262 Obdbb 21.— CARYOPHYLLACE^. 



14, POLYCARPON, L. All-seed. {Gr. -rroXvg, many, Kopnbc, {luit 

 The capsules are numerous.) Sepals 5, ovate, carinate, scarions-edged ; 

 capsule 3-valved, many-seeded. — 4) Lvs. opposite and quaternate on the 

 low spreading branches. 



P. tetraph^llum L. Lva. spatulato or oval, tapering to r. petiole, some of them 

 in whorla of 4 ; stam. 3. — Around Charleston, S. Car. A low, much branched 

 plant, st3. 3 to 6' high. Lvs. 2 to 5" long. Stip. several at each joint, ovate- 

 lanceolate, membraneous. Ma. small, in dense cymes." Pet. much shorter than 

 Sep., notched, white. May, Ju. § Eur. 



15. STIPULICIDA, Michx. (Lat. stipula, ccedo ; the stipules being 

 much cleft^ Sepals oblong, with broad, scarious margins ; petals 5, as 

 long as the sepals, entire ; stigmas 3, subsessilo ; capsule subglobous, 

 3-valved, few-seeded. — @ A slender, tufted, dichotomously branched 

 herb, almost leafless, with the small fls. in terminal cyiimles. 



3. setacea Mx. In dry, sandy soils, Ga. (Feay, Mettauer) and Fla. (Chapman). 

 Sta. many from one root, glabrous, G to 10' high, each several times forked, slen- 

 der, the branches almost setaceous. Root lvs. roundish-obovate, narrowed to a 

 petiole, 1" diam. Joints distant, each marked by a fringe of leaves and stipules 

 h" long. Fls. sessile, 4 to G together, green and white, at length reddish. May. 



i6. PARONYCHIA, Tourn. Nailwort. (Gr. Trapa, with, bvv^, the 

 nail ; i. c, the lohitlow ; supposed cure for.) Sepals 5, linear-oblong, 

 connivent, slightly hooded and mucronate or awned near the apex ; 

 petals or sterile filaments very narrow and scale-like or none ; stam. 2, 

 3, or 5 ; stigmas 2 ; with the styles move or less united into 1 ; utricli^ 

 1-seeded, not exceeding the calyx. — Low herbs dichotomously branched, 

 with scarious, silvery stipules, and at least the lower lvs. opposite. 



g Paronychia. Sepals evidently awned at apex. Lvs. linear and subulate No3. 1, 2 



§ ANYCniA (Mx. partly). Sep. merely mucronate at apex. Lvs. lanceolate to oval.{*) 



* Stems procumbent, diffuse on the ground. Stamens 5 Nos. 3, 4 



* Sterna erect, with diffusely ascending branches. Stamens 2 or 8. . .Nos. 5, G 



1 P. diohotdma Nutt. Glabrous, densely branched ; lvs. acerose, mucronate ; 

 bracts like the leaves ; cymes fasiigiate, with no central flower ; sep. S-veined, cus- 

 pidate. — "il- Rocks (Harper's Ferry), Va., and Car. to Ark., rare. Densely matted 

 and branched, the flowering stems 6 to 12' high. Lvs. crowded, 1' by I" Sty. 

 bifid at top. Minute setse in place of petals. Jl. — Nov. 



2 P. argyrdooma Nutt. Pubescent, tufted, decumbent; lvs. linear, acute; cymes 

 glomerate, terminal ; fls. enveloped in dry, silvery bracts : sep. hairy, l-veined, 

 setaceously cuspidate. — % White Mts., N. 11., in the gorge behind the Willey 

 house (Chapman) and in the AUegh. and Cumb. Mts. Flowering stems 4 to 10' 

 high. Lvs. crowded, 6 to 10" long. — Fla. concealed in the bracts; the cusp 

 equaling the sepals. Jl. 



3 P. Iierniarioides Nutt. Scabrous, diSusely branched ; lvs. oval or olUmg, 

 mucronate; the raminal alternate. Fls. sessile in tlie axils of the leaves; sep. 

 -j-veined, merely mucronate. — % N. Car. (Miss Carpenter) to Ga., in sandy soU. 

 A little depressed plant, spreading on the sand, with minute lva. and fls. 

 Branches altomata with 1-sided branchlets. Lvs. S — 2 — 1" long, i as wide, 

 stip. shorter. Fis. J" long. 



■4 P. Baldiivinii Torr. & Gr. Diffusely branched, procumbent ; lvs. linear- 

 lanceolate, very acute, all opposite ; fls. longer than the setaceous stipules, mosUy 

 terminal, stalked ; stam. 5. — Fla. (Mettauer), in dry fields. Sts. moro openly 

 brarjohed, many from the same root, covering a circular spot 12 — 20' diam. 

 Lvs. few, 3 — 8" long, | — 2" wide, sessile. Fls. a J larger than in No. 3. Oct. 



5 P. CanadenBia. Stem erect, slender, pubescent, many times ferked, with 

 ijonder or capillary branches ; lvs. lanceolate, varying to oblauceolate ; tho 



