124 PENTSTEMON-PHLOX. 



PENTSTEMON. 15-2. {BignonecB.) [From pente, five, and sterna, stamen. This plant, 

 though it is placed in the class Didynamia, has the rudiment of a fifth stamen ; from hence 

 its name.] 

 pubes"cens, (beard-tongue, w-p. J. 1\..) stem hairy ; leaves serrulate, lance-ob- 

 long, sessile; flowers panicled ; the barren filament bearded from the apex 

 to below the middle. Var. latifolia, has broad, smooth leaves. Var. ari- 

 gusiijolia, has narrow, hairy, obscurely denticulate leaves. 1-2 f. Hill- 

 sides. 

 IcBviga'lum, (p. J. Tj..) smooth; leaves ovate-oblong, clasping at the base, 

 slightly toothed, the lower ones entire ; flowers paniculate ; steril filament 

 bearded near the top. 1-2 f. Low grounds. ' 



PERIPLOCA. 18 — 5. {Apocynta.) [From /^er;, about, and ^fo/ce, twining.] 

 ^rcE'ca, (milk-vine, p. m. Yi.) climbing; leaves opposite, ovate, acuminate; 

 flowers hairy within, and terminal. 



PETALOSTEMON. 16 — 8. (Leguminosa.) [From pe/atore, a petal, and s^erea, a stamen, the 

 petals and stamens united form a tube.] 

 can"diduvi, [\v. Ju. %.) spike cylindric, peduncled ; bracts longer than the 



flower ; calyx glabrous; leaves lanceolate, in 3 pairs. 

 viola'ccum, (r-p. Au. Q\..) bracts about equal to the calyx ; little bracts spatu- 

 late, caducous ; calyx silky ; leaves linear, in 2 pairs. 

 PHACA. 16—10. (Leguminosai.') [A Greek word signifying lentil.] 

 villo'sa, (y. Ju. %.) nearly stemless, villose ; leafets oval, glabrous above ; pe- 

 duncles as long as the leaves ; legumes hoary ; villo.se, oblong. 



PHALARIS. 3—2. {Gramineae,.) [From pAaZos, shining, so named from the appearance of its 



seed.] 



america'na, (riband-grass, wild canary-grass, Ju. %.) panicle oblong, spiked ; 

 glumes of the calyx boat-shaped, serrulate; corolla unequal ; rudiments 

 hairy. Var. picta, leaves variously striped. This variety is the riband- 

 grass of the gardens. 2-5 f. 



PHASEOLUS. 16 — 10. {Leguminosm.) [From phaselos, a little boat, which its pods wera 

 thought to resemble.] 

 peren"nis, (wild kidney-bean, p. Ju. %..) twining, pubescent; leafets oyate, 



acuminate, 3-nerved; racemes 1-3, axillary, paniculate, longer than' the 



leaves; bracts minute; legumes pendulous, broad, falcate, mucronate; 



flowers large. Dry woods. 

 luna'tivs, (Carolina bean, Lima bean, g-w. Ju. ©.) twining; legumes cime- 



ter-form, sub-lunate, smooth ; seeds compressed. Ex. 

 vulga'ris, (common pole-bean, p. w. Ju. ©•) stem twining; racemes solitary, 



shorter than the leaves; peduncles in pairs ; bracts smaller than the calyx, 



spreading; legumes pendulous. From the East Indies. 

 na'nus, (bush-bean, six-weeks-bean, <v).) stem erect, smooth ; bracts large; 



than the calyx ; legumes pendulous, compressed, rugose; seeds variously 



coloured. Ex. 



PHILADELPHUS. 11—1. (Myrti.) [Fromphileo, to love, adelphos, a. hrother. This name 

 was first given to the Galium or bed-straw, because by its roughness it attached itself to 

 what was near.] 



inodo'rus, (scentless syringa, w. J. T7.) leaves acuminate, oval, entire; divis- 

 ions of the calyx acute; style undivided, longer than the stamens; stigmas 

 4, oblong; flowers large. S. 



coroTui'rius, (mock-orange, false syriuga, w. J. T^.) styles distinct; leaves 

 ovate, sub-dentate. Ex. 

 PHLEUM. 3—2. (GraminecB.) 



praten"se, (timothy grass, J. % and (^.) spike cylindric, caiyx mucronate- 

 awned ; keel ciliate ; awn shorter than the calyx ; culm erect. Introduced. 

 2-3 f. 



PHLOX. 5—1. (Polemonem.') [A Greek word signifying flame, from the bright colour of tho 

 flowers of some of its species.] 

 panicula'ta, (smooth-stem lichnidia, r. w. J. %.) glabrous, erect ; leaves lan- 

 ceolate, narrowing gradually, flat ; margins rough ; corymbs panicled ; di- 

 visions of the corolla rotmded ; calyx awned. Cultivated. 2-3 f. 

 subula'ta, (mountain pink, r. M. %.) csespitose, white-pubescent ; leaves linear^ 



