372 roLEMONiACK.E. (poLEMOMUii fa:\iily.) 



and rounded or somewhat heart-shaped base ; prtnide narrow, oblong, leafy below •, 

 calyx-tetth trinnrjiilar-lanccoldtc, .s/wrt, scarcely pointed; corolla purple (sometimes 

 white, when it is P. suaveoleiis, Ait.). Lower branches of the ])anicle rarely 

 elongated, so as to become pyraniidid, when it is P. pyramidalis. Smith. — Ricli 

 woods and river-banks, N. Penn. to Wisconsin, and southward. June. 



* * Stems ascmdintj or uprigid, ojlenfrom a dicambent base: Jluwers in terminal co- 



rijinbfd cymes: the whole plant smooth and <jlahi ous : lobes of tin corolla round and 

 entire : calj/x-teeth short, triangular-lanceolate. 



3. P. Carolina, L. Stems ascending (^°-a° high), often from a pros- 

 trate base ; leavi^s oblong-lanceolate, or the upper ovate-lanceolate, and sometimes 

 licart-sliaped at tiie base, acute or i)ointed ; flowers crowded, short-pcduncled ; 

 ctilijx-teeth acute. — Var. ovXta, Benih., has broader leaves (P. ovata, L.). — 

 Var. xfTiDA, Benth., has narrower leaves (P. nitida, Pursh), and verges to the 

 next. — Woods, W. Pennsylvania to Michigan, Virginia, and southward. June, 

 July. — Corolla 1' long; the limb I' broad, pink-purple. 



4. P. glaberrima, L. Stems slender, erect (1°- 3° high) ; leaves linear- 

 lanceolate or rarely obiong-lanciolute, very smooth (except the rough and sometimes 

 revolute margins), tapering gradually to a point (3' -4' long) ; cymes few-flow- 

 ered and loosely corymbed; flowers peduncled (pink or whitish); calyx-teeth 

 sharp-pointed. (P. carnea, Sims. P. revoluta, Aikin.) — Prairies and open woods, 

 Ohio and Wisconsin to Virginia and southward. July. 



* * * Stems ascending (or in No. 5 erect) from a spreading or prostrate base, more 



or Ics'i clammy-pubescent, us ivell us the calyx and the oblong, l<inc<olate, or linear 

 leaves: flowers in terminal corymbed cymes, mostly pedicclled: calyx deeply cleft, 

 the teeth linear-awl-shaped or setaceous. 



5. P. pildsa, L. Stems slender, nearly erect (1°-1^° high), usually hairy, 

 as are the lanceolate or linear leaves, which commonly tapei- to a sharp point ; cymes 

 at length open ; calyx-teeth slender awl-shaped and awn-like, longer tlian the tube, 

 loose or spreading ; lobes of the pink-purple or rose-red (rarely white) corolla 

 obovate, entire. (P. aristata, Miclix. P. aristata & pilosa in part, Benth. in 

 DC.) — Borders of thickets and prairies, New Jersey to Wisconsin and south- 

 ward. May, June. — Leaves l'-2^' long, l"-3" wide. 



6. p. prociimbens, Lehm. Stems ascending (j°-l^° liigli). mostly 

 simple ; leaves broadly linear, lanceolate or ovate-oblong, abruptly acute or blunt 

 (^' - 1^' long, on sterile shoots often ovate) ; cyme mostly compact and sessile, leaf//- 

 braeted; calyx-teeth aivl-shaped or linear, sharp-pointed, but seldom awned, rather 

 longer than the tube, straight ; lobes of the corolla obovate and entire (or rarely 

 notclied), purple, pink, or sometimes white. (P. pilosa, Wtdt., Michx., Ell., 

 Benth. in part, not L. P. pilosa, var. ? Walter!, Ed. 2. P. Walteri, Chapman. 

 P. procumbens, Lehm. is a small form.) — Dry hills and barrens, Kentiuky, 

 Virginia, and southward. May, June. 



7. P. l'6ptans, Michx. Runners creeping, bearing round ish-olmrate smooth- 

 ish and thiekisli leaves; flowering stems (4' -8' high) and their oblong or ovate 

 obtuse Uavis (V long) pubescent, often clammy; cyme close, few-flowered ; calyx- 

 teeth linear-awl-shaped, about the length of the tube ; lobes of the reddish-purple 

 corolla round-obovate, mostly entire. — Damp woods, Pennsylvania, Kentucky, and 



