Marie-Victorin Herbarium (MT) - Plantes vasculaires
Latest version published by Université de Montréal Biodiversity Centre on Dec 21, 2016 Université de Montréal Biodiversity Centre
The Marie-Victorin Herbarium (MT) is the second largest university herbarium in Quebec, and ranks fourth among all Canadian herbaria. It includes about 680,000+ vascular plants. Half of the material is Canadian, but representation is global. Recently, the WAT herbarium was acquired and is now incorporated within MT, though specimens are still to be cited with the WAT acronym. The MT and WAT datasets are individually shown in the dataset, though they all belong to MT. The current dataset includes the 164,000+ digitized specimens from the collection.
Download the latest version of the resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:
|Data as a DwC-A file||download 134861 records in English (15 MB) - Update frequency: unknown|
|Metadata as an EML file||download in English (17 KB)|
|Metadata as an RTF file||download in English (14 KB)|
The table below shows only published versions of the resource that are publicly accessible.
How to cite
Researchers should cite this work as follows:
Marie-Victorin Herbarium (MT) from University of Montreal Biodiversity Centre. http://dx.doi.org/10.5886/rzav8bu2 (accessed on [date]).
Researchers should respect the following rights statement:
To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.
This resource has been registered with GBIF, and assigned the following GBIF UUID: 0348540a-e644-4496-89d3-c257da9ad776. Université de Montréal Biodiversity Centre publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Canada Biodiversity Information Facility.
MT; Marie-Victorin Herbarium; Herbier Marie-Victorin; Université de Montréal; WAT; Canadensys; Canada; Quebec; collection; herbarium; specimens; Vascular plants; Occurrence; Specimen; observation
The resource data is also available in other formats
|Canadensys explorer||http://data.canadensys.net/explorer/en/resources/mt-specimens UTF-8 HTML|
|GBIF data portal||http://www.gbif.org/dataset/0348540a-e644-4496-89d3-c257da9ad776 UTF-8 HTML|
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Global terrestrial coverage (except Antartica). Over 88% of the specimens in this dataset are collected in Canada, of which 70% in the province Quebec and 19.5% in Newfoundland. 5% of the specimens are from the United States and 3.5% from Cuba. For more detailed information about the whole collection, see our inventory at http://dataset.canadensys.net/mt-inventory.
|Bounding Coordinates||-90, 90 / -180, 180 (min, max Latitude / min, max Longitude)|
This dataset includes all digitized vascular plants and bryophytes in the collection. The top 3 families are Cyperaceae (15%), Asteraceae (9%) and Poaceae (5%). For more detailed information about the whole collection, see our inventory at http://dataset.canadensys.net/mt-inventory.
|Class||Equisetopsida (Terrestrial plants)|
|Subclass||Lycopodiidae (Lycopods), Psilotidae, Ophioglossidae, Marattiidae, Polypodiidae (Ferns), Equisetidae (Horsetails), Cycadidae (Cycads), Ginkgoideae (Ginkgo), Gnetidae, Pinidae (Conifers), Magnoliidae (Angiosperms)|
Originally, data were manually digitized as text from specimen labels, without photography. Currently, digitization still occurs as before for specific projects, but a new process based on specimen photography has been initiated, with the aim of increasing the pace of data capture. The process is: minimal digitization of specimen, photography (photos stored on photo server accessible via URL address), publication of minimally digitized data with photo. This will be followed eventually by full digitization either of targeted collections or via crowd sourcing (in development). All specimens newly acquired by MT and returned loans are digitized (when data are not provided by donor; MT encourages donors to provide digital data used to generate labels) and photographed.
|Study Extent||Digitization and photography of vascular plant specimens from the Marie-Victorin Herbarium (MT, including WAT)|
|Quality Control||Initially, legacy data had been formatted to fit the new database structure and cleaned as well as possible, though they still contain inconsistencies. They are being corrected both opportunistically and in a systematic manner for determinations and geography data. Inaccurate georeferenced data are currently being corrected. New records are entered using controlled vocabularies where relevant and should contain fewer errors. Data from donations are processed via a workbench and compared with the controlled vocabularies to ensure consistency. Specimens are validated by a taxonomist before databasing to ensure identification accuracy.|
|Step Description 1||Examine specimen and annotations labels. Verify and update determination if qualified. Search specimen record in collection database and update where necessary, or create new record and populate fields with the information on the specimen label. Use controlled vocabularies where relevant. Determinations are recorded in a related table (included in this dataset as http://rs.gbif.org/extension/dwc/identification.xml), as are related projects and specimen exchange history.|
|Step Description 2||Verify locality provided on specimen labels with online databases to ensure quality of geographic data. Georeferences provided on labels are validated using online maps and GIS tools and corrected at need, with the addition of a measure of inaccuracy.|
|Step Description 3||Print the newly generated specimen number onto the physical specimen, to be used as reference to the datase and as accession number in the collection.|
|Collection Name||Marie-Victorin Herbarium|
|Parent Collection Identifier||MT|
|Specimen preservation methods||Mounted|