714 



CENTRANTHUS 



CEPHALARIA 



rose. Spain. There are white-fid, (var. dlbus) and 

 dwarf (var. nanus) forms. Excellent for rockeries and 

 borders; also for lawn vases. L. jj_ g, 



CENTROPOGON (Greek kentron, spur, and pogon, 

 beard, referring to the fringed stigma) . Campanulacese. 

 Sub-shrubs or shrubs, often scandent, grown under 

 glass. 



Plants with alternate mostly dentate Ivs., and axil- 

 lary, long, tubular fls. which are violet, purple, red, or 

 orange, and usually borne singly on long peduncles: 

 corolla 2-lipped, the tube incurved: bracteoles very 

 small or wanting. More than 100 species in Trop. 

 Amer. Warmhouse perennials useful for hanging- 

 baskets, prop, by cuttings which it is better to put 

 under a bell-jar. 



Lucy anus, Houll. Height 1-2 ft.: st. somewhat 

 woody: Ivs. short-petioled, finely toothed: fls. rose, 

 hemispherical, with lanceolate segms. recurved at the 

 tips. R.H. 1868:290. Native country unknown. 

 Described from a cult, specimen and said to be a 

 hybrid of C. fastuosus and Siphocampylus betulseformis, 

 but seems to show little influence of the latter, which 

 has longer petioles and peduncles, more coarsely toothed 

 Ivs., longer calyx-segms., and a yellow-tipped corolla. 



fastuosus, Scheidw. Lvs. peach-like, oblong, acute, 

 bordered with glandular teeth, very glabrous, short- 

 petioled: fls. rose-colored, winter; calyx hemispherical, 

 with 5 lanceolate denticulate segms. Mex. R.H. 1853: 

 181. WILHELM MILLER. 



CENTROSEMA (Greek, spurred-standard). Legu- 

 minbsse. BUTTERFLY-PEA. Twining or trailing herbs, 

 one of which is sometimes cultivated. 



Leaves pinnate, 3-7-f oliolate : fls. in the axils, showy, 

 white or reddish, papilionaceous, the standard spurred 

 on the back, the keel broad, and the style bearded at 

 the apex: pod long and narrow, many-seeded, with 2 

 thick-edged valves. Species about 30 in Trop. Amer. 

 and 2 in U. S. Centrosema is a more recent name than 

 Bradburya of Rafinesque, but it is thoroughly estab- 

 lished in usage and is retained in the "nomina conser- 

 vanda" of the Vienna Congress. 



virginianum, Benth. (Bradburya virginidna, Kuntze). 

 Roughish, climbing, 2-^6 ft.: Ifts. ovate to linear, shi- 

 ning, stipitate: fls. 1-4 in the axil, 1 in. long, violet and 

 splashed, showy: pod straight and long-pointed, 4-5 

 in. long. N. J. and S., in sandy lands. A.G. 13:649. 

 Intro, to cult, many years ago, but again intro. in 1892 

 (as C. grandiftorum), and much advertised. It is a 

 hardy and desirable perennial vine, blooming the first 

 season from seed; easily grown. There is a white-fid, 

 form. L. H. B. 



CENTURY PLANT: Agave. 



CEPHAELIS (Greek-made compound, referring to the 

 fls. being borne in heads). Rubidcese. Tropical shrubs, 

 sub-shrubs or herbs, one of which yields ipecac; some 

 of them sometimes rarely seen in growing collections. 

 As the genus is commonly delimited, it comprises per- 

 haps 75 species of both the eastern and western hemis- 

 pheres. Engler & Prantl and others, howeyer, unite it 

 with the Linnsean Uragoga. Lvs. opposite, usually 

 ovate, oblong or obovate: fls. mostly small, white, col- 

 lected in an involucrate head; calyx 4-7-toothed and 

 persistent; corolla trumpet-shaped or salver-shaped, 

 the short limb 4-5-lobed; stamens 4 or 5, inserted in the 

 throat of the corolla: fr. a dry or fleshy 2-seeded drupe. 

