552 
Euphorbia fendleri Torr. & Gr. Pac. R, Rep. ii, 175 (1855). Type data, “Big 
Springs of the Colorado, April. This species is No. 800 of Fendler’s New Mexico 
collection.” 
Richfield, Morton County (No. 167). Common about Point of Rocks. 
Euphorbia geyeri Engelm.; Engelm. & Gr. Pl. Lindh. 52 (1845). Type locality, 
‘Beardstown, Illinois, and Upper Missouri; Geyer.” 
Syracuse, Hamilton County (No. 94). Common. 
Euphorbia glyptosperma Engelm, Bot. Mex. Bound. 187 (1859); E. polygonifolia 
Hook, F1. Bor. Amer. ii, 140 (1838), not L. Type distributed, according to Engelmann, 
“fon the Rio Grande; also on the Arkansas, and extending to the Upper Missouri.” 
Hooker’s habitat is: ‘‘Canada (Pursh) to Carleton House Fort, on the Saskatchawan. 
Drummond. On Menzies Island and at the Grand Rapids of the Columbia, N. W, 
America, Douglas.” 
Ulysses, Grant County (No. 2). On piles of earth thrown from cellars and wells; 
on high land. Syracuse, Hamilton County (No. 142), Common. 
Euphorbia lata Envelm. Bot. Mex. Bound. 188 (1859); F, dilatata Torr. & Gr. 
Pac. R. Rep. ii, 175 (1855), not Hochst. Type locality, ‘‘Western Texas. Not uncom- 
mon in New Mexico.” 
Ulysses, Grant County (No. 20). Valley of a tributary to North Fork Cimarron; 
very rare. 
Euphorbia marginata Pursh, FI]. ii, 607 (1814). Originally collected ‘on the 
Yellow-stone River.” 
Syracuse, Hamilton County (No. 150), Abundant. 
Euphorbia petaloidea Engelm. Bot. Mex. Bound. 185 (1859). No type locality; 
var. nuttallii is made to replace £. arenaria Nutt.,' the type distribution of which is 
“On the sandy banks of the Arkansas and Red rivers.” 
Ulysses, Grant County (No. 60). Sandy banks along south side of North Fork 
Cimarron; frequent. 
Euphorbia serpens H. B. K. Nov. Gen. & Sp. ii, 52 (1817). The type was found 
“in umbrosis Cumanw prope Bordones et Punta Araya,” 
Syracuse, Hamilton County (No. 136). Common, 
Euphorbia stictospora Engelm. Bot. Mex. Bound. 187 (1859). Type distribution, 
“From Kansas (Fendler, 798) to Santa Fe (Fendler, 797) and Dona Ana (Wright, 59) 
New Mexico, and Corallites, Chihuahua; Thurber.” 
Syracuse, Hamilton County (Nos. 128, 141). Common. 
, 
Croton texensis (Klotzsch) Muell. Arg. in DC, Prodr. xv, pt. 2, 692 (1862); Hen- 
decandra texensis Klotzsch in Erichs. Archiv. i, 252 (1841); Croton muricatus Nutt. 
Trans. Amer. Phil. Soc. v, 153 (1837), not Vahl. The type grew ‘‘on the sandy 
beaches of the Great Salt River, Arkansas.” 
Ulysses, Grant County (No. 50). By the roadsides and in sandy places along the 
river; frequent. Johnson, Stanton County (No. 187). 
Ditaxis humilis (Engelm. & Gr.) Pax, in Engler. & Prantl, Nat. Pfl. Fam. ili, abt. 
5, 45 (1890); Aphora humilis Engelm. & Gr. Bost. Journ. Nat. Hist. 262 (1845). “In 
hard clayey soil west of the Brazos (also Texas, Drummond, collection second, No. 
230, and Dr. Wright).” 
Syracuse, Hamilton County (No. 86). Frequent. 
‘Nutt. Pl. Ark, 171 (1837), not H. B. K. 
