POLEMONIACE^K. (POLEM.ONIUM FAMILY.) 



* * Stems, at least the flowering ones, ascending or erect; jlowcrs in cori/mbed 

 or simple cymes ; corolla-lobes obouate or obcordate. 



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



nearly so. 



3. P. ovata, L. Stems ascending (-2 high), often from a prostrate 

 bust-; 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. (P. Carolina, L.) Open 

 woods, in the mountain region from Penu. to Ala. June, July. 



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

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

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

 few-nowered and loosely corymbed ; flowers peduncled (pink or whitish); 

 ca/i/.r-teeth narrower and veiy sharp-pointed. Prairies and open woods, N. 

 Va. to Ohio and Minn., south to Fla. and Mo. July. 



-i- *- Cal 'fix-teeth loruj and slender; more or less hairy or glandular-pubescent. 

 M- No runners or prostrate sterile shoots. 



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

 as are the lanceolate or linear leaves (1 -4' long), which commonly taper to a 

 sharp point; cymes at length open; calyx-teeth slender awl-shaped and aim- 

 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., 

 N. J. to Minn., south to Fla. and Tex. May, June. 



6. P. amdena, Sims. Stems ascending (-H high), mostly simple; 

 leaves broadly linear, lanceolate or ovate-oblong, abruptly acute or blunt ($- H' 

 long), on sterile shoots often ovate; cyme mostly compact and sessile, leaf y- 

 brarted ; calyx-teeth aid-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. procumbens, Grai/ ; 

 not Lehm.) Dry hills and barrens, Va. to Ky., south to Fla. 



*+ -M- Sterile shoots from the base creeping or decumbent; leaves rather broad. 



"! P. reptans, Michx. Runner* rrrepinq, bearing round ish-oboratesmootii- 

 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 liuear-awl-shaped, about the length of the tube; lobes of the red- 

 dish-purple corolla round-obovate, mostly entire. Damp woods, in the Alleghany 

 region, Peun. to Ky. and Ga. May, June. 



8. P. divaricata, L. Stems spreading or ascending from a decumbent 

 base (9-18' high) ; lea res ob/onrj- or lance-orate or the lower oblong-lanceolate 

 (!-' long), acutish ; cyme corymbose-panicled, spreading, loosely-flowered; 

 calyx-teeth slender awl-shaped, longer than the tube ; lobes of the pale lilac in- 

 bluish corolla obcordate or wedge-obovate and notched at the end, or often entire, 

 |- it' long, equalling or longer than the tube, with rather wide sinuses between 

 them. Rocky damp woods, W. Canada and N. Y. to Minn., south to Fla. 

 and Ark. May. A form occurs near Crawfordsville, Ind., with reduced flow- 

 ers, the narrow entire acuminate corolla-lobes scarcely half as long as the tube. 



