674 POLEMONIACEAE (POLEMONIUM FAMILY) 



1. Herbaceous, with flat (broad or narrow) leaves. 



* Stem strictly erect ; panicle pyramidal or ellipsoid, many-flowered; peduncles 



and pedicels very short ; corolla-lobes entire. 



1. P. paniculata L. Stem stout, 0.6-1.5 m. high, smooth, or puberulent or 

 villous above; leaves oblong-lanceolate and ovate-lanceolate, pointed, large, 

 tapering or rounded, the upper often heart-shaped at the base ; panicle ample, 

 pyramidal-corymbed ; calyx smooth or glandular-hispid, the teeth awn-pointed; 

 corolla pink-purple varying to white. (Including P. acuminata Pursh, P. glan- 

 duiosa Shuttlw., and P. amplifolia Britton.) Open woods, Pa. to 111., Kan., 

 and southw. ; escaped from cultivation northw. July-Sept. Highly variable 

 in outline of leaf, pubescence of leaves, stems, calyx, and corolla, but without 

 concomitant characters. 



2. P. maculata L. (WILD SWEET WILLIAM.) Smooth, or barely roughish ; 

 stem spotted with purple, rather slender, 3-9 dm. high ; lower leaves lanceolate, 

 the upper nearly ovate-lanceolate, tapering to the apex from the broad and 

 rounded or somewhat heart-shaped base ; panicle narrow, ellipsoid, leafy below; 

 calyx-teeth triangular-lanceolate, short, scarcely pointed ; corolla pink-purple. 

 Rich woodlands and along streams, Ct. to Minn., and southw. June-Sept. 

 Var. CANDIDA Michx. White-flowered; commonly with spotless stem. With the 

 ordinary form. 



* * Stems, at least the flowering ones, ascending or erect ; flowers in corymbed 



or simple cymes; corolla-lobes obovate or obcordate. 



- Calyx-teeth triangular-subulate; corolla-lobes rounded, entire; glabrous or 



nearly so. 



3. P. ovata L. Stems ascending, 2.5-6 dm. high, often from a prostrate base ; 

 leaves oblong-lanceolate, or the upper ovate-lanceolate, and sometimes heart- 

 shaped at the base, acute or pointed ; flowers pink or rose-red, crowded, short- 

 peduncled ; calyx-teeth short and broad, acute. Woods, Pa. to Ala. May- 

 July. 



4. P. glabSrrima L. Stems slender, erect, 0.3-1 m. high ; leaves linear-Ian- 

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

 times revolute margins), 5-12 cm. long, tapering gradually to a point ; cymes 

 few-flowered and loosely corymbed ; flowers peduncled, pink or whitish ; calyx- 

 teeth narrower and very sharp-pointed. Prairies and open woods, n. Va. to O. 

 and Minn., s. to Fla. and Mo. June, July. 



t- -i- Calyx-teeth long and slender; more or less hairy or glandular-pubescent. 



** No runners or prostrate leafy shoots. 



6. P. pilbsa L. Stems slender, nearly erect, 25 dm. high, usually hairy, 

 as are the lanceolate or linear leaves (2.5-10 dm. long), which commonly taper 

 to a sharp point ; cymes at length open ; calyx-teeth slender, awl-shaped and 

 awn-like, longer than the tube, loose or spreading ; lobes of the pink-purple or 

 rose-red (rarely white) corolla obovate, entire. Dry or sandy woods, prairies, 

 etc., Ct. to Ont., Man., and southw. May, June. 



6. P. amo&na Sims. Stems ascending, 1.5-5 dm. high, mostly simple ; leaves 

 broadly linear, lanceolate, or ovate-oblong, abruptly acute or blunt, 2-5 cm. long, 

 on sterile shoots often ovate; cyme mostly compact and sessile, leafy-bntcted; 

 calyx-teeth awl-shaped or linear, sharp-pointed, but seldom awned, rather longer 

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

 notched), purple, pink, or sometimes white. Dry hills and barrens, Va. to Ky.. 

 s. to Fla. May, June. 



++ +* Leafy shoots from the base creeping or decumbent ; leaves rather broad. 



7. P. stolonifera Sims. Runners creeping, bearing roundish-obovate smooth- 

 ish and thickish leaves; flowering stems (1-2.5 dm. high) and their oblong or 

 ovate obtuse leaves (1-2.5 cm. 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. (P. reptans Michx.) 



