VOIv. II.] 



SPURGE FAMILY 



25. Euphorbia dictyosperma F. &M. 



Reticulate-seeded Spurge. (Fig. 2331.) 



Euphorbia dictyosperma F. & M. Ind. Sem. Hort. 

 Petrop. 2: 37. 1835. 



Annual, olive green, glabrous. Stein erect, 

 rather slender, 4 / -i5 / high, topped by a com- 

 pound 3-rayed umbel; branches forked; leaves, 

 except those subtending the umbel, scattered, 

 spatulate or oblong, 5 // -i>^ / 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 i" long, 

 with 4 oblong naked nearly sessile glands; cap- 

 sule depressed-globose, i% f/ 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 I,. 



Sun Spurge. Wartweed. (Fig. 2332.) 



Euphorbia Helioscopia L. Sp. PI. 459. 1753. 



Annual, glabrous or nearly so. Stem stout, 

 erect or assurgent, 8 / -i2 / 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, %'-$%' long, obtuse or retuse, 

 serrulate, narrowed to a short petiole; bracts ob- 

 long or ovate, serrulate, inequilateral, sessile; in- 

 volucres oblong-campanulate, I J^" long, nearly 

 sessile, usually with 4 oblong stalked un- 

 appendaged glands; capsule globose-ovoid, or 

 somewhat depressed, i" in diameter, smooth, 

 the lobes rounded; seeds ovoid, nearly \% ff 

 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 Peplus L,. Petty Spurge. 

 (Fig. 2333.) 



Euphorbia Peplus L- Sp. PI. 456. 1753. 



Annual, glabrous. Stem rather slender, erect or 

 nearly so, 4 / -i2 / high, simple or branched, topped 

 by a 3~5-rayed umbel; stem-leaves scattered, oblong 

 or obovate, yt'-\]^ f 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- 

 pan ulate, almost sessile, less than \" long, bearing 

 4 crescent-shaped unappendaged glands prolonged 

 into slender horns; capsule globose-ovoid, \"-\ l /z" 

 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. 



