Ixiolirion 



(452 ) 



Jacksonia 



for potting is October, and the same treatment as 

 that accorded'to Freesias and other Cape bulbs I 

 will suit. 



Principal Species : 



[NOTE. Many species that were at one time 

 placed under Ixia have now been transferred to 

 Sparaxis, Tritonia, Micrantha, Romulea, and Hes- 

 peranthera, which see. Those here named are 

 regarded by the Kew authorities as true Ixias.] 

 crateroides (sfcspeciosa). Gladiolus longifiorus, 



flexuosa, If, Ap., pk. audTritom'alongiflora). 



fusco-citrina (see macu- patens, 1', Ap., pur. 



lata). polystachya (of LinniEus, 



maculata, 1', My., br., not Jacquin), H',sum., 



wh. (HI/H.I. fusco-citrina wh., br. (syn. erecta). 



and spicata). speciosa, 1', Jy., pur., 



monadelpha, 9", My., bl. crim. (syn. crateroides). 



paniculata, 1', sum., yel., spicata (see maculata;. 



wh. (si/us, longiflora, viridiflora, H', My.,gru. 



IXIOLIRION. 



Syrian bulbous-rooted plants (ord. Amaryllidefe) 

 which, though introduced in 1814, have not become 

 very common. They are perfectly hardy, and pro- 

 duce such charming flowers that they are worthy 

 of inclusion in every garden. Propagation, by 

 offsets from the bulbs, or by seeds when procurable. 

 In neither case is special soil necessary. Ixiolirions 

 flourish in any fertile mould, but, like many 

 bulbous. plants, delight in sound loam, leaf mould, 

 and sand. 



Principal Species : 



montanum, l',.Je., bl. (si/ns. Amaryllis and Al- 

 stromeria montana) ; macranthum is a good var. 



Other Species : 

 kolpakowskianum, 1', Pallasii, 1', sum., bl. 



sum., bl. or wh. 



IXODIA. 



Greenhouse evergreen shrubs (ord. Composite). 

 Propagation, by cuttings of firm young shoots in 

 late spring beneath a bell-glass. A mixture of 

 fibrous loam and peat suits. 



Principal Species : 



achilleoides, 2', sum., wh. 



IXORA. 



Description. Valuable stove plants (ord. Rubia- 

 cese) which, when well grown, are difficult to 

 surpass for beauty of flower and foliage. To those 

 who grow specimen plants for exhibition they 

 are indispensable. 



Propagation. By cuttings of short - jointed 

 shoots, moderately firm, in sandy peat over bottom 

 heat. If the cuttings can be inserted singly, and 

 the pots are plunged in a gentle hotbed, rooting 

 is more certain and slightly quicker. When well 

 rooted pinch out the tops, and a few days later 

 place in larger pots. 



Soil. Two parts good fibrous loam, one part leaf 

 mould, and one part fibrous peat, with a generous 

 addition of silver sand. 



Other Cultural Points. As the roots are very 

 susceptible to damage from soil sourness, the 

 drainage must be perfect. After the first potting, 

 the plants are best on an ash or shell covered 

 stage, water being given freely as the soil becomes 

 permeated with roots. Syringing will be fouivl 

 beneficial, and shade from bright sunshine is 

 advisable. Young plants in 6" pots will flower, 

 and may be afterwards encouraged to take a few 

 weeks' rest prior to being judiciously pruned early 



in the year. Macrothyrsa, however, must not be 

 pinched. A temperature of 75 is suitable for 

 starting. As soon as growth has commenced, 

 any renovation of the roots or repotting should 

 be attended to. Until the plants have done 

 flowering they must be. accorded a high temperature 

 and a moist atmosphere. When the pots are full 

 of roots and the flower buds are developing, liquid 

 manure may be applied frequently. Careful 

 pruning and pinching will be found to obviate 

 the necessity for an elaborate course of training. 



Enemies. Ixoras are liable to the attacks of 

 thrips and mealy bug. Vaporisation has been 

 found to answer well, but sponging the leaves 

 must be had recourse to in severe cases, as the 

 beauty of the plants is very quickly lost. Frequent 

 and forcible syringings are good preventives, and 

 care should be exercised that neither pest obtains 

 a firm hold. 



Principal Species, Hybrids, and Varieties : 



coccinea, 4', sum., or., javanica, 3', J., or. 



sc. Ihere are several niacrothyrsa, 6', sum., 



splendid garden forms, ver., sc. (xi/ii. Duffii, 



seedlings from this w /j. 4;;3). 



species, and varyiug Pilgrimi, 4', Jy., or., sc., 



slightly in habit and crim., hybrid (coccinea 



colour, notably dix- X Williamsii). 



iana, Fraseri, grandi- Prince of Orange, 3', Jy. ( 



flora, luteus, Morsei, bright or. 



and superba. Westii, 3', Aug., rosy pk., 



Duffii (sec macrothyrsa). blush, hybrid. 



Griffithii, 4', Jy., red, yel. Williamsii, 4', Jy., salmon 



incarnata, 3', Je., pur. , red, very fine, 

 probably a form of 

 cocciuea. 



Other Species and Varieties : 



alba (see stricta var.). graudiflora (sec cocciuea 



barbata, 10', Jy., wh. var.). 



crocata (see stricta var.). jucunda, 10', My., wh. 



dixiana(s?coccineavar.). laxiflora, 4', Je., wh., pk. 



Fraseri(se(?cocciiieavar.). Morsei (sec cocciuea var.). 



fulgens, 5', Aug., or. ; sali- salicifolia (,w fulgeus 

 cifolia and the varie- var.). 



gated fprm are varie- stricla, 3', Jy.. sc. ; alba 

 ties of this. and crocata are forms. 



JABOROSA. 



Herbaceous perennials (ord. Solanacere). Prop- 

 agation, by division of the root-stock in spring ; or 

 by cuttings under hand-lights. Soil, well-drained 

 sandy loam. 



Principal Species : 



integrifolia, 1', Jy., Sep., wh. 



JACARANDA. 



Stove evergreen trees (ord. Bignoniacete). Prop- 

 agation, by cuttings of half-ripened wood in very 

 sandy soil beneath a bell-glass over .bottom heat. 

 Soil, equal parts of fibrous peat and loam, with 

 coarse sand. The drainage must be perfect. 



Principal Species : 



ccerulea, 10', sum., bl. 

 h'licifolia, 20', sum., bl. 



ovalifolia, 12', My., bl. 

 (syn. mimososfolia). 



JACKSONIA. 



Greenhouse evergreen shrubs (ord. Leguminosnc). 

 Propagation, by cuttings in spring in sandy soil 

 beneath a bell-glass. Soil, equal parts of peat and 

 loam, with coarse sand. 



Jaca (see Artnearjtvsi). 

 Jacinth (see Hyacinth). 



