104 
Acalypha virginica L. (note that Cooperrider (1984) has pointed 
out problems in distinguishing A. deamii, A. 
thomboidea, and A. virginica, treating these taxa as 
varieties of the last-named species; further studies are 
needed), p. 979 
ANDRACHNE 
Andrachne phyllanthoides (Nutt.) J. Coulter, buck brush, p. 974 
CHAMAESYCE 
[S, G: EUPHORBIA] (Webster, 1967) 
Chamaesyce geyeri (Engelm.) Small, Geyer’s spurge [S, G: 
uphorbia geyeri Engelm.] (Webster, 1967; Richardson 
et al., 1987), p. 990 
C. glyptosperma (Engelm.) Small, sand mat, rib-seeded sand mat 
[S, G: Euphorbia glyptosperma Engelm.] (Webster, 
1967; Richardson et al., 1987), p. 996 
C. humistrata (Engelm.) Small S, G: Euphorbia humistrata 
Engelm.] (Webster, 1967), p. 994 
C. maculata (L.) Small, milk purslane, prostrate spurge [S: 
Euphorbia supina Raf.; M: Chamaesyce supina (Raf.) 
Mold.] (Burch, 1966; Richardson et al., 1987) (note 
that the epithet supina was previously misapplied in 
most floras to prostrate plants correctly referred to as 
C. maculata; plants with ascending stems previously 
referred to by the epithet maculata are more correctly 
994 
own ), p 
C. missurica (Raf.) Shinn., pr, 
G: Euphorbia Serpens Humb., Bonpl. & Kunth 
(Webster, 1967), p. 992 a, 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
