CKROXYLON 

 CER6XYL0N NIVEUM, Hort.= DipIotheraium. 



CfiSTEUM (old Greek name). Syn., Habrolhdmnus. 

 Solandeece. Greenhouse shrubs of many species, in trop- 

 ical Amer. Some of them have a climbing habit. The 

 tubular fls. are in axillary or terminal cymes, red, yellow, 

 greenish or white, often very fragrant. Lvs. alternate 

 and entire, usually rather narrow. Fruit a berry. Oes- 

 trums are among the most useful of bright-flowering, 

 shrubby, greenhouse plants, and they may be grown 

 either as pot plants, or planted out against the back wall 

 or supports of a greenhouse, where, if given a light po- 

 sition, they will produce an abundance of flowers from 

 January to April. The Mexican species will do well In 

 a winter temperature of 45° to 50°, but the species from 

 Central America require stove temperature. They are 

 propagated bv cuttings taken in February or early in 

 March, and inserted in sand in a warm temperature, 

 keeping them somewhat close until rooted, when they 

 should be potted in a light soil, after which they may be 

 grown in pots, shifting on as often as required, or planted 



CHAM^BATIA 



285 



416. Cestrum elegans (X ii 



out m the opt n gioum 

 position wli. 1' it 1m 

 growth and iTtt nti' ti 

 fineplant^- I \ tli, tu- 

 be hfted 111 1 p tti 1 

 and shadi d t i i U w 



in die 



h 1 111 1 li„lit, ink -oil and k. pt ilose 

 t. ^^ .1 IN - Hid then transfeued to their 

 \tti 1 ll(.wering, the plants should he 

 given a rt -^t 1 i i in iiili ni six weeks, gradually reducing 

 the supph t w iti 1 t ■ induce the leaves and wood to 

 ripen, attn whn h the\ should be cut well back, the old 

 soil shaken oil and the routs trimmed back, and then 

 either pottid again or planted out for the summer While 

 in the gieenhouse, Oestrums aie very subject to the 

 attacks of insects, especialU the meah bug ( Coccus 

 adoiiidum ) To keep these m check thej should be given 

 an occasional spraA ing of kerosene emulsion. The Oes- 

 trums are much grown m warm countries, and they 

 bloom continuously. Following are the only species 

 known to be in theAmer. trade : 



A. FU. red. 

 61egans, s,-lil,-i'ht. tnal,ron,,!min,s rhinnis. BiMiiiin.). 



Fig.41G. Tall and sl.Mia.T.l.alf-Hinil.inuMh.- l.raii.-hes 

 pubescent: hs. ..vatc hiii.'.-.,|ati\ lni,:.-.arunnnati', of 

 medium size, inilirsc.nt bi-math; tls. rrd-purplr. swollen 

 near the top of the tube, iu louse clusters, which nud at 

 the ends of the branches, the lobes ciliate. Mex. F.S. 

 2:82. — One of the commonest and best of greenhouse 

 shrubs, blooming almost continuously. There is a form 

 ■with variegated lvs. 



fasciculitum, Miers. Spring bloomer, with larger fls. 

 than those of (.'. eleganx, and more compact, nearly 

 globular fl. -clusters, the cluster subtended by small lvs. 

 as if an involucre : lvs. ovate. Mex. B.ai. 4183 (and 

 probably the C. elegans, B.M. 5659.) 



NfiwelU, Hort. (B. Nhoelfi, Veitch). Fls. bright 

 crimson, larger and more brilliant than those of C. ele- 

 gans and C. fasciculatum. Gn. 34: 660. — A free-growing 

 plant, originating from seed by Mr. Newell, Downham 

 Market, Eng. Evidently an offshoot of one of the pre- 

 ceding species. 



AA. Fls. Orange. 



aurantlacum, Lindl. Of half-clirabing habit : lvs. 

 oval to ovate, more or less undulate : fls. sessile, in a 

 panicle, orange-yellow. Guatemala. R.H. 1858, p. 238. 

 AAA. Fls. white, greenish, orcream-yelloiv. 



