IRMNG Taxon list
- Cryptosporangium arvum Tamura et al., 1998
- Cryptosporangium aurantiacum (ex Ruan et al., 1976) Tamura & Hatano, 2001
- Cryptosporangium japonicum Tamura et al., 1998
- Cryptosporangium minutisporangium (Ruan et al., 1986) Tamura & Hatano, 2001
- Frankia alni (Woronin 1866) Von Tubeuf, 1895
- Frankia subtilis Brunchorst, 1886 accepted as Frankia alni (Woronin 1866) Von Tubeuf, 1895
- Sporichthya brevicatena Tamura et al., 1999
- Sporichthya polymorpha Lechevalier et al., 1968
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