256 ORDER 94. POLEMONIACE^E. 



2 H. quadrivalvls Walt. Spiny, hispid ; leaves lanceolate, petiolate ; cymes 4-fr 

 flowered ; cor. azure-blue, 5 6" broad ; sep. ovate. Slow waters, S. C., and W. 2t 



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. 



Herbs with alternate or opposite leaves and 5-parted, regular, showy 

 flowers. 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. 



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



II. DIAPENSIE.E. Sepals distinct, oval. Lobes of the corolla imbricated in bud. . . .DiAPENSiA. 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 COLLOMU. 2 



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



fc Leaves undivided, opposite. Corolla wheel-funnel-form, dentate FKNZLI A. 3 



b Leaves variously divided. Ovary and pod GO -seeded ... (c) 



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



e Stamens declined in the bell-form corolla. d Low herbs POLKMONIUM. 5 



-d Climbing shrubs COB^A. 6 



1. PHLOX, L. PHLOX. LYCKNIDEA. 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 Nog. 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 /3, 9 



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



4 Leaves imbricated No. 1 1 



1 P. panlculata 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. V Shady banks, Penn., W. and . S. 2 3f. July Sept. t 

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



2 P. 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, acute, u Moist fields, Penn. to Car., and W. 2 3f. June August. 



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



y. fum talent. 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, li Prairies, woods, Pa., W. and 8. 

 9' 2f. May July. 0. or eta has roughish stems and ovate leaves. 



