Description
Basic data from specimen labels on all the sheets currently held in PSUB collection shown together with digital images from high resolution scans of each sheet.
Characeae is a family of freshwater green algae in the order Charales, commonly known as stoneworts. They are also known as brittleworts from the fragility of their lime-encrusted stems. The most commonly recorded species belong to the genera Chara and Nitella
Data Records
The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 15 records.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Versions
The table below shows only published versions of the resource that are publicly accessible.
How to cite
Researchers should cite this work as follows:
Murray-Hudson F, Madome J (2023). The Characeae held at PSUB Herbarium. Version 1.0. Okavango Research Institute.
Rights
Researchers should respect the following rights statement:
The publisher and rights holder of this work is Okavango Research Institute. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.
GBIF Registration
This resource has been registered with GBIF, and assigned the following GBIF UUID: 8c9cda7c-dd24-4c2e-b3da-fe88ac99327d. Okavango Research Institute publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Participant Node Managers Committee.
Keywords
Occurrence; charophyte; rhizoids; sediment; Specimen
Contacts
- Originator
- Originator ●
- Point Of Contact
Geographic Coverage
Northern Botswana, mainly Okavango Delta.
| Bounding Coordinates | South West [-21.043, 21.05], North East [-17.728, 25.84] |
|---|
Taxonomic Coverage
Freshwater green algae in the order Charales, commonly known as stoneworts. PSUB would appreciate further determinations.
| Genus | Chara (Stoneworts, Brittleworts), Nitella (Stoneworts, Brittleworts) |
|---|
Temporal Coverage
| Start Date / End Date | 1972-10-29 / 2020-09-30 |
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Project Data
An ongoing project to digitise the herbarium's specimens. We have created a specifically tailored Botanical Records And Herbarium Management System (BRAHMS) which is now our on site database. Data harvesting from duplicates held elsewhere globally. Herbarium sheet preparation, high resolution digital scanning to create image, specimen data entry into BRAHMS.
| Title | Published as part of PSUB's Data Mobilization Project |
|---|---|
| Funding | University of Botswana Desert & Delta Safaris (Chobe Holdings Limited) |
| Study Area Description | The Peter Smith University of Botswana (PSUB) herbarium collection has at its core the legacy collection of Peter A. Smith specimens. The Characeae family held at PSUB were collected from northern Botswana. |
| Design Description | The Data Mobilization Project of PSUB intends to digitise and publish its entire collection on GBIF. This first dataset is all the Characeae family specimens in our collection. |
The personnel involved in the project:
- Programmer
- Curator
Sampling Methods
Various collectors deposited specimens which have been mounted, labelled and scanned digitally. Represents the entire Characeae family currently held at PSUB
| Study Extent | Northern Botswana |
|---|---|
| Quality Control | Data from labels entered into BRAHMS Comparison with duplicates held in other herbaria |
Method step description:
- BRAHMS data aligned with GBIF formats
Collection Data
| Collection Name | Characeae |
|---|---|
| Collection Identifier | PSUB |
| Parent Collection Identifier | Okavango Research Institute, University of Botswana |
| Specimen preservation methods | Deep frozen, Dried and pressed, Mounted |
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| Curatorial Units | Between 15 and 15 Herbarium sheets |
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Bibliographic Citations
- Retrieved [August, 11,2023], from the Integrated Taxonomic Information System (ITIS), www.itis.gov, CC0 https://doi.org/10.5066/F7KH0KBK https://doi.org/10.5066/F7KH0KBK
Additional Metadata
| Purpose | First data set to be made available online from PSUB herbarium. Additional families will be uploaded until the entire PSUB herbarium collection is accessible online. |
|---|---|
| Maintenance Description | If uploaded data is found to be incorrect and when additional specimens become available for inclusion. |
| Alternative Identifiers | https://www.monitoringdata.ub.bw/ipt/resource?r=the_characeae_held_at_psub_herbarium |