Horsfleldia 



( 42(j ) 



Houttuynia 



narrowing to 4" wide at the top. " Whips," or 

 small roots, should then be selected, cutting one 

 end squarely and the other slantingly, and forcing 

 these into each side of the ridge at an angle of 

 about 30 at intervals of 10". The base of the 

 fully grown root should not quite reach the 

 manure. This -will ensure splendid results, and it 

 is the work of only a few. minutes to get at the 

 crops. Fresh ridges should be formed each year, 

 the length being governed by individual require- 

 ments. 



HORSFIELDIA. 



A small genus (ord. Araliaceie) that is botanic- 

 ally interesting, because it in some degree connects. 

 the Umbellifers with the Araliads. Its members 

 lire evergreen stove shrubs, requiring similar treat- 

 ment to Aralias. The species are aculeata and. 

 peltata ; both are prickly. 



HOSACKIA. 



Dwarf annual or. perennial herbaceous plants 

 (pnl. Leguminosu:). Propagation', by seeds or divi-; 

 bion. They are very attractive in ordinary soil in 

 the rock garden. 



Principal Species : 

 bicolor, H', sum., per., crnssifolia, 3', sum., per., 



wh. gni., hr. 



graudiriora. 



HOTBEDS. 



These are prepared by collecting stable litter or 

 other fermenting material into heaps either indoors 

 or out, using the heat as an aid to the cultivation 

 of plants. When managed successfully, hotbeds 

 are among the most useful of the many aids to 

 successful cultivation ; the heat produced by them 

 is moist and genial, and many plants take more 

 kindly to it- than to fire heat. In some instances 

 brick pits are constructed to hold the manure ; in 

 other cases the manure is built up into a heap 4' 

 high, and a frame placed on the top. Stable litter 

 usually forms the principal part of hotbeds, though 

 leaves, half-spent tan, and grass are all made use 

 of. When the material is being prepared it should 

 be turned and well shaken about, and any dry 

 parts damped every alternate day for a week. It 

 should then be built in a tidy heap, using leaves 

 and tan with the manure. The leaves and tan do 

 not make such a fierce heat as the manure, but 

 hold longer. When the heap is built to the re- 

 quired height a frame should be placed on, leaving 

 A margin of manure 2' wide all round. About 

 three days after the hotbed has been made the 

 heat will be at its height, and until after that time 

 plants should not be put in. After the third day, 

 soil maybe put into the frame if -the plants are 

 to be planted, and Cocoanut fibre refuse if the 

 bed is to be used for standing pots on or for 

 plunging them in. When the heat begins to 

 decline, manure banked up round the outside will 

 be found to put fresh life into the heap, or short 

 manure may be forked into the bed. If a brisk 

 heat is wanted for a short time only, grass will 



Hone Chestnut (see Atsculns). 

 Horse Dun// (see Manures). 

 HOTSG Mitslirooin. (sue Mushrooms). 

 Horseradish Trim (see Moringia pteryyosperma). 

 Horseshoe Vetch (see Hippoarepis). 

 Horsetail (see Equisctum). 

 HoTtenxia (see Hydrangea). 

 Husta (ofJacquin, see Cornutia) 



be found useful ; it becomes very hot, but does 

 not retain the heat for any great length of time. 

 In the building of the bed it is important) that it 

 be made evenly and trodden firm, .otherwise it. 

 will become very uneven by sinking in at the loose 

 places. 

 HOTEIA (see ASTILBE). 



HOTTONIA. 



Hardy herbaceous water plants (ord. Primnla- 

 ces;), with perennial rootstocks. Propagation, by 

 division hi .spring. They may be grown in any 

 pond where the water is not more than 1J' or 2'' 

 deep. When planting, a heap of good loam should: 

 be placed in the water, and the plants placed in 

 the centre, or put in baskets, 



Principal Species : 



inflata, 8", Je., wh. palustris, 1' to 2', Jc., HI.,, 



yel. eye. 



HOULLETIA. 



A small genus of epiphytal Orchids (ord. Orchid- 

 aceo;), closely allied to Stanhopea, and requiring 

 to be grown in the warmest house.. Propagation,, 

 by careful division just as growth commences. 

 They are best grown in baskets in a mixture of 

 fibrous peat, charcoal, and sphagnum. When, 

 growing, plenty of heat and moisture should be 

 given, reducing the water supply and giving a. 

 lower temperature when growth is completed. 



Principal Species : 



hrocklehurstiana, 2',sum., odoratissima, 2', Rim.,, 

 intermediate house, br., intermediate, red, 

 lip yel., dark spots, fra- striped light br., fra- 

 grant, grant. 



chrysantha, 2', sum., yel., antioquensis, sesnients 



chocolate hlotchts, lip larger and broader, 



spotted crira. picta, 2', sum., rmuabar 



lowiana, 1', sum., yel.,wh. br., tessellated with 

 lighter br. 



HOUSTONIA. 



Pretty, dwarf-growing, herbaceous plants (orfl.. 

 Ilubiacesc), suitable for the rock garden, and front 

 of a herbaceous border ; or they may be grown in 

 shallow pans in a cold frame, and used for con- 

 servatory decoration. Propagation, by seeds as 

 soon as 'ripe, or by division in autumn or spring. 

 Soil, a fairly light loam. Plenty of water is re- 

 quired during summer. 



Principal Species: . 



ccrrulca, 3" to 4", sum.,, purpurea, 6", sum., pmv 



bl. serpyllifolia, 3" to 4 ,. 



alba, wh. sum., wh. 



HOUTTEA. 



A small genus of tropical shrubs (ord. Gesner- 

 acese). A hot, moist 'house is essential lor their 

 wellbeing. Propagation, by cuttings. 



Principal Species : 



Gardueri, 2', Jy., Aug., pardiua, '>', Aug. to Oct., 

 reel. wh. 



HOUTTUYNIA. 



Perennial herbaceous plants (ord. Piperacea:), 

 requiring cool greenhouse treatment. Propagation,, 

 by division or seeds. Any light, rich soil suits. 



Hottentot Bread (see Tcstudinaria Elepliantipes).. 

 Hottentot Cherry (see Cassine). 

 Hottentot Fi<i {see MescmTtryanthemum). 

 ] Ion nd's Tontine (see Cynoglossum"). 

 Houseleek (see Semperviw/ni). 



