246 DICOTYLEDONOUS PLANTS. 



M. proboscidca Linn. : stem viscid, pubescent, branched, mostly de- 

 cumbqnt ; leaves alternate, cordate, nearly round, very entire, villous; 

 flowers axillary, on long peduncles. 



HAB. River banks. Penn. to Car. W. to Miss. Aug., Sept. 

 .Stcm 1 2 feet long. Flowers dull yellow, large, spotted. 

 Whole plant fetid. Unicorn Plant. 



ORDER LXXXII. POLEMONIACE^. Lind. 



Calyx 5-parted, persistent, sometimes irregular. Carol re- 

 gular, 5-lobed. Stamens 5, inserted on the middle of the tube 

 of the corol and alternate with its segments. Ovary superior, 

 3-celled ; ovules ascending ; style simple ; stigma trifid. Cap- 

 sule 3-celled, or spuriously so, 3-valved, with a loculicidal de- 

 hiscence ; the valves separating from the axis. Seeds angular 

 or oval, often enveloped in mucus, ascending ; embryo straight 

 in the axis of horny albumen ; radicle inferior, next the hilum ; 

 cotyledons elliptical, foliaceous. 



Herb*) with opposite or alternate, simple or variously divid- 

 ed leaves. 



1. PHLOX. Linn. 



Calyx prismatic, deeply 5-cleft ; segments connivent. Corol 

 salver-form ; border 5-lobcd, flat ; lobes cuneate. Stam&is 

 inserted above the middle of the tube of the corol, very un- 

 equal. Capsule roundish, ovate, 3-celled ; cells 1-seeded. 



Pentandria. Monogynia. 



1. P. panictdata Unn. : stem erect, smooth ; leaves lanceolate, flat, 

 the margin scabrous ; corymb panicled ; segments of the corol round- 

 ed ; calyx tapering to an awn. 



HAB. Meadows. Penn. to Car. June, July. If. Stem 23 

 feet high. Leaves opposite. Flowers in opposite corymbs, some- 

 what paniculate, purple ; tube of the corol pubescent, much long- 

 er than the calyx. 



2. P. pyramidalis Smitfi : erect, smooth ; stem scabrous ; leaves cor- 

 date-ovate, acute ; panicle fastigiate, pyramidal ; segments of the 

 corol cuneate, truncate ; teeth of the calyx somewhat erect, lanceo- 

 late, acute. 



HAB. Mountain meadows. Penn. to Car. Aug. Z. Pursh 

 Stem 2 3 feet high. Leaves opposite, sessile, very entire. 

 Corol beautiful purple. 



3. P. maculata Linn. : stem erect, scabrous and spotted ; leaves ob- 

 long-lanceolate, smooth, with the margin scabrous ; panicle oblong, 



