⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-27801539, with some changes.
This name is a synonym of Crataegus collina var. lettermanii (Sarg.) Eggl..
The record derives from Tropicos which reports it as a synonym (record 27801539) with original publication details: Bot. Gaz. 31(4): 220-221 220 1901.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:68530-2.