1466 



PUERARIA 



PURSLANE 



ful for covering arbors and verandas. From a well- 

 established root, vines will grow 40-60 ft. in a single 

 season, producing a profusion of very large Ivs. In the 

 North the plant dies to the ground in the winter, but in 

 the South the top becomes woody. The large fleshy root 

 assumes most curious shapes, the main branches often 

 being 4-5 ft. long. Georgeson writes of the plant in 

 Japan: "The roots are fleshy and yield starch of excel- 

 lent quality ; the tough fiber of the inner bark is manu- 

 factured into a sort of cloth which combines fineness with 

 remarkable strength; and in certain situations the vine 

 is unparalleled for ornament and shade." The fls. are 

 mostly borne on the woody stems, but these stems usu- 

 ally do not persist north of Philadelphia, and even rarely 

 there. With age, the tops are more likely to survive the 

 winter. Prop, by division of the roots, or by seeds when 

 they can be had; also by cuttings and layers. L. pj. B. 



PUFF-BALLS. See page 1045. 



PULMONARIA (Latin, lung; the herb having been 

 considered a remedy for diseases of the lungs). Bor- 

 ragindcece. LUNGWORT. About 6 species of mostly 

 European perennial herbs, with creeping rootstocks and 

 rather large, blue or purple fls. in terminal cymes. 

 Calyx tubular-bell-shaped, 5-toothed or cleft to the 

 middle only; corolla-tube straight, naked or pilose; 

 limb 5-lobed; stamens included in corolla-tube: nuts 

 smooth. Mertensia has a short, open, more deeply-cleft 

 calyx, exserted stamens, 

 and slightly fleshy nuts. 

 Pulmonarias are of easy 

 cultivation, preferring 

 light soil, not very dry, 

 in open or partially 

 shaded positions. They 

 are readily propagated 

 by division. Divide the 

 clumps every two or 

 three years. 



A. Lvs. white-spotted. 

 B. Plant very glandular. 

 saccharata, Mill. 

 BETHLEHEM SAGE. Fig. 

 2015. Height 6-18 in. 

 stem setose-hairy, with 

 articulate glands : radical 

 Ivs. oval - acuminate at 

 both ends, slightly de- 

 current, larger than in 

 following species : fls. 

 whitish or reddish vio- 

 let. April, May. In shady 

 places, Europe. 



BB. Plant rough -hairy 

 but slightly if at all 

 glandular. 



officinalis, Linn. (P. 

 mactildta, F. G. Dietr.). 

 Height 6-12 in.: radical 

 Ivs. in distinct tufts, 

 ovate -oblong to nearly 

 linear, on long footstalks, 

 2015. Pulmonaria saccharata. coarsely hairy, more or 

 (X %.) less spotted: fls. in ter- 



minal forked cymes^ red 

 fading to violet. April. Woods, Europe. 



AA. Lvs. entirely green. 



angustifolia, Linn. Height 6-12 in. : stem setose- 

 hairy, having a few glands: radical Ivs. elliptic-lanceo- 

 late to lanceolate, decurrenton petiole: fls. blue. April, 

 May. Woods, Europe. 



P. Alba, Hort. Saul, is presumably Mertensia Sibirica, var. 

 alba. P. Sibirica. See Mei'tensia Sibiriea. P. Virginica. See 

 Mertensia pulmonarioides. ji\ "^ BARCLAY. 



PULSATlLLA. See Anemone. 

 PULSE. See Legumes. 



PULTEN2EA is one of many genera of Australian 

 shrubs of the legume family with clusters of yellow 

 pea-shaped flowers. Pultenreas are practically unknown 

 in American floriculture. Seventy-five species are dis- 

 tinguished in Flora Australiensis 2:107-140 (1864). For 

 general purposes these plants are presumably inferior 

 to Cytisus Canariensis. 



PUMPKIN. See Squash. 



