154 



THE DICTIONARY OF GARDENING, 



Fittospornm continued. 



P. Toblra (its native name).* ft. white, fragrant ; peduncles one- 

 flowered, pubescent, disposed in aggregate umbels. March to 

 August. I. obovate. obtuse, coriaceous, smooth, h. 12ft. Japan, 

 1804. Half-hardy ehrub. See Fig. 193. (B. M. 1396.) 

 P. undulatum (wavy-leaved).* ft. white ; peduncles terminal, 

 aggregate, pubescent, branched, many-flowered. February to 

 June. I. oval-lanceolate, undulated, tapering at both ends, 

 glabrous, h. 10ft. Australia, 1789. Half-hardy shrub. (A. B. B. 

 383 ; B. R. 16.) 



P. viridiflornm (green-flowered).* ft. greenish-yellow, Jasmine- 

 scented; panicle somewhat globose, terminal, glabrous. May. 

 I. obovate, retuse, cuneate at the base, shining, under surface 

 reticulated, h. 6ft. Cape of Good Hope, 1806. Greenhouse 

 shrub. See Fig. 194. (B. M. 1684.) SYN. P. xinense. 

 PLACEA (said to be derived from the native name 

 in Chili). OBD. Amaryllidece. A genus comprising 

 (according to Mr. Baker) about five species of greenhouse, 

 bulbous plants, natives of Chili, and closely related to 

 Hippeastrum, from which they differ in having a perfect 

 evolute corona. Flowers many in an umbel, pedicellate ; 

 perianth somewhat funnel-shaped, slightly decliriate, with 

 an exceedingly short tube. Leaves linear, carinate. Hen- 

 Max Leichtlin, a wonderfully successful cultivator of 

 choice bulbous and other plants, says .- " Placea is one 

 of those bulbs which will not be pot-bound. I either 

 plant them in a walled frame, which is kept free of 

 frost, or in a low house which has a border on the 

 south side, and is kept between 37deg. and 40deg. 

 Fahr. at night, and leave them well alone. They go to 

 rest about August, and push about December, flowering 

 in May. In a pot. they ought to have their exact time 

 of rest, and must be buried in the soil, which ought to 

 be very rich ; but in pots they are not certain to flower. 

 They must be planted with at least an inch of soil 

 over their necks, and they prefer a loose soil. I use 

 thoroughly-decomposed cow-manure (three and four years 

 old), mixed, during decomposition, with one-third silver 

 sand." The three best-known species are here described. 



FIG. 195. FLOWERS OK PI,ACEA 



P. Arzra (Arza's). ft. pale yellow, lined with purple ; corona 

 monophvllous, base yellow, apex purple ; umbel three to five- 

 flowered ; scape IJft high. I. two, glaucous 9in long iin 

 broad. Bulb 2iin. in diameter. See Fig. 195. 



P. grandiflora (large-flowered). /. white, freely striped with 

 bright crimson, large; scape erect, terminating in an umbel of 

 several handsome flowers. I. few, linear, long, rounded and 

 flstulose at the margin. 1869. This, the finest species of the 

 genus, resembles P. ornata, but is much larger. (I. H. 574.) 



P. ornata (adorned), ft. snow-white, lined with brilliant ver- 

 milion within; segments spathulate - oblong ; corona white 

 scarlet at apex ; scape Bin. to 9in. high, four to seven-flowered! 

 May. 1. linear, shining, obtusely keeled below. 1840. (B. R. 



The part on which the ovules 

 Quoit-shaped, or like a flat 



PLACENTA. 



originate. 



PLACENTIFORM. 

 cake in form. 



PLACODIUM. A synonym of Plocama (which see). 



PLACOMA. A synonym of Plocama (which see). 



PLADERA. A synonym of Canscora (which see). 



PLAGIANTHUS (from plagios, oblique, and anthos, 

 a flower ; referring to the usually unequal-sided petals). 

 Cotton-tree ; Ribbon-tree. OBD. Malvaceae. A genus 

 comprising about eleven species of greenhouse or half- 

 hardy shrubs, or rarely herbs, natives of Australia and 

 New Zealand. Flowers white, often small, in the axils 

 or in terminal crowded spikes, rarely solitary or dis- 

 posed in short axillary panicles ; calyx five-toothed or 

 five-fid. Leaves entire, sinuate, angled, or rarely lobed. 

