Greenhouse and Stove Plants 



223 



produced freely from every bit of growtli 

 the plant makes. One of the best hard- 

 wooded flowering stove plants introduced 

 in recent years. Northern Borneo. 



J. ligustrifolium. An evergreen shrub 

 with white flowers, produced for a long 

 period in succession. From India. 



/. Sambac fl.-pl This is an evergreen 

 climbing species that bears white, highly 

 fragrant double flowers most useful for 

 bouquets. It is not a strong grower, and 

 must not be over-potted. A native of the 

 East Indies. 



Insects. — These heat-requiring Ja.s- 

 mines are subject to most of the insects 

 that affect plants requiring artificial 

 warmth, including aphides, thrips, and red 

 spider, which must be kept down by daily 

 syringing overhead and fumigating. If 

 mealy bug or scale attack them, syringe 

 well with or dip in insecticide, until they 

 are free from the pests. 



JASMINUM. 



(Greenhouse.) 



The greenhouse kinds of this genus are 

 evergreen, proverbial for the pretty flowers 

 they bear. 



The propagation and cultivation of the 

 kinds under notice is similar to that advised 

 for the stove species, which see, except that 

 an ordinary greenhouse temperature is 

 sufficient after the plants get established. 



The undernamed are the most suitable 

 for use as greenhouse climbers : — 



/. azorkum. Has white flowers, produced 

 in summer. From Madeira. 



/. grandijlorum. A white-flowered 

 summer bloomer. From India. 



/. lister ophy Hum. A white-flowered 

 species that blooms in summer. From 

 Nepal. 



/. odoratissimura. Flowers white, blooms 

 in summer. A native of Madeira. 



JONESIA. 



Of the known species of this genus J. 

 Asoca is much the most important ; it is 

 an evergreen stove tree requiring a high 

 temperature to grow well. It has large 

 leaves, compared with which the flowers 

 are small ; they are produced in corymbs, 

 and are individually about the size and 

 shai>e of those of the common Hawthorn, to 

 \\liich the ti'usses are similar in size ; the 

 colour is dark orange. It is suitable only 

 for a large house. 



It will succeed under treatment similar 

 to that advised for Amherstia (which see), 

 except that it will do with somewhat less 



heat. Its flowers are fragiant. Introduced 

 from India. 



JUB^A SPECTABILIS. 



(Syn. : Oocos chilensis.) 



This Palm is well worth growing, as it is 

 one of the not too plentiful kinds that will 

 thrive in a greenhouse. It is a handsome 

 species attaining a large size as it gets old, 

 and is pretty in a young state. From 

 Chili. 



Propagation and cultivation given under 

 Palms, general details of culture. 



JUSTICIA. 



This genus contains a large number 

 of species of easily-managed quick-growing 

 plants, that soon arrive at a flowering state. 

 Most of them are evergreen stove shrubs ; 

 — the most desirable kinds are remarkable 

 for their free disposition of flowering. 



They strike readily from shoot-cuttings 

 in spring, kept moist, close, and shaded in 

 a modei'ately brisk heat ; when rooted 

 move them singly to 3-inch pots, giving 

 them good turfy loam with some leaf- 

 mould, rotten-manure, and sand, in which 

 mixture they thrive freely ; keep them 

 rather close until they have begun to grow 

 away, when pinch out the tops and give 

 more air, still keeping them in a stove 

 temperature with a tolerably moist atmo- 

 sphere, and shade when the weather is 

 bright. In two months after they were 

 potted they will require moving to 6 or 8 

 inch pots, according to the more or less 

 natural strength of the kinds grown ; use 

 the same sort of soil, but let it be now in a 

 more lumpy condition. Again pinch out 

 the points, syringe daily, and give liberal 

 waterings as the soil gets full of roots ; 

 stand them with their heads well up to the 

 glass, and give air and shade ; as the 

 summer draws to a close, dispense with the 

 latter altogether as soon as the plants will 

 bear it, give more air and put a few sticks 

 for support. The most useful kinds are 

 those that bloom in autumn. After flower- 

 ing those that are to be kept for another 

 year should have their slioots shortened 

 and be kept in a temperature through the 

 winter of about 60° by night. In spring 

 shake a portion of the old soil away and 

 give pots 3 or 4 inches larger, striking 

 cuttings of these kinds that it is preferred 

 to bloom in a smaller state, and treating 

 the old plants as advised in the summer 

 previous. When the pots are full of roots 

 manure-water is a great assistance, either 

 with small or large examples. 



/. f.nrnea. A strong-growing free- 



