POLE^rONIACE^E. (POLEMON^M FAMILY.) 331 



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

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

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

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

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

 woods, Ohio and Wisconsin to Virginia and southward. July. 



* # # Sterns ascending {or in No. 5 often erect) from a spreading or prostrate base, 

 more or less chimin y-pubescent, as well as the calyx and the olilong, lanceolate, or 

 linear leaves : flowers in terminal corymbed cymes, mostly peduncled: calyx deeply 

 cleft, the teeth linear-awl '^shaped or setaceous. 



5. P. pilosa, L. Stems slender, nearly erect (1°-U° high), usually 

 hairy, as arc the lanceolate or lance-linear leaves, which commonly taper to a sharp 

 point ; cymes at length open ; calyx-teeth slender dwl-sliaped and ami-like, longer 

 than the tube ; lobes of the pink or rose-red corolla obovate, entire. (P. aristata, 

 Michx. P. aristata & pilosa in part, Benth. in DC.) — Borders of thickets and 

 prairies, New Jersey to Wisconsin and southward. May, June. — Leaves 1' - 2' 

 long, H"-3" wide. 



Var.1 Wiilteri. Stems ascending (J°-lJ° high), mostly simple; leaves 

 broadly linear, lanceolate or ovate-oblong, abruptly acute or blunt ( 1 ' — 1 A ' long, on 

 sterile shoots often ovate) ; cyme compact and sessile, leafy-bracted; calyx-teeth 

 rather shorter and broader; corolla purple. (P. pilosa, Walt., Afichx., Ell., 

 Benth. in part, not of L.) — Barrens of Kentucky (Short), Virginia, and south- 

 ward. May. — Ordinarily this appears quite distinct from the Linneean P. 

 pilosa, which is the P. aristata of Michaux. 



6. P. if plans, Michx. Runners creeping, bearing mundish-obovate smooth- 

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

 obtuse leaves (£' long), clammy-pubescent; cyme close, few-flowered; calyx-teeth 

 awl-shaped-linear, acutish, about the length of the tube ; lobes of the reddish-pur- 

 ple corolla round-obovate, entire. — Damp woods, Penn., Kentucky, and southward : 

 also cultivated. May, June. — Flowers showy: tube of the corolla 1' long; 

 limb 1' broad. 



7. P. (livaricfsta, L. Stems spreading or ascending from a decumbent 

 base (9'- 18' high) ; leaves oblong-ovate or the lower oblong-lanceolate (H' long), 

 acutish ; cyme corymbose-panicled, spreading, loosely-flowered ; peduncles 

 slender; calyx-teeth slender awl-shaped, much longer than the tube; lobes of the 

 pale lilac or bluish corolla obcordate or ivedge-oliovate and notched at the end, or often 

 entire (var. Laphamii, Wood), j'-§' long, equalling or longer than the tube, 

 with rather wide sinuses between them. — Rocky damp woods, mountains of 

 Virginia to N. New York, Wisconsin, and northward. May. 



8. P. bifida, Beck. Stems ascending, branched fo'- 8' high) ; leaves I'n- 

 ear, becoming nearly glabrous (^' - 1 1 -' long, H" wide) ; flowers few, on slen- 

 der peduncles; calyx-teeth awl-shaped, about the length of the tube; lobes of the 

 pale purple corolla 2-clrft to or below the middle (£' long), equalling the tube, the 

 divisions linear-oblong. — Prairies of Illinois, Mead (and Missouri). May. 



* * * * Stems creeping and tufted in broad mats, the short flowering shoots ascend 

 ing glandular-pubescent ; the rigid narrow leaves crowded and fascicled. 