PUNICA (Punicus, Carthaginian: hence Malumpuni- 

 cum, "apple of Carthage," an early name of the Pome- 

 granate). Lythrdcece. Genus of 1 species. 



Granatum, Linn. POMEGRANATE, which see. A large 

 deciduous shrub or small tree, with mostly opposite or 

 clustered oblong or obovate obtuse entire, glabrous and 

 more or less shining Ivs.: fls. axillary, solitary or in 

 small clusters, orange-red, showy; calyx tubular, the 

 short lobes 5-7 and persistent on the top of the fruit (as 

 on an apple) ; petals equal in number to the calyx-lobes, 

 inserted between the lobes, lanceolate to obovate, 

 wrinkled: ovary imbedded in the calyx-tube (or recep- 

 tacle-tube), comprising several locules or compartments 

 in two series (one series above the other), ripening into 

 a large, juicy, many-seeded pome-like berry. Persia to 

 N. W. India. A handsome plant, with showy fls. 1 in. 

 across in summer. Hardy as far north as Washington 

 and Baltimore. It is also grown as a conservatory 

 plant, blooming in winter as well as in summer. For 

 ornament, the double-flowering kinds are the most 

 popular (F.S. 13:1385, as P. Granatum Legrellei). 

 There are many named varieties. The treatment of the 

 fruit-bearing varieties is discussed under Pomegranate. 



Var. nana, Hort. (P. nana, Linn.). Dwarf Pome- 

 granate, seldom growing higher than a man, and usually 

 treated as a pot-plant in the North. It is the best kind 

 for greenhouse use. The double-fld. form is most com- 

 mon. B.M. 634. It is as hardy as the species, and is 

 suitable for outdoor work where the climate is not too 

 severe. On the Pacific coast it is grown as a hedge 

 plant as far north as San Francisco. Both this and the 

 species are easily grown by cuttings of dormant wood, 

 as currants are, but the cuttings should be started in- 

 doors with some heat. j j> jj. B. 



PURIFICATION FLOWER. 



Galanthus nivalis. 



Same as snowdrop, 



PURPLE CONE-FLOWER. EcMnacea. 

 PURPLE WREATH. Petrea. 



PURSHIA (after F. T. Pursh, or Pursch, as is the 

 original spelling of his name (1774-1820); born at 

 Grossenhain, in Saxony, not at Tobolsk, in Siberia, as 

 is frequently stated ; traveled in this country and wrote 

 a flora of North America.) Itos&cece. Low deciduous 

 spreading shrub with alternate, mostly fascicled, small, 

 cuneate and tridentate Ivs., rather small, solitary, yel- 

 lowish fls. and inconspicuous fruits. Of little ornamen- 

 tal value with its sparse grayish or bluish green foliage 

 and its rather inconspicuous fls., and but rarely culti- 

 vated. Probably hardy as far north as Mass., requiring 

 sunny position and well-drained peaty soil; an excess 

 of moisture, especially during the winter, proves fatal 

 to it. Prop, by seeds and probably by layers. But one 

 species, native of western N. America and allied to Cer- 

 cocarpus: petals 5; stamens numerous; pistils 1 or 

 sometimes 2 : f r. a pubescent leathery akene exceeding 

 the persistent calyx. 



tridentata, DC. Diffusely branched shrub, attaining 

 5, rarely 10 ft.: Ivs. cuneate-obovate, 3-lobed at the 

 apex, whitish pubescent beneath, %-% in. long: fls. 

 solitary on short branchlets, almost sessile, yellowish, 

 about % in. across: fr. ovate-oblong, acuminate. April 

 -July. Ore. to Wyoming, New Mex. and Calif. B.R. 

 17:1446. Var. glanduldsa, Jones (P. glandulosa, Cur- 

 ran), is glandular and has very small, almost glabrous 

 Ivs., sometimes pinnately 5-lobed. ALFRED REHDER. 



PURSLANE. Portulaca oleracea. 

 PURSLANE, WINTER. Montia perfoliata. 



