Vor. II.] SPURGE FAMILY. 379 
25. Euphorbia dictyospérma F. & M. og 4, 
Reticulate-seeded Spurge. (Fig. 2331.) dy YW Be 
\ \ a q 
Euphorbia dictyosperma F. & M. Ind. Sem. Hort. | Xp \ dh/ Re 
Petrop. 2:37. 1835. 
Annual, olive green, glabrous. Stem erect, 
rather slender, 4’-15’ high, topped by a com- 
pound 3-rayed umbel; branches forked; leaves, 
except those subtending the umbel, scattered, 
spatulate or oblong, 5’/-1}4’ long; obtuse, ser- 
rate to below the middle, sessile, the upper 
slightly auricled at the base; bracts oblong or 
ovate, inequilateral, small, serrate, cordate; in- 
volucres solitary in the axils, less than 1/’ long, 
with 4 oblong naked nearly sessile glands; cap- 
sule depressed-globose, 114’’ in diameter, with 
elongated warts; seeds ovoid, lenticular, reddish 
brown, finely but distinctly reticulated. 
Maryland to Minnesota and California, south to 
Alabama and Mexico. May-Aug. 
26. Euphorbia Helioscopia L. Sun Spurge. Wartweed. (Fig. 2332.) 
Euphorbia Helioscopia I,. Sp. Pl. 459. 1753. 
Annual, glabrous or nearly so. Stem stout, 
erect or assurgent, 8/-12/ tall, often branched 
from the base, topped like the branches by a 
more or less compound 3~5-rayed umbel; leaves, 
except the whorl at the base of the umbel, scat- 
tered, spatulate, obovate, oblong, or sometimes 
nearly orbicular, 14’-4 14’ long, obtuse or retuse, 
serrulate, narrowed to a short petiole; bracts ob- 
long or ovate, serrulate, inequilateral, sessile; in- 
volucres oblong-campanulate, 114’ long, nearly 
sessile, usually with 4 oblong stalked un- 
appendaged glands; capsule globose-ovoid, or 
somewhat depressed, 2’’ in diameter, smooth, 
the lobes rounded; seeds ovoid, nearly 114/’ 
long, reddish brown, strongly reticulate. 
In waste places in the Valley of the St. Lawrence 
and along the Great Lakes, extending south in 
New York and Ohio. Naturalized from Europe. 
Among many other English names are Sunweed, 
Turnsole, Little Good, Cat’s Milk, Wolf’s Milk, 
Churnstaff, Wart-grass, Mouse-milk. June-Oct. 
27. Euphorbia Péplus I,. Petty Spurge. 
(Fig. 2333.) 
Euphorbia Peplus I, Sp. Pl. 456. 1753. 
Annual, glabrous. Stem rather slender, erect or 
nearly so, 4’-12’ high, simple or branched, topped 
by a 3-5-rayed umbel; stem-leaves scattered, oblong 
or obovate, 14/-11¢’ long, obtuse or retuse, entire, 
crisped, narrowed into a slender petiole; those at the 
base of the umbel whorled; bracts opposite, ovate or 
triangular-ovate, apiculate, sessile; involucres cam- 
panulate, almost sessile, less than 1/’ long, bearing 
4 crescent-shaped unappendaged glands prolonged 
into slender horns; capsule globose-ovoid, 1//-1%4// 
in diameter, slightly nodding, smooth, the lobes 2- 
keeled; seeds oblong or oblong-ovoid, whitish, nearly 
terete, marked with 1-4 series of pits. 
In waste places, western New York to New Jersey and 
Pennsylvania. Adventive from Europe. June-Sept. 
