A preliminary synopsis of the North American species 
of Amaranthus. 
EDWIN B. ULINE AND WILLIAM L. BRAY. 
(Concluded from p. 272.) 
$2. Sepals 5, oblong with mucronate tip, or acute, pun- 
gent pointed, not conspicuously nerved, mostly unequal (the 
outer one long and spiny pointed), thin or somewhat thickened 
at the base, not urceolate: utricle thin, scarious and little 
wrinkled or retracted after dehiscence: leaves mostly large and 
long petioled: flowers in naked terminal or axillary mostly 
panicled spikes (EUAMARANTHUS). 
The species of this section are with difficulty distinguished. 
* Stamens only 3. 
Forms related to those of § t, but with nearer relationship to typi: 
cal Euamaranthus. 
ee A. POWELLII Watson. Proc. Amer. Acad. 10: 347. 
1875, 
The three species of Watson, viz: 4. Powellit, A. Wrighti, Proc. 
Amer. Acad. 12: 275. 1877 and A. obovatus, |. c., together with certain 
* x Stamens 5. 
Includes a maze of indistinguishable forms comprising some of the 
Coarsest and rankest weeds. Of the several species previously enum- 
erated, but two are retained. . 
13. A. RETROFLEXUS L. Sp. Pl. Ed. Il. 1407. 1762 
gapreading everywhere throughout the United States as 4 
coarse 
: ek, sometimes growing eight to ten feet high. _ Apparently in- — 
digenous southwestward. wer it may be satisfactorily fap © : 
co and 
RE ae 
