AN ENCYCLOPEDIA OF HORTICULTURE. 



293 



Centropogon cont inued. 



are the beet, being a nice handy size. Owing to its semi- 

 procumbent habit, it is not only good for pot culture, bnt 

 likewise forms a capital basket plant for suspending, in 

 which position it shows off ite beauties to great advantage. 

 When grown in this way, it is best to allow it to droop 

 naturally OTer the sides; but in pots it requires support, 

 which may be afforded it by using any small neat sticks, 

 touched over with pale green paint, so as to render them as 

 inconspicuous as possible. 



A. 2ft. 



CENTBOSTBKMA. ' fj i IIIMMMJ T1 in 



ne. 402. FLOWERS OF CE.XTROFOGOK FASTUOSCS. 



C.fa 



See Fig. 402. 



C. Lucyanua (M. Lucy's).* JL pretty rosy < 

 freely prodnced at the ends of short lateral spun. ^ 

 L obkog-tanceolate. Store spede*. This most desirable 

 hybrid was raised by M. Desponds, of Marseilles, in 1856. 



(Surinam). JL rose. Norember. A. 2ft. 

 Store species. (P. M. B. 13, 149.) 

 OIiENXA (from kentron, a sharp point, and 

 a tube; referring to the form of the corolla). OBD. 

 GtsneraceuB. This is now regarded as a mere section of 

 the genus Bpitcia. Stove herbaceous perennials. Corolla 

 tubular, spurred behind at base; throat widened; limb 

 short, fire-lobed, spreading ; calyx five-parted, serrated : 

 peduncles solitary, axillary, sometimes bearing many 

 pedicels. Leaves sub-cordate, petiolate. They thrive in 

 a soil composed of equal parts peat, leaf mould, and 

 sand. Good drainage is essential, and scarcely any water 

 is needed in winter. Cuttings will root in sand, in a warm 

 frame, with a bell glass covering. 



C. braeteaoOM (braeteate). JL aggregate, bracteate; corolla 

 wider upwards; limb white; tube tanged with 

 little shorter than the corolla, red-purple above 



UJSJTIf ATlTiTS (from iepfcafc, a head; in reference to 

 the arrangement of the flowers). OBD. BMOUI<F. Store 

 shrubs, rarely perennial herbs, mostly natives of tropical 

 America, a few African, and two or three from Asia and 

 Oceania. Heads of flowers terminal or axillary, sessile or 

 pedunculate, subtended by an involucre of from two to 

 eight bracts, which are disposed in a cruciately opposite 

 manner; corolla funnel- shaped. Leaves orate, acute, pe- 

 tiolate ; stipules free or combined. They thrive in a com- 

 post of sandy, fibry peat, leaf soil, and* lumpy loam, with 

 thorough drainage. Cuttings of firm young shoots will root 

 in sandy soil, under a hand glass, in moist stove heat 

 a Ipecacuanha (Ipecacuanha).* *. white, downy outside ; heads 

 terminal, pedunculate, erect at first, bnt at length becoming pen- 

 dulous. January. I. oblong-orate, scabrous above, and clothed 

 with fine down beneath. Stems ascending at first, but at length 

 becoming erect, rather downy at the apex. A. oin. Brazil, 1839. 

 Store herbaceous. The root of this plant has long been employed 

 for medicinal purposes. (B. M. 4065.) 



C. tomeatosa (downy).* .*- brownish ; heads on lone peduncles ; 

 bracts of inTolncre scarlet, larse. broad, ovate-cordate, June. 

 Branches, petioles, peduncles, leaves, and involucre, hairy. k. 

 4ft. Tropical America, 1882. Store shrub. (B. M. 6636.) 

 Many other species are well worth growing, bnt are either lost to 

 cultivation or await introduction. 



(from kephale, a head, and 

 anihera. an anther). OKD. Orchidex. Very interesting 

 and curious terrestrial Orchids. Calyx of three ovate, acute, 

 converging, permanent sepals ; petals ovate, erect, as long 

 the calyx; lip scarcely spurred, saccate at the base, con- 

 tracted in the middle, undivided and recurvate at the end. 

 They thrive well in a chalky loam, and may be propagated 

 by divisions. The following are our three native species : 



(sword-leared). A. pure white ; sepals and petals 

 narrower and more pointed than in C. vrandi/tcra. May and Jane. 

 L, lower ones broadly oblong: upper ones long and narrow lanceo- 

 late. Stems 1ft to aft, sub-solitary, slender. England. Closely 

 allied to a ffrandylora, bnt with narrower leaves. (Sy. En. B. 

 1184.) 



OT (large-flowered).* *. white, distant, sub-erect ; 

 sepals and petals craus-oblong, obtuse ; terminal lobe of lip 

 orbicular, erect, yellow. 



i. orate-oblong, Sin. u 

 ifted, 1ft. to 2ft. high. 



orate-oblong, obtuse; 



oin. ion,"- - 8110 '- ***-> 



England! 

 <X rnbra (redX JL rose-purple, few or many ; sepals and petals 



acuminate ; lip white ; terminal lobe ovate-lanceolate. June 



and July. L lanceolate. Stem oin. to ISin. high, slender. 



England." (Sy. En. B. 1483.) 



q?|c*TTAT.A m-i-M lift , from kcphale, a head, and anthot, 

 a flower; the flowers are disposed in globular heads). 

 Button-wood. OBD. Rvbiaceae. An ornamental hardy 

 deciduous shrub, growing in common garden soil, but 

 preferring moist sandy peat. The most suitable place 

 for it is the American garden. Propagated best by layers, 

 in the early autumn, 

 a occidental!* (Western).' <t whitish-yellow ; pedunciee much 



longer than the beads, usually by threes, at the top* of the 

 July. L opposite, or three in a whorl, orate or oral. 

 L A. 7ft. North America, 1735. <T. & M. 394.) 



(B. M. 4675.) 



CEPHAJLABIA (from kephale, a head; the flowers 

 being disposed in round heads). OBD. Diptacece. A genus 

 of hardy annual or perennial herbs, closely allied to Dip- 

 tacut. Flower-heads terminal, globose; involucre sur- 

 rounding the heads of many imbricated leaves, shorter than 

 the palese. Leave* toothed or pinnatifid. Most of the 