 The species described below are half-hardy shrubs, ex- 

 cept where otherwise stated. For culture, see Malva- 

 viscus. 



P. bctulimis (Birch-like), ft. small, on slender, ebracteolate 

 pedicels ; panicles terminal, much-branched, very many-flowered, 

 stellate-tomentose. Summer. 1. of young plants iin. to iin. 

 long, rounded-ovate, variously crenate and lobed ; in full-grown 

 specimens, Iin. to 2in. long, ovate or ovate-lanceolate, acuminate, 

 rounded or cuueate at base, coarsely crenate-serrate or obtusely 

 doubly serrate, h. (in its native place) 40ft to 70ft. New Zea- 

 land, 1870. 



P. dlvarioatns (straggling), ft. in axillary fascicles or on one- 

 flowered peduncles, shorter than the leaves. June. I. Jin. to 

 jin. long, narrow-linear or sub-cuneate, obtuse, quite entire, one- 

 nerved. Branches slender, spreading, tough, h. 8ft. New Zea- 

 land, 1820. As this species is only found in salt marshes, where 

 very few shrubby plants thrive, its cultivation in such places 

 might prove beneficial. (B. M. 3271.) 



P. Lampenii (Rev. R. Lampen's).* ft. very pale yellow, almost 

 white ; petals five, roundish-oblong, much longer than the calyx ; 

 panicles short, leafy, axillary. November to February. I. shortly 

 petiolate, oblong-lanceolate, acute, 4in. to 5in. long, sharply and 

 regularly serrated, deep green above, hoary beneath. 

 h. 6ft. to 8ft Van Diemen's Land, 1833. (G. C. n. s., 

 xxii. 201.) 



P. Lyallii (Lyall's).* ft. Jin. broad, drooping, axillary ; 

 peduncles one-flowered, solitary or fascicled, ebracteo- 

 late, about as long as the petioles. July. I. 2in. to 

 4in. long, ovate-cordate, acuminate, deeply and doubly 

 crenated ; 

 Zealand, 



shrub. (B. M. 5935.) 



P. pulchellus (pretty). /. small, clustered along the 

 rachis of axillary racemes ; males pedicellate, females 

 sessile. Summer. I. on rather long petioles, from 

 deeply cordate-ovate to lanceolate, often acuminate, 

 2in. to 3in. (or rarely more) long, coarsely crenate. 

 Australia. Tall greenhouse shrub or small tree. 

 (B. M. 2753, under name of Sida pulchella.) 

 P. sidoides (Sida-like). ft. small, in short, axillary 

 racemes, the males with a campanulate, the females 

 with a tubular, calyx. Summer. I. from ovate-lanceo- 

 late to lanceolate, obtusely serrate, 2in. to 3in., or 

 rarely 4in., long, rounded at base, on petioles iin. to 

 iin. long, glabrous on the upper side when full 

 grown, with numerous impressed veins. h. 4ft. 

 Australia. Greenhouse. (B. M. 3396.) 



PLAGIOGYB.IA. Included under Lomaria. 

 FLAGIOLIRION (from plagios, oblique, 

 and leirion, a lily ; in allusion to the shape of 

 the perianth). OBD. Amaryllidece. A monotypic 

 genus, requiring treatment similar to Eucliaris 

 (which see). 



P. Horsmanni(Horsmann's).* ft. white, not scented, small, dis- 

 posed in a scapose, ten to twelve-flowered umbel ; perianth irre- 

 gular, one segment being directed downwards, and the other five 

 ascending. June and July. I. two or three to a stem, stalked, 

 elliptic, acute, bright green above, light green beneath. Bulb 

 long-necked. Columbia, 1883. (G. C. n. s., xx. 105, Fig. 16.) 

 PLAGIOLOBIUM. Included under Hovea. 

 FLAGIOFHYLLUM. A synonym of Centradenia 

 (which see). 



PLAITED. Folded lengthwise, like the plaits of a 

 closed fan. 

 PLANE. Flat; level. 



-, , 



d ; petioles iin. to liin. long. h. 20ft. New 

 , 1871. A handsome, greenhouse, sub-deciduous 



