256 ORDER 94. POLEMONIACE^E. 



2 H. quadrlvalviN Walt. Spiny, hispid; leaves lanceolate, petiolate ; cymes 4-1 

 flowered ; cor azure-blue, 56" broad; sep. ovate. Slow watere, S. C'.. and W. St 



8. WIGANDIA, H. B. K. Cor. funnel-form. Herbs with large leaves. 

 W. CARACASANA. Half-shrubby, with ovate-cordate, doubly-crenate, variegated, ample 

 leaves, stinging hairs, and revolute spikes of small flowers. S. Am. Greenhouse. 



ORDER XCIV. POLEMONIACE^E. PHLOXWORTS. 



Ilerbn with alternate or opposite leaves and 5-parted, regu'ar, showy 

 llowers. Corolla monopetalous, the lobes convolute, rarely imbricate in 

 aestivation. Stamens 5, adherent to the corolla tube, and alternate with its 

 lobes, Ovary 3-celled. Stigma 3-cleft. Capsule 3-celled, 3-valved, loculi- 

 cidal. Seeds few or many, albuminous, attached to a permanent colu- 

 mella. Fig. 46. 



1. POLEMONIE^E. Sepals united at base. Lobes of the corolla convolute in bud. . .(a) 



H. DIAPENSIEjE. Sepals distinct, oval. Lobes of the corolla imbricated in bud UIAPK.NSIA. 7 



a Stamens unequal, included in the tube of the salver-form corolla PHLOX. 1 



a Stamens unequal, in the tube of the funnel-form (scarlet) corolla COLLOMIA. 2 



a Stamens equal and protruded from the corolla tube. Seeds 00 . . .(6) 



6 Leave s undivided, opposite. Corolla wheel-funuel-form, dentate FK.NZLI A. 3 



% Leaves variously divided. Ovary and pod CD -seeded. . .(<) 



c Stamens equal and straight. Corolla of various forms OILIA. 4 



c Stamens declined in the bell-form corolla. d Low herbs POLEMONIUM. 5 



d Climbing shrubs OOB^EA. 6 



1. PHLOX, L. PHLOX. LYCHNIDEA. Calyx prismatic, deeply 5-cleft. 

 Corolla salver-form, the tube more or less curved. Sta. very unequally in- 

 serted, and included in the tube. Caps. 3-celled, cells each 1-seeded. A 

 highly ornamental North American genus. Lvs. mostly opposite, sessile, 

 simple, entire. Fls. in terminal cymes, corymbed or panicled. Fig. 46. 



* Lobes of the corolla rounded and entire at the end. . .(1) 



1 Panicle of cymes oblong or pyramidal, many-flowered NOB. 1, 2 



1 Panicle of cymes corymbed, level-topped, flowers fewer... (2) 



2 Plants glabrous. Calyx teeth shorter than its tube Nog. 3, 4 



2 Plants hairy. Calyx teeth attenuated, longer than the tube.. .(3) 



3 Leaves narrow, linear, or nearly so Nos. 5, 6 



3 Leaves broad, ovate or lanceolate, &c Nos. 7, 8 j3, 9 



* Lobes of corolla notched or bifid at the end. 4 Leaves distant Nos. 8, 10 



4 Leaves imbricated No. 11 



1 P. panic ii latii L. Smooth, erect; leaves oblong- or ovate-lanceolate, pointed at 



each end ; fls. numerous, in a terminal panicle, pink-purple, varying to white ; calyx 

 teeth setaceous-pointed. % Shady banks, Peiin., W. and S. 2 3f. July Sept. t 

 /3. acunttuata. Lvs. ovate-acuminate, downy beneath ; stem hairy. 



2 1*. maculata L. Stem roughish. purple-spotted, upright ; leaves thickish, lanceo- 



late, the upper ovate-cordate ; fls. many, purple, in an oblong panicle; calyx teeth 

 lanceolate, acu'e. V Moist fields, Penn. to Car., and W. 2 3f. June August. 



/3. g-racilior. Tall, slender, rough : leaves lance-linear and linear. Ga. (Feay). 



y. fuaieolens. Smooth ; flowers white, sweet-scented. Gardens. 

 8 P. Carolina L. Ascending, often branched; leaves lanceolate, rounded at base, 

 pointed ; fls. rose-purple, in small, dense cymes. V Prairies, woods, Pa., W. and 8 

 9' 2f. May July. S. orata has roughish stems and ovate leaves. 