 C. Ipecacudnha, Willd. (Psychotria Ipecacudnha, 

 Muell.-Arg. Uragoga Ipecacudnha, Baill.), from the root 

 of which the commercial ipecac is produced, is a low 

 creeping herb (4-8 in. high) with oblong-ovate entire 

 Ivs. which are pubescent beneath: heads becoming 

 pendulous: root slender, knotty; it is exported in large 

 quantities from Brazil. L. H. B. 



CEPHALANDRA: Coccinia. 



CEPHALANTHERA (Greek for head and anther). 

 Orchiddcese. About 10 species of small temperate- 

 region terrestrial orchids, allied to Epipactis and 

 Pogonia. Some of them are western N. American, and 

 others are European. Sepals 3; petals small, ovate; 

 lip saccate: Ivs. (sometimes wanting) lanceolate or 

 oblong: fls. mostly small (sometimes showy), in an open 

 spike. The species are scarcely known in cult., but 2 

 Japanese species have been offered by importers. These 

 are E. falcata Blume, yellow, and E. erecta, Blume, 

 white. 



CEPHALANTHUS (Greek, head and flower; flowers 

 in heads). Rubidcese. BUTTON-BUSH. Bush grown for 

 its attractive white flower-heads appearing in summer. 



Shrubs with opposite or whorled entire stipulate 

 Ivs.: fls. small, tubular, white or yellowish, 4-merous, 

 with included stamens and long exserted style, in 

 globular heads; ovary 2-celled: fr. dry, separating into 



2 nutlets. Five species in Amer. and Asia, of which only 

 the one N. American species is cult: hardy ornamental 

 shrub, with handsome glossy foliage and very attrac- 

 tive with its fl.- 

 balls appearing 

 late in summer. 

 It thrives in any 

 good garden soil, 

 best in a sandy, 

 somewhat moist 

 one; naturally it 

 grows in swamps 

 and on the bor- 

 ders of streams 

 and ponds, often 

 with the sts. 

 partly sub- 

 merged. Prop, 

 by seeds or by 

 cuttings of 

 ripened wood in 

 fall, and also by 

 greenwood cut- 

 tings taken from 

 forced plants 

 early in spring. 



occidentals, Linn. Fig. 874. Shrub, 3-12 ft., some- 

 times tree-like: Ivs. long-petioled, ovate or oval, acumi- 

 nate, glossy above, glabrous or slightly pubescent below, 

 3-6 in. long: heads about 1 in. diam., long-peduncled, 



3 or more at the end of the branches. July-Sept. From 

 New Brunswick south, west to Ont. and Calif. Em. 

 394. R.H. 1889, p. 280. S.S. 14:711. Var. angusti- 

 folia, Andr6. Lvs. oblong-lanceolate, usually in 3's. 

 R.H. 1889, p. 281. 



C. nataUnsis, Oliv. Branchlets hairy: Ivs. ovate, acuminate, 1 

 in. long: fls. green, in solitary heads: fr. edible. S. Afr. B.M. 



7400- ALFRED REHDER. 



CEPHALARIA (Greek for head, alluding to the capi- 

 tate flower-clusters). Dipsdcese. Coarse annual or per- 

 ennial herbs planted to some extent in herbaries. 



Much like Dipsacus, but the heads less spiny and 

 mostly smaller: heads terminal, ovoid or globular, 

 bearing many 4-parted yellowish, whitish or bluish 

 florets; stamens 4, perfect; style filiform: fr. a 4^8- 

 ribbed achene, the calyx-border often remaining on its 

 summit. About 30 species in the Medit. region, N. and 

 S. Afr. and W. Asia; also in Abyssinia. Lvs. entire, 

 dentate, or lobed. They are not much planted in Amer., 

 but they make striking subjects for summer bloom, 

 and the long sts. make ihem useful for cut-fls. The 

 bloom is something like that of scabiosa. Of simple 

 cult.; grown readily from seeds. 



alpina, Schrad. Perennial: tall and widely branched, 

 5 or 6 ft. : Ivs. pubescent and pinnatifid, the segms. cut 



874. Cephalanthus occidentalis. ( X H) 



