Type : Lectotype (designated here): USA (Missouri): Grassy clayey banks of Mississippi below Jefferson Barracks, August 1843, G. Engelmann s.n. (MO-255703!, right hand specimen
Isotypes US-00135817!, US-00135819!, VT-027361!).
Note: Mickel & Beitel (1988) designated a specimen in MO, but as there are two specimens on the cited sheet, the right hand specimen was selected here. The left hand specimen is labelled with ‘21 & 23’, which indicates that these are two separate gatherings.
Références :
Christenhusz et al. (2019)
