Platycodon 



( 213) 



Pleione 



filiformis, p. b. 1", sum., 

 st., canary yel., fra- 

 grant (*//. Dendro- 

 chiluin iilii'orine). 



glumacea, p. b. 1" to 2", 

 spr., intermediate, yel., 

 wh., new iiiinvii liay 

 scented ; best of all 



(//. Dendrochilum 

 glumaceum). 



valida, stronger grower 

 tlian type. 



uncata, smaller than fili- 

 formis, win., st., grn. , 

 very small (syii. Deuclro- 

 cliiium uucatum). 



PLATYCODON. 



A handsome, hardy perennial (ord. Campanu- 

 larfii 1 )- It is closely allied to the hardy Campanulas 

 proper, and as such may be treated. 



Only Species and its Varieties : 



grandiflorum, 6" to 12", Jy., hdy., bl., flowers 

 solitary or two or three at the tips of the branches. 

 There are both pale bl., wh., and single and semi- 

 double flowered vars. in existence ; autumnale and 

 chiuensc are vigorous vars., and Mariesii, with its 

 wh. form, is of dwarfer stature and has larger 

 flowers than the type. Chinese Bell-flower or 

 Balloon Flower. 



PLATYCRATER. 



Arguta is the only known species of this genus 

 (ord. Saxifragese). It is a hardy, dwarf shrub, bear- 

 ing greenish white flowers in summer. Propagation, 

 by cuttings in summer. Ordinary garden soil. 



PLATYLOBIUM. (FLAT PEA.) 



A genus of Australian shrubs (urd. Leguminosse) 

 not in general cultivation. Propagation, by seeds 

 sown in early spring-, or by cuttings of short, half- 

 ripe shoots inserted firmly in pots of sandy peat, in 

 a close frame in July. Soil, librous peat and silver 

 sand. Potting should always be done firmly, and 

 large shifts must be avoided. A cool, airy green- 

 house or light frame from winch frost is excluded 

 is necessary, and, if desired, plants may be stood 

 out of doors for the summer. 



Principal Species : 



fonnosum, \' , ,Ty., yel. obtupangulum, 1', My., 



gracile, 3' to 4', Je., yel. yel., red. 



triangulare, 1', My., yel. 



Other Species : 

 altemifolium, 3' to 4', Je., aphyllum, 3', My., yel. 



yel. 



PLATYLOPHUS. 



A genus of one species (ard. Saxifrages:). Tri- 

 foliatus is a graceful, evergreen, greenhouse tree, 

 with ternate leaves and large heads of white 

 flowers in June. Propagated by cuttings of half- 

 ripe shoots. Soil, fibrous loam and peat. Although 

 usually seen as a bush, it grows 40' high. 



PLATYSTEMON. 



A pretty, hardy annual (ord. Papaverace:c), 

 known sometimes as the California!! Poppy, which 

 grows in common soil if treated like the annual 

 Papavers, or Poppies. 



Only Species : 



californicus, 1', Jy., yel. 



PLATYSTIGMA. 



Half-hardy annual herbs (ord. Papaveracere), 

 with narrow leaves and yellow flowers. Seeds 

 should be sown out of doors in April in places 

 where the plants are intended to flower, thinning 

 the seedlings when necessary. 



Plati/loma (see 



Principal Species : 



califomicum, 1', sum., yel. oregauum, 1 , sura., yel. 

 lineare, 1', sum., yel. 



PLATYTHECA. 



Galioides is the only known species of this 

 Australian, Heath-like genus (ord. Tremandrese). 

 It grows 1' to 2' in height, and bears pale blue 

 flowers during late spring. Propagation, by cuttings 

 of half-ripe shoots in July, treated like those of 

 tender Ericas. Sandy peat and careful watering 

 are essentials to success. 



PLEASURE GROUND. 



Tile pleasure ground includes the flower 

 gardens, lawns, shrubberies, and other portions of 

 the grounds which are mainly of an ornamental 

 character. The size and style of the grounds 

 attached to a house ought to be proportionate to 

 the building and to the means of its owner. In a 

 large establishment they should be extensive and 

 varied in character, embracing flower gardens, 

 conservatories, tennis and other lawns, shrub- 

 beries, and wooded park, with wild garden, rock 

 garden, ponds or lakes, and fountains. A pleasing 

 diversity should characterise the whole, but there 

 ought to be no sudden or jarring transitions from 

 the formal to the natural parts. In the smaller 

 establishment, a proportionate extent of pleasure 

 ground is pleasing, and a simpler style of plan 

 and treatment ought to prevail. For the several 

 features of the pleasure ground, consult this work 

 under their respective titles. 



PLECTOCOMIA. 



Stove Palms (w<2. Palmse) of climbing habit, 

 allied to Calamus. They are distinguished by 

 long, elegant, pinnate leaves, each of which is 

 terminated by a long, whip-like appendage armed 

 with stout spines. Propagation, by imported 

 seeds. Soil, rich loam. 



Principal Species : 



assamica, SO'. Ivs. arching. Griffith!!, 60', flowers yel. 

 elongiita, 100' to 150', Ivs. spectabilis, 80', very orna- 



long, semi-pendent. mental. 



PLECTRANTHUS. 



Coleus-like herbs or sub-shrubs (ord. Labiatae) of 

 no horticultural value. Propagation, by cuttings. 

 (See COLEUS.) 



Principal Species : 

 fcetidus, 2' to 5', sum. hadiensis, 3', sum., lil., 



or win., pur. pur. 



fruticoaus, 3', sum., pur. purpuratus, 3', sum., pur. 

 tematus, 9", Aug., pur. 

 Opine Plant. 



PLECTRONIA. 



A large number of species (ord. Rubiaceae) are 

 known, but very few are in cultivation, and these 

 are of no horticultural value. 



PLEIONE. (INDIAN CROCUS.) 

 Botanists include Pleione under Crelogyne, of 

 which genus it forms a deciduous section. Pleiones 

 are of low growth, with curious, annual pseudo- 

 bulbs. The beautiful, short-stemmed flowers are 

 about 3" across, produced singly or in pairs from 

 the base of the old pseudo-bulb after the leaves 



1'latypeialwn (sec lirni/n ). 

 Platysma (see Piitli>e!ii/i/x). 

 Platystachys (we Till<nnhid). 

 Pleetrites (see Yalerianclla). 



