188 
*Rubus discolor Weihe & Nees, Himalaya berry [S: R. procerus 
Muller] (the taxonomy and nomenclature of this 
commonly cultivated complex of taxa is poor 
understood, due to difficulties in establishing the 
parentage of the several hybrid entities; nomenclature 
here follows that of Flora Europaea (Heslop-Harrison, 
968) for the sake of convenience), p. 836 
R. enslenii Tratt., southern dewberry, p. 83 
R. flagellaris Willd., dewberry, northern dewberry, p. 837 
var. flagellaris 
var. occidualis L. Bailey [G: R. flagellaris; M: R. roribaccus (L. 
Bailey) Rydb.] (this taxon has not been evaluated 
critically; see S: for a discussion of some points relating 
to this problem) 
f. occidualis 
f. roseus Steyerm. 
f. roseoplenus (E. J. Palmer & Steyerm.) Steyerm. 
R. frondosus Bigelow, highbush blackberry [S, G: R. pensilvanicus] 
odgdon and Steele, 1966; Davis et al., 1969b) (note 
that there is considerable confusion concerning the 
distinctness of this taxon from R. pensilvanicus and the 
matter requires further study), p. 841 
R. invisus (L. Bailey) Britton, dewberry, p. 838 
#R. laciniatus Willd., cut-leaved blackberry, p. 836 
R. missouricus L. Bailey, prickly groundberry, p. 840 
R. mollior L. Bailey, highbush blackberry [G: R. pensilvanicus] 
(Davis et al., 1969b) (the relationships between this 
on, R. argutus, and R. pensilvanicus have not been 
well studied), p. 841 
R. occidentalis L., black raspberry, p. 835 
identalis 
R. orarius Blanchard, highbush blackberry (note that this is a 
name of uncertain application; some authors use it to 
refer to glandular plants related to R. allegheniensis, 
while others use it to refer to glandless plants related 
to R. pensilvanicus; see Davis et al. (1969b) and Voss 
(1985b) for a brief iscussion), p. 841 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
