Chlora 



( 204 ) 



Choisya 



CHLORA. (YELLOW WORT.) 



Neat annual or biennial plants (ord. Gentianesc), 

 with yellow flowers. They grow in common soil, 

 and are propagated by seeds sown in pots or pans 

 in a cold greenhouse in March. 



Principal Species : 

 imperfoliata, 1', Je., yel. perfoliata, 1', Je., yel. 



(*yn. sessiliflora) . (*'//" grandiflora). 



serotina, 1', Nov., yel. 



Other Species : 

 citrina. hybrida. longifolia. quadrifolia. 



CHLORANTHUS. 



These interesting plants (ord. Chloranthacese), 

 natives of East India and China, are of dwarf 

 habit, and require warm greenhouse protection. 

 Propagation is effected by cuttings inserted in 

 sandy peat in a close case, and a compost of peat 

 and loam suits them. 



Principal Species : 



inconspicuus, 1J', My., st. The fragrant flowers 

 are used for scenting tea under the title of Chu-lan. 



olficinalis, wh. Roots used in the East in cases 

 of typhus and intermittent fevers. 



CHLORIS. 



Pretty, summer-flowering, annual, awned Grasses 

 (ord. Gramineaj) for the border, or for pots under 

 glass. Sow seeds under glass in April or in the 

 open in May. Light, sandy soil, and a sunny 

 position. 



Species : 

 barbata, 1'. elegans, 1'. radiata, 6". 



CHLOROCODON. 



There is only one species of this genus (ord. 

 Asclepiadea;), and it is a Natal climber that must 

 be grown in the stove. It is not easy to increase 

 stock, except by importation of roots or by careful 

 root division. 



Only Species : 



Whitei, 10', aut, grh., pur. 



CHLOROGALUM. (SOAP PLANT.) 



Pretty bulbs allied to the Ornithogalums (ord. 

 Liliaceas), the only one grown being pomeridianum, 

 a. distinct plant, but barely hardy enough for our 

 climate without shelter in winter. Common soil ; 

 and propagated by offsets er by seeds sown in a 

 frame in spring. The bulbs are used as soap in 

 California. C. Leichtlinii is Camassia Leichtlinii 

 of some botanists. It has creamy flowers, and 

 grows about 2' high. 



Principal Species : 



pomeridianum, 2', Je., wh., pur. veins. 



CHLOROPHORA. 



An unimportant genus (ord. Urticacea:) of stove 

 evergreens, that grow in an open mixture of loam 

 and peat, and may be propagated from cuttings in 

 sand under a bell-glass in bottom heat. 



Only Species : 



tinctoria, 30', sum., grn. (mjn. Maclura tinctoria). 



CHLOROPHYLL. 



It is well known that green plants, if grown for 

 a while in the dark, will lose their colour, and 

 become white or whitish, as in the case of blanched 

 Celery, Seakale, etc. The reason for this is that 

 certain corpuscles or granules found in the leaf or 

 outer stem tissue of green plants, and known as 



Chloride of Lime (see Lime). 



chlorophyll granules, depend for their proper 

 working upon the action of light. Given a fair 

 amount of light, chlorophyll, the green colouring, 

 has the power of decomposing carbonic acid, it 

 will thus be seen that plants which are normally 

 green could not long exist in the dark, where the 

 functions of chlorophyll would cease. 



CHLOROPHYTUM. 



These plants (ord. Liliaeea:) thrive in the green- 

 house or stove, and are evergreen. They may be 

 increased by division or seeds, and grow well in 

 porous loam. One or two species are used in 

 summer bedding. 



Principal Species : 



datum, II-', Jy., wh. wh. variegation (/. 



(XI/HS. Aiithericum aud Anthericum variega- 



Phalangium elatum). turn). 



variegatuni, used for orchidustrum, 1!', Jy., 



sum. bedding, having wh. 



Other Species : 



aruudiuaceum,2',Jy.,wh. macropliyllum, II', sum., 



iiiornatum, II', Jy., gru. wh. 



wh. polyrhizou, 1', sum., wh. 

 lougifolium, 2', sum., wh. 



CHLOROSIS. 



Plants, like animals, sometimes suffer from 

 chlorosis, known also as the Green Sickness, a 

 disease that drains the system of all vitality and 

 leaves the sufferer helpless and pallid. Sometimes 

 it is impossible to restore a plant or tree attacked 

 by chlorosis, but if the disease has not gone too 

 far a good remedy is found in sulphate of iron, 

 given in the form of a weak solution (^ oz. per 

 gallon of water) applied to the roots. Plants that 

 grow rapidly and make soft, sappy growth are 

 often liable to chlorosis, and if these have been 

 much inbred to produce garden varieties the 

 liability is still greater. Peach trees not in- 

 frequently suffer from chlorosis if iron is lacking 

 in the soil, or a severe check has been given. The 

 mixture recommended may be supplied. 



CHLOROSPATHA. 



A tuberous rooted plant (ord. Aroidese) from 

 South America. It requires the temperature of 

 a stove, and flourishes in a porous compost of peat 

 and loam. The stock may be increased from seeds, 

 or by division of the tubers. During the time the 

 plant is in active growth apply a considerable 

 quantity of water, but the supply must be reduced 

 with the approach of the resting period. 



Only Species : 



Kolbii, sum., grn. 



CHLOROXYLON. 



A tall-growing tree (ord. Meliacea:), of con- 

 siderable economic value. It gives the Satin Wood 

 of commerce, so largely employed by cabinet 

 makers. The bark is astringent, and the tree is 

 one of those which furnish the wood oil of India. 

 It must be grown in the stove, and may be in- 

 creased from cuttings. Soil, peat and loam. 



Only Species : 



Swietenia, 50' to 75', My., wh. 



CHOISYA. 



A very beautiful evergreen shrub (ord. Kutacese), 

 hardy in many districts, but in colder localities 

 requiring a wall. It has pretty, glossy leaves, and 

 covers itself with bloom in favourable districts. 

 It is grown in loam, with the addition of some leaf 



