EUPHORBIACE^E. (SPURGE FAMILY.) 401 



glands orbicular, showy ; capsule and seed smooth. (E. paniculata, Ell.) Van 

 ANGUSTIFOLIA, Ell. Stems slender ; branches mostly 3, forking, elongated, 

 spreading ; leaves varying from linear to obovate ; involucres small, scattered ; 

 appendages of the glands transversely oblong. Dry rich soil, Florida to Mis- 

 sissippi, and northward ; the var. in sandy pine barrens. July Sept. Stem 

 l-2high. 



2. E. discoidalis, n. sp. Smooth or pubescent ; branches commonly 2, 

 divaricate, forking ; leaves linear, obtuse, with the margins revolute ; involucres 

 on slender pedicels ; glands deep red, bordered by the narrow appendages ; 

 seeds obovate, pale, minutely pitted. Dry sandy pine barrens near the coast. 

 West Florida. Aug. -Oct. Plant 6' -18' high; the stem much shorter than 

 the branches. Leaves 2'- 3' long, 1" -2" wide. Involucres scattered. 



3. E. Curtisii, Engelm. Smooth ; stems filiform ; branches mostly 3, 

 erect, sparingly divided ; leaves thin, linear or linear-oblong, obtuse, short-peti- 

 oled, spreading or recurved ; involucres minute, scattered, on long capillary 

 pedicels ; glands green,' margined by the white crenate appendages ; capsule 

 erect, short-stalked, round-angled ; seed globose, smooth. Low pine barrens, 

 Florida to North Carolina. Aug. Plant 6' - 9' high, sometimes branching 

 from the base. Leaves ^' - 1 ' long. 



H -i Glands of the involucre 5, without appendages. 

 *+ Annuals. 



4. E. COmmutata, Engelm. Smooth ; stems erect or ascending, umbel- 

 lately or alternately branched ; leaves thin, obovate, entire, the lower ones peti- 

 oled, those of the branches round-kidney-shaped, sessile ; involucres nearly 

 sessile, shorter than the floral leaves ; glands crescent-shaped or 2-horned ; cap- 

 sule smooth, round-angled; seeds ovoid, pitted. Dry soil, Aspalaga, Florida, 

 and probably elsewhere, previously confounded with E. Peplus, L., which has a 

 wing-crested capsule. Stem 6' -12' high. Leaves '-!' long. Plant pale 

 green. 



5. E. obtusata, Pursh. Smooth; stem erect; branches 3-5; leaves 

 sessile, serrulate, obtuse ; those of the stem wedge-oblong, of the branches ovate ; 

 involucre nearly sessile; glands oval; capsule round-angled, warty; seeds 

 smooth. (E. Helioscopia, Ell.?) Shady woods, South Carolina, and north- 

 ward. July - Sept. Stem 1 high. Leaves 1' long. 



** *+ Perennials. 



6 E. Darlingtonii, Gray. Stem tall; branches 5-8, forking; leaves 

 entire, slightly pubescent beneath ; those of the stem oblong, of the branches 

 oval or roundish, obtuse, truncate at the base ; involucres nearly sessile ; glands 

 obliquely oval ; capsule obscurely warty ; seeds smooth. Mountains of North 

 Carolina, arid northward. July. Stem 2 -4 high. 



7. E. Ploridana, n. sp Smooth; stem erect; branches 3-4, forking; 

 leaves entire, sessile ; those of the stem linear or linear-lanceolate, mostly acute, 

 reflexed ; of the branches cordate-ovate, clasping, acute ; involucres short-pedi- 

 celled, green, with the ovate lobes nearly entire, much shorter than the truncate 

 crenate stalked glands ; capsule acute-angled, and, like the seeds, smooth. Dry 

 34* 



