290 
Pyrrhopappus grandiflorus (Nutt.) Nutt. (the single Missouri 
ction (Demetrio 104, GH) cited by Northington 
to southwestern Missouri and should be sought there in 
the future, but must be excluded from the state’s flora 
for the present) 
Solidago missouriensis Nutt. var. missouriensis (plants attributed 
by S: to var. missouriensis (of the Pacific Northwest) 
are all var. fasciculata Holzinger) (Cronquist, 1955; 
Barkley, 1986), p. 1488 
Thelesperma ambiguum A. Gray (according to Miihlenbach (1979), 
Missouri materials previously attributed to this species 
are actually T. filifolium (Hook.) A. Gray [T. trifidum 
(Poiret) Britton]), p. 1653 
BRASSICACEAE 
p. 
Rorippa palustris (L.) Besser ssp. hispida (Desv.) Jonsell var. 
hispida [S, M: R. islandica var. hispida (Desv.) Butters 
& Abbe] (according to Stuckey (1972) plants identified 
as var. hispida by S: were misdetermined and should 
be nates var. fernaldiana (Butters and Abbe) Stuckey), 
p. 760 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
