POLEMOXIACE.E. (POLEMONIUM FAMILY.) 337 



Diffuse, hairy herb?, with alternate, entire leaves, and axillary and terminal sin- 

 gle, clustered, or cymose purple or white flowers. 



1. "N, Jamaicensis, L. Pubescent; stems prostrate, diffusely branched, 

 angled or slightly winged by the decurrcnt leaves ; leaves spatulate-obovate, 



obtuse, tapering into a petiole ; flowers solitary or 2-3 together, short-pedun- 

 cled ; calyx-lobes linear, ciliate, as long as the corolla; capsule oblong, splitting 

 loculicidally into 2 valves, and at length septieidally into 4 valves, leaving the 2 

 placenta? free. — South Florida. — Stem 12'- 18' long. Leaves ¥-1' long. 

 Corolla small, purple, ciliate. Capsule 4-angled, sinoo.... 



Order 98. POLEJIOMACE^. (Polemoxium Family.) 



Chiefly herbs, with opposite or alternate leaves, and regular solitary or 

 cymose flowers. — Calyx 5-cleft or 5-parted, with membranaceous-mar- 

 gined lobes, imbricated in the bud. Corolla o-lobed, convolute or (in No. 

 4) imbricated in the bud. Stamens 5, inserted on the tube of the corolla. 

 Ovary 3-celled, with 3 - many amphitropous ovules attached to the cen- 

 tral placenta. Style 3-cleft. Capsule 3-celled, loculicidally 3-valved. 

 Seeds angular. Embryo straight in the axis of copious albumen. Cotyle- 

 dons leafy, Radicle inferior. 



Synopsis. 



Tribe I. POLEMOiXIE.li!. — Lobes of the corolla convolute hi the bud. Anther-cells 

 parallel, opening lengthwise. 



1. PHLOX. Corolla salver-form. Filaments umqualty in-erted on the tube. Leaves entire. 



2. GTLIA. Corolla tubular-funnel-shapeJ. li laments equally inserted near the throat of the 



corolla. Leaves pinnately divided. 

 o. POLEMOXIOI. Corolla short-bell-shaped. Filaments inserted on the throat of the co- 

 rolla. Leaves pinnate. 



Triue II. DIAPEZVSIEJE. — Lobes of the corolla imbricated in the bud. Anther -cells 

 opening transversely. 



i. PYX1DAXTIIERA. Anther-cells awned at the base. Leaves entire. Flowers solitary. 



1. PHLOX, L. 



Calyx cylindrical or bell-shaped, 5-cleft. Corolla salver-form, with a long and 

 slender tube, and obovate or roundish lobes. Stamens 5, included, unequally 

 inserted on the tube. Style filiform. Ovules solitary in the cells. Capsule 

 ovoid, l -3-seedcd; the valves at length separating from the central placenta. 

 Seeds erect. — Mostly perennial herbs, with opposite or (the upper) alternate 

 entire leave-, and showy purple or white flowers in terminal panicled cymes. 



§ 1 . Stems herbaceous, erect or ascending. 



* v long, filiform : calyx-teeth lanceolate-subulate, not awn-pointed (except in Xo 



1 ) ' lol>es of the corolla entire. 



1 P. paniculata, L. Smooth; stem tall, branched above ; leaves ovatc- 

 lanccolate. acute or acuminate, the upper ones often cordate; cymes numerous, 



2a 



