AN ENCYCLOPAEDIA OF HORTICULTURE. 



61 



Pelargonium continued- 



winter. Attend to repotting and tying those large 

 enough for flowering early in spring, and provide them 

 with a light house or pit, with a temperature of about 

 55deg. Here they will soon grow rapidly, and timely 

 attention must be given to tying the new growths to 

 cover their trellis. Some of the sorts are not trailers; 

 the habit will, of course, distinguish between them at 

 once. Ivy-leaved Pelargoniums are much benefited by 

 frequent syringings up to the time they come into 

 flower ; they also require plenty of water at the root. 



INSECTS. Pelargoniums are not much injured by insects, 

 with the exception of Aphides, particularly Green Fly. 

 These invariably affect all the sections more or less, 

 though not the Zonals, and those allied to them, so 

 much as the others. Fumigating is the best remedy ; it 

 should be practised rather frequently in spring, for pre- 

 vention as well as cure. It is specially important that 

 the plants should be free from insects at the time they 

 come into blossom, as many of the flowers would be de- 

 stroyed by measures being afterwards taken to effect an 

 eradication. 



P. abrotanifolium (Southernwood-leaved).* fl. white or rosy, 

 the two broader upper petals having a red spot ; calyx tube much 

 longer than the pedicels. May. I. powdery, fan-shaped, three- 

 parted ; lateral segments deeply two or three-lobed ; terminal 

 one multifld, with linear, channelled, blunt lobes, h. 3ft 1791. 

 A slender, canescent shrub. (Sw. Ger. 351.) 

 P. angulosnm (angular), ji. purple, with dark streaks, panicled ; 

 pedicels and calyces densely hairy and rough ; petals twice as 

 long as the acuminate sepals. Summer. I. shortly stalked, 

 truncate or broadly-cuneate at base, with three to five shallow, 

 angular, acute, toothed lobes. 1724. A large bush. From this 

 species, P. cucidlatum, and P. grandiflorum, have originated 

 those races of garden plants known as Show, Decorative, and 

 Fancy Pelargoniums. 



P. apiifolium (Parsley-leaved). JL sub-sessile ; calyx tube three 

 or four times longer than the reflexed segments ; petals dark, 

 with a pale border, obovate, reflexed. June. I. pinnati-partite , 

 pinnae petiolate, pinnatifld-pinnate ; segments cuneate, flat, 

 laciniate, glabrous and glaucous. Stem thick and fleshy ; 

 flowering branches slender, herbaceous. 1800. 

 P. ardens (glowing).* fl. bright scarlet, shaded with a darker 

 colour ; umbels many-flowered. Summer. I. hairy, cordate at 

 base, oblong, unequally lobed, sometimes ternate. Stem thick, 

 suffruticose. h. lit. to lift. This very fine garden plant is a 

 hybrid between P. fulijidum and P. lobatum. (L. B. C. 139 

 Sw. Ger. 4.) 



P. betnlinnm (Birch-like).* JL purple, with dark streaks; 

 pedicels and calyx silky ; petals twice as long as the sepals ; 

 peduncles deflexed, three or four-flowered. July. I. seldom lin. 

 long, shortly petiolate, oval or ovate, obtuse, unequally toothed, 

 sub-glabrous or scaberulous. h. 3ft 1759. A rather slender, 

 erect shrub. (B. M. 148.) 



P. bicolor (two-coloured).* fl. nearly sessile ; calyx segments 

 reflexed ; petals purple, with a pale border, obovate. July. L on 

 long petioles, cordate at base, pmnatifidly lobed, 3in. to 4in. long, 

 and nearly as broad, softly pubescent, margins dentate ; lateral 

 segments broadly cuneate, bilobed and cut, the terminal one 

 tritid and toothed. Stems shrubby, succulent, sparingly 

 branched, h. 1ft. to 2ft 1778. (B. M. 201 ; Sw. Ger. 97.) 

 P. Bowkerl (Bowker-s).* fl., calyx tube IJin. long; petals 

 bipartite, eight to ten lines long, purple at base, with yellow, 

 capillary, fnnge-like lobules ; umbel many-flowered ; scape 12in. 

 to 14in. high. Summer. I., radical ones on petioles 5in. to 6in. 

 long, decompound, linear-lanceolate, 5in. to 6in. long, each seg- 

 ment as finely divided as a Fennel-leaf. Stem short and succu- 

 lent 1864. Herb. (B. M. 5421.) 



