372 POLEMONIACE^E. (POLEMONIUM FAMILY.) 



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

 calyx-teeth triangular-lanceolate, short, scarcely pointed; corolla purple (sometimes 

 white, when it is P. suaveolens, Ait.). Lower branches of the panicle rarely 

 elongated, so as to become pyramidal, when it is P. pyramidalis, Smith. Rich 

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



* * Stems ascending or upright, often from a dtcumbent base: flowers in terminal co- 



rymbed cymes : the whole plant smooth and glabrous : lobes of the corolla round and 

 entire : calyx-teeth short, triangular-lanceolate. 



3. P. Carolina, L. Stems ascending (-2 high), often from a pros- 

 trate base ; leaves oblong-lanceolate, or the upper ovate-lanceolate, and sometimes 

 heart-shaped at the base, acute or pointed ; flowers crowded, short-peduncled ; 

 calyx-teeth acute. Var. ovlxA, Benth., has broader leaves (P. ovata, L.). 

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

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

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



4. P. glab6rrima, L. Stems slender, erect (1- 3 high) ; leaves linear- 

 lanceolate or rarely oblong-lanceolate, 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 less clammy-pubescent, as well as the calyx and the oblong, lanceolate, or linear 

 leaves: flowers in terminal corymbed cymes, mostly pedicelled : 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 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. (P. aristata, Michx. P. aristata & pilosa in part, Benth. in 

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

 ward. May, June. Leaves 1 ' - 2|' long, 1" - 3" wide. 



6. P. prociimbens, Lehm. Stems ascending (-l high), 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, leafy- 

 bracted; 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. (P. pilosa, W^alt., Michx., Ell., 

 Benth. in part, not L. P. pilosa, var. ? Walteri, Ed. 2. P. Walteri, Chapm-m. 

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

 Virginia, and southward. May, June. 



7. P. r^ptans, Michx. Runners creeping, bearing roundish-obovate smooth- 

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

 obtuse leaves (' 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 



