DIAPENSIACEiE. 293 POLEMONIUM. 



3. r. PYRAMID a'liS. — .SCcm erect, rough ; Z«fl7)e5 cordate-ovate, acute,, 

 smooth; Jloicers in a dense, fastijriate-pyramidal panicle ; t< elk of tite calyx 

 erect. Native of the Middle and SoutJiern States. Stem spotted, 3 feet high, 

 bearing at top a dense pyramid of rich purple, honey-scented flowers, render- 

 ing this species one of the most ornamental of the flower o-arden. It continues 

 in flower all summer. Per. Pyramidul Lychnidea. 



4. p. MACULa'TA. — Slcm rough, erect, spotted ; leaves oblong-laneeo- 

 late, rough-edged, glabrous; panicle oblong, crowded; teeth of the calyx 

 recurved. The cultivation of this and the following species is similar to the 

 foregoing. Stem 2 feet high, covered with purple spots. Flowers red. 

 July. Aug. Per. Sjwlted Lychnidea. 



5. P. SUBULA'TA. — CtBspitose, hoary-pubescent; leaves linear, pun- 

 gent, ciliate ; pedicels few, terminal. A dwarf species on mountains in Penn. 

 in dense, turfy masses, spangled over in May with rose-colored flowers. 

 Corymbs few-flowered. Pedicels 3-cleft. Segments of the corolla wedge- 

 form, emarginate. Sepals subulate. Cultivated in borders. Per. Muss Pmk. 



2. P O L E xM O' N I U M . 



Calyx campaniilate, S-cleft; corolla rotafecnmpaniilate, 

 limb 5-loI)ed, erect, tube short, closed at Hie base hy 5 

 stameniferous valves; capsule 3-celled, 3-valved, cells many- 

 seeded. 



Gr. 7ro>.£ji4o«, war. Pliny relates that two kings fourrht for the merit of the 

 discovery of tlie virtues of the plant to which he gave tliis appellation. Herbs 

 with alternate, pinnately-divided leaves, l-'ls. terminal. Fil. dilated at base 

 and issuing from the ends of the valves. 



1. P. REPTANS. 



Stem smooth, branching, erect; leaves pinnately 7— 11-foliate, leaflets, oval- 

 lanceolate, acute ; fioiocrs terminal, nodding. A handsome plant of woods and 

 damp grounds in N. Y., &c., and sometimes cultivated. Stem ]2— 18 inches 

 high, weak, fleshy. Leaflets mostly 7, subopposite, smooth, entire, sessile, an 

 inch long and half as wide. Flowers numerous, rather large, on short petioles. 

 Segments of the calyx lanceolate-acute, persistent, much shorter than the tube 

 of the corolla. Corolla blue, lobes short, rounded at the ends. Anthers 

 introrse. 'R.ooi creeping. Per. Aincrlcua Greek-Valerian. 



2. P. CCERU'LEUM. — Stem smooth, simple, erect; leaves pinnately 

 11 — !7-foliate; floirers erect; calyx equalling the tube of the corolla. A 

 handsome, cultivated plant, native in England. Stems clustered, several 

 from the same root, about 2 feet high, hollow, stout, each dividino- at top into 

 a corymbose panicle. Leaves mostly radical, on long, grooved petioles; 

 leaflets all ses.sile, ovate-lanceolate, subopposite, oblique" odd one lanceolate'. 

 Flowers terminal, suberect. Corolla blue, about half an inch in diameter.' 

 June, July. Per. European Greek- J 'alcrian. 



/3. alba ; foioers white. 



ORDER XCIX. DIAPEx\SlACE.^. 



GiZ.— Sopals 5, much imbricated, surrounded at base with imbricated scales 



Cor.— Petals .'5, united, regular, imbricated in sestivalion. 



Sta.—5, equal, the filaments petaloid and inserted ou the corolla tube 



z* 



