794 EUPHORBIACEAE 
VII. HinRTAE 
Plant erect: heads of involucres axillary, never terminal . 
only, but rarely subtended by 2 or more leaf-like peg 29. C. hirta. 
Plant prostrate: heads of involucres termin al, ad terminating 
branches and subtended by 2 leaf-like bract 30. C. gemella. 
1. ©. polygonifolia e ) m 0: s. s narrowly elliptic to linear-lanceo- 
late, fleshy: involucre betw m. long: capsule globose-ovoid: 
seed ellipsoid-ovoid, mod. o m 
lo (SEASIDE-SPURGE.) — Coastal wand- 
dunes, Coastal Plain, and New England 
Coast, Fla. to N. S.; also Great Lake Low- 
land, N. Y. to Wis.—Sum.-fall. 
ngallsii Small. Leaf-blades elliptic 
to ovate- ipte fleshy: involuere between 1 
and 1.5 lo 
eapsu ressed: seed 
pos. ovoid e or globose-ovoid, usually less 
tha g.—Coastal sand-dunes, Fla. 
: C. cumulicola Small Branches pros- 
rate, string-like, zigzag, glabrous; leaf- 
blades elliptie to elliptic- ovate, veinless: in- 
volucre campanulate, about 1 mm. long, gla 
brous; appendages whitish and narrower than the glands or obsolete: capsule 
about 2 mm. broad, glabrous: seed 1-1.3 mm. long, nearly terete, smooth.— 
AND- iu NE SPURGE. ) Sand. dunes and serub, ONDE Romano region and lower 
eastern coast, Fla.—All yea 
4. C. Chio ogenes Small. Leaf-blades map io or EU sometimes the 
lower ones suborbieular: involucres abou . long; appendages od 
smaller than the glands: capsule abou br oad: seed about 1 
long, angled, the faces uneven. Pinelands, prn er "Florida Keys.—All m 
9. C. Blodgettii (Engelm.) Small. Branches glabrous or nearly so: leaf- 
blades piod ovate, elliptie, or spatulate e: involueres about 1 mm. long, gla- 
brous: gland-a appendages white or pinkish, commonly slightly larger than the 
glands: capsule fully 1.5 mm. broad, glabrous: seed abou . long.—Coastal 
sand-dunes and low Pad. S pen. Fla. and the Keys. in E? ) 
Serpens Seaman Small. Branches S leaf-blades orbieular, 
Da -ovate, or involueres barely 1 . long; appendages anri 
smaller than the us capsule between 1 in 2 mm. broad: seed bar ely 1 
mm. long, our ded angled.—Sandy woods, plains, and tablelands, various 
Tex —fall, 
provinces, Fla. to , N. M., Ia., and Ill—(W. I.)—Spr 
7. C. cordifolia (EIL) Small. Branches glabrous: leaf- blades broadly elliptic 
to ovate, or sometimes broadest below the middle: ean fully 1 mm. long; 
appendages mostly much larger than ba green glands: capsule between 2 and 
3 mm. broad, glabrous: seed fully 1 long, gray, obscurely angled.—Sandy 
hammocks and sandhills, Coastal Plain, "Fla. to Tex. and S. C.—Spr.—fall. 
7a. C. Nashii Small. Branches glabrous: leaf-blades broadly elliptie to ovate: 
involueres nearly 1.5 mm. long; appendages narrow, delieate, white or greenish: 
seed sha Mes transv dus -wrinkled — Coastal sands and pinelands, pen. Fla. and 
Florida Keys.—All yea 
8. achypoda Small. Branches hirsute or villous-hirsute, with many short 
dde leaf-blades elliptie to ovate, hirsute: involueres fully 1 mm. long; 
