⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-13009077, with some changes.

Jamesia macrocalyx (Small) Fedde is a synonym of Jamesia americana var. macrocalyx (Small) Engl.

This name is a synonym of Jamesia americana var. macrocalyx (Small) Engl..

The record derives from Tropicos which reports it as a synonym (record 13009077) with original publication details: Just's Bot. Jahresber. 33(1[3]): 609 609 1905.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:131325-2.