P. capitatuin (capitate). /. 



apit 

 Su 



. . rosy-purple, in dense, many- 



flowered heads. Summer. I. long-stalked, cordate, three to 

 five-lobed ; lobes obtuse and rounded, toothed. 1790. A shrub 

 with branches, in a wild state, generally trailing on the ground. 

 This species is largely cultivated in the Mediterranean region 

 for an essential oil distilled from the leaves, which is used as a 

 perfume, and also for adulterating otto of roses. Probably, 

 P. capitatum is one of the parents of the garden hybrid ROLLIS- 

 SON'S UMQUE, a handsome, free-flowering plant with purplish- 

 crimson flowers. 



P. carnosnm (fleshy), fl. generally white, small, on long, branched 

 peduncles ; pedicels patently setose ; umbel many-flowered, with 

 short bracts. May. I. 2in. to 4in. long, shortly petiolate, oblong, 

 deeply pinnatifid, somewhat fleshy, cut nearly to the midrib ; 

 segments flat, sharply cut or pinnatifid. Stem 1ft. to 2ft hih 

 succulent, clumsy, not much branched. 1724. (Sw. Ger. 98. 



P. comp turn (decked).* fl. many in an umbel ; calyx villous ; petals 

 nearly obcordate, the upper ones larger, bright pink, lighter at 

 the base, and with a dark purple spot in the centre, and numerous 



stripes below it, the lower ones darker. 



tly lobed, unequally and rather 

 Stem erect, branched, shrubby, 

 255.) 



Pelargonium continued 

 I. kidney-shaped, rounded, slightl 

 deeply notched ; petioles slender. J 

 succulent Hybrid. (Sw. Ger. 255 

 P. cordatnm (cordate-leaved), jl. purple, white ; calyx and pedi- 

 cels generally densely villous ; petals twice as long as the sepals ; 

 peduncles branched or panicled, the partial ones short and many- 

 flowered. May. 1. long-petiolate, cordate, acute, denticulate, 

 and sometimes repand-lobulate; stipules subulate from a broad 

 base. h. 3ft. 1774. An erect, much-branched, villous or sub- 

 glabrous shrub. (B. M. 165 under name of P. cordi/olium.) 



FIG. 63. PELARGONIUM ENDLICIIERIANUM. 



P. orlspnm (curled-leaved).* fl. purple ; sepals oblong, acuminate ; 

 petals narrow ; peduncles short, two or three-flowered. September. 

 I. Jin. to liin. long, distichous, shortly petiolate, fan-shaped, 

 truncate or cuneate at base, trilobulate or deeply three-lobed, 

 coarsely toothed, rigid and rough, curled, strongly scented. 

 h. 3ft 1774. A slender, much-branched shrub. (Sw. Ger. 

 383.) 



P. cncnllatnm (hooded-leaved). /. purple ; petals twice as long 

 as the lanceolate-acuminate sepals ; pedicels and calyx silky. 

 Summer. 1. long-stalked, remform-cupped, denticulate, very 

 soft. 1690. This species is the parent of a large number of 

 garden hybrids : some of the double forms are very pretty. 



P. dentlcnlatnm (toothed), fl. lilac or rosy -purple; upper 

 petals emarginate or bifid. Summer. 1. long-stalked palmati- 

 partite, glabrous and viscid above, hispid beneath ; lobes simple 

 or pinnatifid, linear, flat, coarsely toothed. 1789. A slender, 

 half-herbaceous species. (Sw. Ger. 109.) 



P. echinatum (bristly).* /. mostly white, with a dark red spot 



the upper petals, but sometimes deep purple ; petals euiarginate ; 



pedicels very short ; partial peduncles six to eight-flowe 



I. long-petiolate, cordate-ovate, obtuse, somewhat three, five, or 



vered. Jui 



seven-lobed ; lobes rounded, crenulate or bicrenulate, pubescent 

 above, white-tomentose beneath. Stem fleshy, armed with per- 

 sistent, spine-like stipules, h. 1ft 1789. Shrub. (B. M. 309; 

 Sw. Ger. 54.) 



