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I - To find a recently collected and verified voucher for each taxon found in a block.
Criteria for Voucher Certification:
1. Voucher must have fruit and flowers. If none are found, then two vouchers, one in fruit and one in flower, will be selected.
In the case of listed species, geotagged digital images will be the method of documentation and certification.
2. The most recent voucher must have been collected after 1990. Why? We want an accurate assessment of what is currently found in the block.
3. Any taxon with a voucher older than 20 years will be flagged for recollection.
Each taxon should be revouchered when the certified voucher specimen is greater than 20 years old. Depending on volunteer resources, it may be preferable to recollect a voucher after 10 years.
4. The UVU Herbarium would like to be a repository for duplicates of vouchers and geotagged digital images collected for block projects, especially those projects in Utah. Until Network herbaria have the resources to store thier own images, UVU could also be the repository for other herbaria's digital images.
All of the voucher specimens will be viewable online via the UVU Herbarium website. At least until all member herbaria are completely databased and photographed, the UVU Herbarium will be the resource for the public and scientific community to assist in the collection and verification of these voucher specimens.
II - To have at a minimum, georeferenced photographs of individual plants and thier habitat for every population of every listed and high priority rare plant in each block in a region.
1. Block adoptees are encouraged to visit, georeference, and photo-document (with geotagged, digital images) the rarest and most endangered taxa in their block.
This will at least initiate the visitation and monitoring of rare plants in each region, which was identified as a major issue region-wide at the 2009 Southwestern Rare Plant Conference in Salt Lake City. The adoptee may also want to use Natural Heritage forms to collect some basic population data for each population visited. The geotagging of photographs should follow the format and procedures that are currently used here by Jim Harris for the Mt. Timpanogos Wildflower Project.
III - To find the oldest voucher for each taxon found in a block
How long have we known a taxon was present in a block?
Criteria for Voucher Certification:
1. Voucher must be in good condition.
It is not necessary that both fruit and flowers be present. Only vouchers that can be reasonably determined as the taxon will be certified. Poor specimens with missing key characters for certain determination should not be certified as a voucher.
2. Vouchers will be replaced in the database if an older one is relocated.
As Network herbaria are databased, vouchers will be found that may be older or more representative.
IV - To enhance our ability to track changes in the species composition of blocks.
How many taxa are undergoing range contraction or range expansion?
Which taxa were more commonly collected in the past than the present?
1. The voucher collection process is on-going. All taxa in a block should be revouchered at least every decade. A taxon not recollected after 20 years should be flagged in the checklist as a high priority for recollection.
It may be worthwhile to find a herbarium voucher for every decade between the most recent voucher and when the first the first voucher was collected. Due to the time involved this is optional, and may not be feasible until all member herbaria are databased.
V - To develop comprehensive checklists covering all blocks in the Intermountain Region covered by herbaria in the Virtual Herbarium Network.