294 
DRYOPTERIDACEAE 
Cystopteris fragilis (L.) Bernh. [S: C. fragilis var. fragilis 
f. fragilis] (this taxon was misunderstood by most 
earlier workers and the specimens from Missouri 
comprise a mixture of C. protrusa (Weath.) Blasdell 
and C. tennesseensis Shaver) (Blasdell, 1963; Peck, 
1982), p. 36 
Dryopteris x australis (Wherry) Small [S: D. clintoniana 
(D. Eaton) Dowell var. australis Wherry] (this rare 
hybrid occurs only in the southeastern United States; 
Missouri collections are D. celsq (W. Palmer) Small, 
One of the parental species) (Wagner, 1970; 
Montgomery, 1982), p. 41 
EUPHORBIACEAE 
Euphorbia heterophylla L. [S: incl. var. graminifolia (Michaux) 
Engelm.] (Dressler (1961) noted that true E. 
heterophylla [as Poinsettia heterophylla (L.) Klotzsch 
& Garcke] occurs to the south and west of Missouri 
and that our plants are E. cyathophora Murray [as 
Poinsettia cyathophora (Murray) Klotzsch & Garcke]), 
986 
p. 
Tragia urticifolia Michaux (according to Miller and Webster 
7), reports of this species from Missouri should 
be referred to T. betonicifolia Nutt. and T. ramosa 
Torrey), p. 982 
FABACEAE 
Anthyllis vulneraria L. (Steyermark, 1963) (note that S: was 
unable to locate Missouri material of this species 
outside of cultivation, but did not exclude it 
Officially from the flora; it has not been collected 
since), p. 894 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
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