Crataegus crus-galli var. attenuata (Ashe) Farw. Rep. (Annual) Michigan Acad. Sci. 20: 181 (1918)

Nomenclatural References

• literature : Rep. (Annual) Michigan Acad. Sci. 20: 181. 1918 BHL link from IPNI metadata.
• person : Oliver Atkins Farwell (1867-1944) Based on occurrence of standard abbreviation 'Farw.' in the authors string.
• database : IPNI record: 68114-2