244 



THE DICTIONARY OF GARDENING, 



Callitris continued. 



Fruit globular, composed of four to six rarely eight 

 unequal, woody, valvate scales, with one or two seeds at 

 the base of each. All the species are somewhat tender, 

 in England, except in the more southern districts. They 

 require a sandy loam compost. Propagated by cuttings, 

 inserted under a handlight in autumn, and protected by a 

 cold pit ; or by seeds. See also Widdringtonia. 



C. quadrivalvts (four-valved). Arar-tree ; Sandarach Gum-tree. 

 fl., female catkin tetragonal, with four oval valves, each fur- 

 nished with a point, and two of which bear seeds. February to 

 May. I. flattened, articulate. A. 15ft. to 20ft. Barbary, 1815. 



CALLIXENE. See Luzuriaga. 



Calltma continued. 



Serlii, and Hammondf), flesh-coloured (earned), and double- 

 flowered varieties (fl.-pl.) are all well worth growing in shrub- 

 beries ; aurea and argentea, with gold and silver coloured shoots, 

 are also very ornamental. The value of the common form can 

 scarcely be over-estimated for planting on barren hill sides or 

 spaces ; it affords excellent shelter for game, and food for bees. 



CALLUS. The new formation at the end of a cutting 

 before it puts forth roots ; when the Callus is formed, it 

 shows that the cutting is in a healthy state. 



CALOCHILUS (from kalos, beautiful, and cheilos, & 

 lip ; referring to the beauty of the labellum or lip). OED. 

 Orchidece. Interesting greenhouse terrestrial tuberous- 

 rooted Orchids, allied to Epipactis. Sepals yellowish-green ; 



FIG. 329. FLOWERS AND LEAVES OF CALOCHORTUS VENUSTUS. 



CALLOSE. Callous, hardened. 



CALLOUSLY-GLANDULAR. 



glands. 



Having hardened 



CALLOUSLY-SERRATED. Having hardened ser- 

 ratures. 



CALLUNA (from JuMuno, to sweep, from the use of the 



plant in brooms). Common Ling ; Heather. OKD. Ericaceae. 



A small hardy spreading shrub, very common throughout 



Northern and Central Europe. Corolla campanulate, four- 



lobed, shorter than the calyx. For culture, see Erica. 



C. vnlgarls (common).* fl. disposed in long, terminal snicate 



racemes. July to September. *t trigonal, obtusl^tryl^ort 



imbricating in four rows, having the margins revo ute and the 



base sagittate, h. 1ft. to 3ft. Britain. There are numerous very 



ornamental varieties of this species, which are admirably adapted 



for planting in borders and clumps. The white-flowered (alba 



For culture, 



lip purple, covered with rich brown hairs. 

 see Bletia. 



C. campestrls (field), fl. greenish and brown. April to June. 



I. narrow, ohlong, pointed. Stem leafy, slender, terete, h. 9in. 



Australia, 1824. (B. M. 3187.) 

 C. paludosus (marsh).* /. very similar in colour to those of 



C. campestris, but rather larcrer. May and June. I. rather 



broader, h. Bin. Australia, 1823. (F. A. O., part 4.) 



CALOCHORTUS (from kalos, beautiful, and chortos, 

 grass; referring to the leaves). Mariposa Lily. OBD. 

 Liliacece. Handsome bulbous plants. Flowers showy, 

 on erect scapes ; perianth deciduous ; three outer seg- 

 ments sepaloid, three inner ones much larger and broader, 

 and bearded on the inside. Leaves ensiform. Bulbs 

 tunicated. These have not, hitherto, been generally 

 grown in the open air with much success ; but in warm 



