285 
represents the hybrid C. crus-galli x C. viridis), 
p- 
Crataegus x nuda Sarg. (Gleason and Cronquist (1963) and Little 
(1979) suggested that this taxon presents the hybrid 
C. crus-galli x C. succulenta; if this can be verified 
then the name C. persimilis Sarg. has priority), 
8 
crus-galli sensu lato (incl. C. palmeri)), p. 822 
Crataegus x vailiae Britton [S:, Gleason and Cronquist (1963), 
and Little (1979) all suggested that this taxon might 
represent the hybrid C. calpodendron x C. uniflora), 
822 
+Fragaria x ananassa Duchesne, garden strawberry (F. chiloensis 
x F. virginiana), p. 824 
¢Malus x soulardii (L. Bailey) Britton, Soulard crab [S: Pyrus x 
soulardii L. Bailey] (M. ioensis x M. pumila) 
(Williams, 1982; Voss, 1985b), P- 800 ae 
+Rosa x centifolia L., cabbage rose (4 cultigen of such antiquity 
that its parentage is not known precisely; R. gallica = 
been suggested as being involved in its developmen ), 
p. 850 4 h 
*Rosa x damascena Miller, Damask rose (8 cultigen of WF iy; R 
pays F H own pre 3 #* 
antiquity that its parentage |S not kn ; 
gallica and R. moschata have been suggested as being 
involved in its development), P- 850 5 
*+Spiraea x vanhouttei (Briot) Zabel, bridal wreath von 
cantoniensis x S. trilobata) (Hornberger, > 
Ohmart, 1987) 
. = k 
S: Steyermark G: Great Plains Flora M: Mohlenbroc 
