532 



THE GAKDENER'S ASSISTANT. 



Cavendishia. — Scandent shrubs with tubular, Erica- 

 like flowers. Sandy peat. There are but a few species, 

 of which the Mexican C. acuminata, with ovate leaves and 

 terminal racemes of bright-red flowers, is the best known. 



Fig. 645.— Cantua buxifolia (dependens). 



Celmisia. — Shrubby composites, natives of New 

 Zealand. The cultivated species, C. Munroi and C. 

 spectabilis, have a short stem bearing a rosette of leaves 

 which are dark-green, the under surface clothed with a 

 dense silky -white felt. Flowers Daisy -like, 2 inches 

 across, the ray florets white, the disc yellow. Sandy 

 peat. 



Celosia. — Of the many species C. cristata and its 

 forms are the only useful sorts for the greenhouse. Seeds 

 sown in March in heat soon germinate. The seedlings 

 should be placed early in small pots, and repotted again 

 and again until they are in 6-inch pots. C. cristata, the 

 "Cockscomb", grows about 9 inches high, but the variety 

 pyramidalis grows 2 to 3 feet, branches freely, and bears 

 terminal feathery plumes of white, yellow, or crimson 

 flowers. Loam, leaf-mould, manure. 



Celsia. — Biennials closely resembling Verbascum. The 

 two best species for indoors are C. Arcturus, a bushy 

 plant 3 feet high with large yellow flowers, and C. cretica, 

 which usually makes a single stem 4 to 5 feet high and 

 has yellow flowers an inch across. Loam. 



Cestrum {ffabrothamnus). — Scandent shrubs with 

 terminal heads of red or yellow flowers, of easy culture, 

 and useful for covering walls or pillars. After flowering 

 they should be spurred hard back. Loam. Cuttings. 



C. Cturantiacum. Glabrous leaves; golden flowers in terminal 

 panicles, produced in July, September, and December. Guate- 

 mala. 



C. elegans. Leaves hairy; flowers red, in large terminal cymes. 

 Winter and spring. Mexico. 



C. Xewcllii. Like C. elegans, bnt scarlet flowers. March to 

 May. 



Cheiranthus mutabilis, from the Canary Islands, is 

 of buslvy habit, and has light-purple flowers. Hybrids 



between it and C. Cheiri have been raised which promise 

 to become useful winter-flowering plants. They are 0. 

 hybridus, with yellow and purple flowers, and C. kewensis, 

 with fragrant flowers an inch across. 



Chironia. — South African Gentians, which bear pink 

 or purple flowers with great freedom. C. floribunda has 

 numerous thin stems a few inches high, small leaves, and 

 pink flowers ; C. linoides (ixifcra) is an upright bush a 

 foot high, with glaucous leaves and pink flowers; C. pedun- 

 cular is has larger leaves and flowers. Peat and loam. 



Chlorophytum. — Tufted Liliaceous plants. C. datum, 

 var. variegatum, is an ornamental plant with elegant 

 white and green leaves ; useful for decorations ; stands 

 well in rooms. Loam. S. Africa. 



Chorizema. — Pretty little Australian shrubs with 

 small Pea-shaped, red and yellow flowers. May be grown 

 as bushes or trained on low trellises. Sandy peat in a 

 cool, airy house. Spring. C. cordatum (fig. 646), C. ilici- 

 foliurn, and C. varium are the best. 



Chrysocoma Coma-aurea is a South African compo- 

 site of dwarf bushy habit, and bears small heads of yellow 

 flowers in summer. Loam. 



Cist us. — A few of the more tender species are worth 

 growing for the greenhouse. They are : C. crispus, with 

 reddish flowers ; C. oyprius, white ; 0. monspeliensis, 

 white ; and C. purpureus, purple. Loam. Cuttings. 



Citrus. — Greenhouse evergreens, including the Orange 

 and the Lemon. They require heat in spring when com- 

 mencing to grow, afterwards plenty of air and sunlight. 

 Flowers are produced at all times. 



Chorizema cordatum. 



C. Aurantium (Sweet Orange). Of this there are many forms, 

 that known as the Otabeite Orange being a small bush which fruits 

 freely when only a foot or so high. 



C. Decumana, the Shaddock or Pumelo. A large-leaved tree. 



C. medica, var. Limetta, the Sweet Lime. 



