| Elyhordeum macounii× (Vasey) Barkworth & D.R.Dewey | United States | 6/4/2018 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | |  available for loan |
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| Elyhordeum macounii× (Vasey) Barkworth & D.R.Dewey | United States | 5/24/2018 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Ziziphus jujuba | United States | 7/27/2021 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Ziziphus jujuba | United States | 7/27/2021 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Ziziphora clinopodioides pamiroalaica (Juz.)Sennikov | United States | 9/7/2018 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Ziziphora clinopodioides bungeana (Juz.)Rech.fil. | United States | 7/29/2020 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Zinnia grandiflora | United States | 8/27/2018 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Zingiberaceae Martinov | United States | 7/6/2017 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Zanthoxylum ailanthoides Siebold & Zucc. | United States | 6/6/2018 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Yucca neomexicana Wooton & Standl. | United States | 6/13/2019 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Yucca glauca Nutt. | United States | 6/20/2019 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Yucca glauca Nutt. | United States | 6/5/2018 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Yucca glauca Nutt. | United States | 6/4/2018 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Xylorhiza venusta (M.E.Jones) A.Heller | United States | 5/29/2019 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Xylorhiza venusta (M.E.Jones) A.Heller | United States | 5/2/2019 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Xanthoceras sorbifolium (A.Braun) Holub | United States | 5/17/2019 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Xanthium strumarium L. | United States | 9/8/2018 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Xanthium strumarium L. | United States | 9/8/2018 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Xanthium strumarium L. | United States | 8/17/2018 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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| Xanthium strumarium L. | United States | 8/14/2018 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DBG, Denver | tissue | leaf | | available for loan |
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