| Clostridium Prazmowski, 1880 | Russian Federation | | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | |  available for loan |
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| Flavonifractor plautii (Séguin, 1928) Carlier et al., 2010 | United States | | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | available for loan |
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| Clostridium cylindrosporum | United States | before 06.1941 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | | | DSMZ, Braunschweig | DNA | N/A | DNA from axenic culture | |
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| Clostridium methylpentosum Himelbloom & Canale-Parola, 1989 | United States | before 09.08.1989 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | | | DSMZ, Braunschweig | DNA | N/A | DNA from axenic culture | |
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| Clostridium disporicum Horn, 1987 | United Kingdom | before 12.09.1989 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | | | DSMZ, Braunschweig | DNA | N/A | DNA from axenic culture | |
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| Clostridium saccharolyticum Murray et al., 1982 | Canada | before 10.1980 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | | | DSMZ, Braunschweig | DNA | N/A | DNA from axenic culture | |
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| Clostridium disporicum Horn, 1987 | United Kingdom | before 12.09.1989 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | | | DSMZ, Braunschweig | DNA | N/A | DNA from axenic culture | |
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| Clostridium cocleatum Kaneuchi et al., 1979 | Japan | before 15.05.1979 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | active culture | | | | DSMZ, Braunschweig | DNA | N/A | DNA from axenic culture | |
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| Clostridium beijerinckii Donker, 1926 | Unknown | before 1969 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | | | DSMZ, Braunschweig | DNA | N/A | DNA from axenic culture | |
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| Clostridium indolis McClung & McCoy, 1957 | Unknown | before 15.10.1976 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | | | DSMZ, Braunschweig | DNA | N/A | DNA from axenic culture | |
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| Clostridium aceticum | Unknown | before 05.1936 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | | | DSMZ, Braunschweig | DNA | N/A | DNA from axenic culture | |
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| Clostridium saccharolyticum Murray et al., 1982 | Canada | before 10.1980 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | | | DSMZ, Braunschweig | DNA | N/A | DNA from axenic culture | |
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| Clostridium tertium (Henry, 1917) Bergey et al., 1923 | Unknown | before 01.10.1982 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | | | DSMZ, Braunschweig | DNA | N/A | DNA from axenic culture | |
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| Clostridium aceticum | Unknown | before 05.1936 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | | | DSMZ, Braunschweig | DNA | N/A | DNA from axenic culture | |
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| Clostridium aceticum | Unknown | before 05.1936 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | | | DSMZ, Braunschweig | DNA | N/A | DNA from axenic culture | |
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| Clostridium roseum | Unknown | before 1931 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | | | DSMZ, Braunschweig | DNA | N/A | DNA from axenic culture | |
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| Clostridium aceticum | Unknown | before 05.1936 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | | | DSMZ, Braunschweig | DNA | N/A | DNA from axenic culture | |
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| Clostridium tertium (Henry, 1917) Bergey et al., 1923 | Unknown | before 01.10.1982 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | | | DSMZ, Braunschweig | DNA | N/A | DNA from axenic culture | |
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| Propionispira arboris Schink et al., 1983 | United States | before 01.03.1984 | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | | | DSMZ, Braunschweig | DNA | N/A | DNA from axenic culture | |
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| Clostridium sartagoforme Partansky & Henry, 1935 | Unknown | | | | | | | | | | |
| Repository | Material Type | Preparation Type | Relation | Available for Loan | | DSMZ, Braunschweig | culture | (vacuum) dried culture | | available for loan |
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