Pultensea 



( 249 ) 



Purshia 



mollis. 9", Ap., My., bl. alba, wh. 

 oflk'inalis, 1', spr., red, saccharata, 1', Je., pk. 

 viu. Snge of Bethlehem. 



PULTENSEA. 



A rather large genus (aril. Leguminosie) of green- 

 house evergreen shrubs. The plants are very 

 beautiful, and not difficult to grow. Propagation, 

 by cuttings of young shoots approaching ripeness, 

 in very sandy peat, beneath a bell-glass, in gentle 

 heat and shaded. Soil, fibrous peat and one-sixth 

 sharp sand, with a few nodules of charcoal. Firm 

 potting and free drainage are essential. They must 

 never be allowed to get dry. 



Principal Species : 



oboordata, Ap., yel. (si/n. stricta, 1' to 3', Ap., Jy., 



Euchilus obcordatus of yel. 



Ilninnii-u/ Hri/istfr W3). villosa, 1' to 3', Ap., yel. 



rnsra, '2', Ap., pk., ill (/. polygalifolia). 



round heads. 



Other Species and Varieties : 



daphuoides, 2' to 3', Je., mucronata (sfcpolifolia). 



Jy., yel. paleacea, 1J', My., yel. 



obcordata, Ivs. shorter, pedunculata, My., yel., 



broader. prostrate. 



dentata, 2', Je., yel., Ivs. polifolia, 2', My., yel. 



silvery beneath (_</. (si/ns. mucrouata and 



araentea). rosmarinif olia) . 



euchila, 1', My., yel. (syn. polygalifolia (see villosa). 



Spadostyles Sieberi). rosroarinifolia (see poli- 



flexilis, iV, My., yel., folia). 



solitary." scabra, 1 J ', Ap., deep yel. 



jiiniperiua, H', Je., yel., biloba, Ivs. two lobed 



flowers two or three (HI/ it. biloba of Hutu, n,;/ 1 



together, plant prickly. Kaaanne 2091). 



- latifoliti, Ivs. broader, stipularis, 2', Ap., yel., in 



sh.-irply pointed (syn. dense heads. 



cordata). subumbellata, 1', Ap., 



linophylla, 1', Ap., yel. yel., striped crim. 



(SIJH. retusa). tenuifoh'a, U', Ap., yel., 

 Ivs. nearly round. 



PULVINARIA. 



A genus of Scale insects, distinguishable by the 

 pad of wax secreted by the female beneath the 

 body. Kibesise, the Currant Scale; .Vitis, which 

 attacks Vines ; and floccosa, which is to be found 

 upon Camellias, are the most troublesome. Wash- 

 ing with kerosene emulsion (see INSECTICIDES), 

 tobacco water, and nicotine soap is effective. (See 

 <t ho INSECTS, and SCALE.) 



PUNICA. (POMEGRANATE, PUNIC or 

 CARTHAGINIAN APPLE.) 



Description. The only species of note in this 

 genus (tird. Lythrarieae) is a handsome, deciduous, 

 hardy tree of considerable economic value, since it 

 supplies the Pomegranates of commerce. It has 

 been widely cultivated in many of the warmer 

 parts of the globe from times of great antiquity. 

 Outdoors in this country its fruit seldom forms, 

 and thus, although the tree is hardy enough, it 

 should be given the shelter of a south wall if it 

 is desired that the flowers should be produced. 

 It is only grown for the beauty of its blooms. 



Propagation. By cuttings, suckers, layers, and 

 grafting upon the common species. The last 

 method is usually adopted for the named varieties, 

 of which there are several. 



Soil. It likes a good, loamy soil, although if the 

 soil be heavy, a fourth part of leaf mould and 

 iibinit a tenth part of the whole of road scrapings 

 will be an excellent addition. 



Other Cultural Points. For conservatory 

 decoration, large wooden tubs are the most con- 

 venient receptacles. Potting need only be done 

 once in five or six years for large specimens, 

 provided an annual top-dressing be given. 



Principal Species and its Varieties: 



Granatum, 15' to 30', Je., flore pleno, wh., with 



Sep., hdy., red, iu yel. calyx, double, 



bunches containing two liana, 5' to 6', fruits as 



to five fruits as big as large as a Nutmeg ; a 



a large Orange. Com- charming pot plaiit. 

 moil Pomegranate. 



PUPA. 



Imago or perfect insect, egg, maggot, chrysalis 

 or pupa. These are the stages in the life cycle of 

 insects, and the pupa is thus the last one before 

 the perfect fly. When, in the words of the ento- 

 mologist, the metamorphosis of the insect is 

 incomplete, the pupa resembles the perfect insect 

 to a considerable extent, although the wings are 

 always rudimentary. In this section, too, the 

 larva and the pupa resemble each other, and the 

 pupa is as voracious as the larva, although it is 

 larger in size. Examples are to be found in the 

 aphides, crickets, and grasshoppers. When the 

 metamorphosis is complete the pupa is quite 

 helpless, and totally unlike the insect which is to 

 be developed from it. It is, in fact, the quiescent 

 stage, and in most cases, although not in all, it is 

 protected by a cocoon, whose making was the 

 last act of the larva before it became a pupa. 

 Examples are to be found in the Coleoptera, 

 Hymenoptera, and Lepidoptera. Between these 

 two extremes there are many connecting links ; 

 thus the pupa of a wasp has its limbs slightly 

 movable, though bound down to its body, and it 

 cannot eat any food. 



Frequently the winter is passed under ground, 

 and it is in such cases that the gardener may carry 

 the war into the enemies' country by digging during 

 late autumn to expose the pupae of injurious 

 insects to the keen eyes of predatory birds. (For 

 further particulars, see INSECTS.) 



PUPALIA. 



Branching stove herbs and sub-shrubs (onl. 

 Amarantaceae). . Probably only atropurpurea, of 

 the species included, has been introduced. It is 

 an evergreen shrubby plant, propagated by cut- 

 tings, in sand, in a close frame, with bottom heat, 

 and liking a sandy loam. 



Principal Species : 



atropurpurea, 1J' to 2', Sep., dark pur., branches 

 purplish. 



PURSHIA (fif/n. KUNZIA and TIGAREA). 



A small genus two species only of dwarf hardy 

 shrubs (ord. Rosaceai). Propagation, by cuttings 

 of the young shoots in sand, in a close but not 

 heated frame, in early summer. Soil, loam two 

 parts, leaf mould one part, and sand. (For Purshia 

 of Sprengel, see ONOSMODIUM.) 



I'unnet (see Measures). 



Purification flower (see Galantlnts niralix). 



Purple Flowering Raspberry (see lliibvs odoratvs). 



I'lir/ilr Loosest rife (see Lythrum 8alicaria\. 



I'u r/ilc Mi'ilirli (see Medieago satira). 



Purple Osier (see Salix jrurpiirea*). 



Purple Wreath (sn- Petrifa volubilis). 