Pirqui, L'Her. Shrub, half-hardy : lvs. lanceolate, 

 petioled, short, acuminate: fls. long, tubular, with a wide- 

 spreading limb, in an open panicle, greenish yellow, very 

 fragrant at night. Chile. B. M. 1770. 



diiimum, Linn, i nn.i _i,,u ing evergreen shrub: lvs. 

 oblong and -hi ^i-h and glabrous, shining 



above: fls. whn -rrnted by day, in axillary 



long peduncli-il -[.il..-: ir. ,\liiti-. W. Ind. 



noctumum, Linn, .Shrub (>-I> ft.: branches brownish, 

 very slender or flexuose, glabrous or nearly so : lvs. 

 thinner, ovate or elliptic, prominently acuminate : fls. 

 creamy yellow, very fragrant by night. Jamaica. 



E. J. Canning and L. H. B. 



CH^NACTIS (Greek, gaping ray: the marginal 

 corollas often ray-like). Compdsitm. West American 

 herbs or under-shrubs, with alternate and mostly dis- 

 sected lvs., and yellow, white or flesh-colored fls. on 

 solitary peduncles or in loose cymes. Florets of one 

 kind, but the marginal ones with a more or less en- 

 larged limb: involucre campanulate: receptacle flat and 

 generally naked : painnis uf scales (wanting in 1 spe- 

 cies). Three .sj ins liavn l),.en introduced as border 



plants, but they ar.' Iittir knuwn to gardeners. Of easy 



culture. Prop, liy snnds ur division. 



A. Pappus of entire or ii.-irh/ .iilln: persistent scales. 



tenuifdlia, Nutt. Small, tuftnd annual, white pubes- 

 cent when young but bi-cuiiiim; marly ur<iuite glabrous: 

 1 ft. : lvs. once or twice piiiuatulv parted, the lobes linear 

 or filiform: heads Jain. high, le'mou-yellow. S. Calif. 



Dotiglasii, Hook. & Am. Biennial or perennial, 3-15 

 in. high, usually white-woolly when young: lvs. broad, 

 pinnately parted into short and crowded, obtuse lobes: 

 heads K-Min, high, white or whitish. Mont. S. and W. 

 -Variable. 

 AA. Pappus of fimbriate and deciduous scales, or even 



artemisiaefdlia, Gray. Tufted annual, 1-2 ft., rusty- 

 pubescent and somewhat sticky : lvs. 2 or 3, pinnately 

 parted into short-linear or oblong lobes : heads % in. 

 high, the involucre viscid, the florets white or cream- 

 color. S. Calif. L. H. B. 



CHJENOMfiLES. Cydonia. 



CH.SNOSTOMA (gaping mouth, in allusion to the 

 shape of the corolla). Scrophulari^cete. About 30 

 African herbs or sub-shrubs, with simple lvs. mostly 

 opposite, and axillary or terminal-racemose, showy fls. ; 

 stamens 4, iu 2's, attached to the throat of the corolla, 

 more or less exserted: style filiform and club-shaped, 

 and obtuse at the apex : corolla tubular, swollen in the 

 throat, with a 5-lobed spreading limb. 



hispidum, Benth. Small perennial, with opposite, oval 

 or oblong-toothed lvs., and blush-white, star-like fls. 

 % in. across, in dense clusters. S. Afr. J.H. III. 33:636. 

 —An old and deserving greenhouse or pot plant, but 

 rarely seen at present. It blooms almost continuously, 

 the fls. sometimes hiding the foliage. Prop, by seeds or 

 cuttings, either in fall or spring. Begins to bloom when 

 4-6 in. high. To be recommended for windows, and for 

 summer vases. 



CHAMSBATIA (Greek, dwarf, and bramble, allud- 

 ing to its bramble-like fls.). MosAcew. Low shrub, 

 clothed with glandular pubescence: lvs. alternate, stipu- 

 late, tripinnatifld, persistent : fls. in terminal corymbs, 

 white, with 5 petals and numerous stamens: fr. a small 

 akene. One species in Calif. Ornamental shrub of 

 agreeable aromatic odor, with graceful foliage and 

 showy white fls. in June and July; hardy only in warmer 

 temperate regions. It thrives best in sandy, well- 

 drained soil and sunny position. Prop, by seeds sown 

 in spring and by greenwood cuttings under glass. 



