7 
378 EUPHORBIACEAE. [Vor II. 
22. Euphorbia Darlingtonii A. Gray. 
Darlington’s Spurge. (Fig. 2328.) 
Euphorbia Darlingtoniti A. Gray, Man. 404. 1848. 
Perennial, dark green, often minutely pubes- 
cent. Stem rather stout, erect, 11%4°-5° tall, 
fleshy, topped by a 5-8-rayed umbel, branched 
above, the branches simple or forked; the 
leaves oblong or oblanceolate, 144/-4’ long, 
mostly obtuse at the apex, sessile, often undu- 
late, more or less pubescent beneath, those of 
the stem scattered, those subtending the umbels 
verticillate; bracts opposite, ovate or nearly reni- 
form; involucres campanulate, nearly 2’/ long, 
bearing 5 reniform crenulate unappendaged 
glands; capsule depressed-globose, minutely 
warty; seeds ovoid-globose, 
New York, Pennsylvania and New Jersey to 
North Carolina. May-Sept. 
23. Euphorbia obtusata Pursh. 
Blunt-leaved Spurge. (Fig. 2329.) 
Se oblusata Pursh, Fl. Am. Sept. 606. 
1814. 
Annual, yellowish green, glabrous. Stem 
slender, erect or assurgent, 1°-2° high, strict, 
branched above, topped by a 3-rayed umbel; 
branches simple or forked; leaves, except the 
whorl subtending the umbel, scattered, 
spatulate-oblong, obtuse, serrulate to below 
the middle, sessile, the base slightly auricled; 
inyolucres short-peduncled, 4’ long, bear- 
ing 4 stalked unappendaged glands; capsule 
subglobose, nearly 2’/” in diameter, with 
elongated warts, the lobes rounded; seeds 
lenticular, oblong, or orbicular-oblong, dark 
brown, faintly reticulated. 
{n dry soil, Virginia to Iowa, South Carolina 
and Texas. March-July. 
24. Euphorbia platyphylla L. Broad- 
leaved Spurge. (Fig. 2330.) 
Euphorbia platyphylia l,. Sp. Pl. 460. 1753. 
Annual, glabrous or nearly so. Stems mostly 
erect, slender, 4’-20’ high, terete, often reddish, 
topped by a usually 5-rayed umbel; the branches 
forked or umbellately branched; leaves, except 
the whorl at base of the umbel, scattered, oblong 
or spatulate-oblong, 10’’-15’’ long, acute, serrulate, 
sessile, the base slightly auricled; bracts triangu- 
lar-ovate or reniform, mucronate, often entire; in- 
volucres very thin, campanulate, nearly 1/’ long, 
sessile, bearing 4 sessile glands without append- 
ages; capsule subglobose, about 2’’ in diameter, 
with depressed warts, the lobes rounded; seeds 
lenticular, oblong or nearly orbicular, smooth, 
brown. 
Along the shores of the St. Lawrence River and the 
Great Lakes. Naturalized from Europe. June-Sept. 
