ERYTHRONIUM, dogtooth violet 
Erythronium albidum Nutt., white dogtooth violet, white trout 
E. americanum Ker Gawler, yellow adder’s tongue, 
yellow dogtooth violet, yellow trout lily, p. 433 
ssp. americanum : 
E. mesochoreum Knerr, white dogtooth violet, white trout lily, 
prairie dogtooth violet [S: Erythronium albidum 
var. mesochoreum (Knerr) Rickett] (Robertson, 
1966), p. 434 
*E. rostratum W. Wolf, yellow adder’s tongue, yellow dogtooth 
violet, yellow trout lily (Parks and Hardin, 1963; 
Robertson, 1966) 
HEMEROCALLIS, day lily 
+Hemerocallis fulva (L.) L., orange day lily (note that S: 
mistakenly transferred this taxon to H. lilio- 
asphodelus L. (in his errata, p. 1726); this is t : 
correct name for the yellow day lily, once called H. : 
flava L., which is not known to escape from cultivatio 
in Missouri), p. 430 
var. fulva 
var. kwanso Regel 
HYMENOCALLIS, spider lily 
i S: H. 
Hymenocallis caroliniana (L.) Herbert, spider lily [ ae 
occidentalis (Le Conte) Kunth] (Traub, 1962), P- 
HYPOXIS, star grass 
H ecm p- 457 
ypoxis hirsuta (L.) Cov., yellow star grass, 
f. hirsuta 
f. villosissima Fern. 
: Mohlenbrock 
S: Steyermark G: Great Plains Flora M: Mo 
