Marie-Victorin Herbarium (MT) - Plantes vasculaires

Luc Brouillet1, Carole Sinou1, Geoffrey Hall1, Étienne Léveillé-Bourret1

1 Université de Montréal Biodiversity Centre, 4101 rue Sherbrooke est, H1X2B2, Montreal, Canada

Corresponding author(s): Luc Brouillet (luc.brouillet@umontreal.ca), Carole Sinou (carole.sinou@umontreal.ca)

Received {date}; Revised {date}; Accepted {date}; Published {date}

Citation: Combination of authors, year of data paper publication (in parentheses), Title, Journal Name, Volume, Issue number (in parentheses), and doi of the data paper.

Resource Citation

Marie-Victorin Herbarium (MT) from University of Montreal Biodiversity Centre. http://dx.doi.org/10.5886/rzav8bu2 (accessed on [date]). http://doi.org/10.5886/rzav8bu2

Abstract

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.

Keywords: MT, Marie-Victorin Herbarium, Herbier Marie-Victorin, Université de Montréal, WAT, SBL, Canadensys, Canada, Quebec, collection, herbarium, specimens, Vascular plants, Occurrence, Specimen, observation

Data published through GBIF: https://data.canadensys.net/ipt/resource?r=mt-specimens

Taxonomic coverage

General taxonomic coverage description: 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 https://data.canadensys.net/ipt/resource?r=mt-inventory
Taxonomic ranks
Kingdom: Plantae
Class: Equisetopsida
Subclass: Lycopodiidae, Psilotidae, Ophioglossidae, Marattiidae, Polypodiidae, Equisetidae, Cycadidae, Ginkgoideae, Gnetidae, Pinidae, Magnoliidae
Common names: Plants, Terrestrial plants, Lycopods, Ferns, Horsetails, Cycads, Ginkgo, Conifers, Angiosperms

Spatial coverage

General spatial coverage: 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.
Coordinates: 90°0'0''S and 90°0'0''N Latitude; 180°0'0''W and 180°0'0''E Longitude 

Natural collections description

Parent collection identifier: MT
Collection name: Marie-Victorin Herbarium
Collection identifier: MT
Natural collections description

Collection name: University of Waterloo Herbarium
Collection identifier: WAT
Formation period: 1920-present
Specimen preservation method: Mounted

Methods

Method step description: 
- . 	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.
- . 	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.
- . 	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.
Study extent description: Digitization and photography of vascular plant specimens from the Marie-Victorin Herbarium (MT, including WAT)
Sampling description: 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.
Quality control description: 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.

Datasets

Dataset description
Object name: Darwin Core Archive Marie-Victorin Herbarium (MT) - Plantes vasculaires
Character encoding: UTF-8
Format name: Darwin Core Archive format
Format version: 1.0
Distribution: https://data.canadensys.net/ipt/archive.do?r=mt-specimens
Publication date of data: 2023-06-19
Language: English
Licences of use: Public Domain (CC0 1.0)

External datasets

Dataset description
Object name: GBIF data portal
Character encoding: UTF-8
Format name: HTML
Distribution: https://www.gbif.org/dataset/0348540a-e644-4496-89d3-c257da9ad776

Dataset description
Object name: Canadensys Explorer
Character encoding: UTF-8
Format name: HTML
Distribution: https://data.canadensys.net/explorer/occurrences/search?q=data_resource_uid:dr25#tab_mapView

Metadata language: English
Date of metadata creation: 2011-11-28
Hierarchy level: Dataset