierarchy | |
| Growing Region | Northern Thailand |
| Location | |
| Country | Thailand |
| Province/State | Chiang Mai Province |
| District | Hang Dong District |
| Locality | Sisangwan Valley, Doi Suthep |
| Coordinates | 18.72, 98.90 |
| Elevation | 850 m |
| Traditional Names | |
| Local Name | gun cha |
| Collection | |
| Method | Herbarium specimen |
| Sourcing Type | Historical |
| Date | 26 November 1988 |
| Collector | J.F. Maxwell |
| Specimen | |
| Repository | California Academy of Sciences |
| Catalogue Number | CAS 1781017 |
| Collector Number | Maxwell, J.F. 88-1359 |
| Scientific Name | Cannabis sativa L. |
| Occurrence Record | View occurrence record |
| Genebanks and Sequence Data | |
Sequence data
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Maxwell 88-1359 is a herbarium accession of Cannabis sativa collected in the Sisangwan Valley on the south-west side of Doi Suthep, Hang Dong District, Chiang Mai Province, northern Thailand, on 26 November 1988 by J.F. Maxwell. The California Academy of Sciences holds a sheet as catalogue 1781017, published by GBIF as preserved specimen occurrence 6408925513.[1] The California Botanic Garden holds a duplicate as catalogue RSA0126608.[2]
Collection and locality
The typed label is headed Flora of Thailand and Herbarium, Faculty of Pharmacy, Chiang Mai University. It is stamped Cultivated & introduced.[3] It gives the province as Chiang Mai, the district as Hang Dong, the location as Doi Sutep, SW. side, Sisangwan Valley, the elevation as 850 m and the date as 26 November 1988.[3] The Academy's catalogue gives the district as Kong Dong.[1]
Recorded local name and use
The label gives the common name as gun cha. Its notes end native to central Asia; cultivated for smoking the leaves, narcotic.[3]
Cultivation observation
The label gives the habitat as open field in the primary evergreen forest, granite bedrock.[3]
Specimen and identification
The notes describe an erect, branching herb up to 2 m tall, with branchlets and petioles dull purplish, older branches more greenish, bracts and achenes green and leaflets dark green above, light green underneath.[3] The Academy's sheet holds a whole fruiting plant with its root. The label names the family Cannabinaceae and the plant Cannabis sativa L. It records three duplicates.[3] The catalogues record the plant as Cannabis sativa L.[1][2]
The California Botanic Garden's catalogue notes Population dynamics in Cannabaceae; Leaf tissue removed for DNA; Christopher J. Grassa (ECON) - 01/18/2018 for its sheet.[2] Maxwell 97-797 is a later cannabis gathering by the same collector.
Sequenced duplicate
Leaflets from the California Botanic Garden duplicate, RSA0126608, were sampled for DNA by a herbarium-genomics project coordinated by Christopher J. Grassa of Harvard University, and the sample was sequenced by Marco Todesco at the University of British Columbia. The sample is BioSample SAMEA112688698, public in the European Nucleotide Archive since 24 February 2025. Its voucher is RSA:RSA:746458 and its tissue Leaflets removed from original specimen voucher.[4]
The sample belongs to the archive's project DNA sequencing of Cannabis specimens accessioned in herbarium RSA, one of a set organised under an umbrella project called Population Dynamics in Cannabaceae.[5] Two whole-genome sequencing runs from it, made on an Illumina NovaSeq 6000, were released on 20 April 2025.[6][7] The sample is the California Botanic Garden sheet's, not the Academy's.
- ↑ 1.0 1.1 1.2 "Occurrence 6408925513: Cannabis sativa L." GBIF. Global Biodiversity Information Facility. Retrieved 18 September 2026.
- ↑ 2.0 2.1 2.2 "RSA0126608: Cannabis sativa L." CCH2 Portal. Consortium of California Herbaria. Retrieved 18 September 2026.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "Digitised sheet CAS 1781017: Cannabis sativa L." CAS Botany collection images. California Academy of Sciences. Retrieved 18 September 2026.
- ↑ "BioSample SAMEA112688698: Cannabis from Herbarium RSA, Grassa sample 3CJG1846". BioSample. National Center for Biotechnology Information. Retrieved 6 October 2026.
- ↑ "PRJEB59905: DNA sequencing of Cannabis specimens accessioned in herbarium RSA". European Nucleotide Archive. EMBL-EBI. Retrieved 6 October 2026.
- ↑ "Run ERR10949809". Sequence Read Archive. National Center for Biotechnology Information. Retrieved 6 October 2026.
- ↑ "Run ERR10949976". Sequence Read Archive. National Center for Biotechnology Information. Retrieved 6 October 2026.
