ARABIS 



ARALIA 



87 



ARABIS (Arabia). Cnicifenv. ROCK-CRESS. Small 

 perennial or annual herbs, with white or purple U.S., 

 grown mostly in rockwork. Fls. mostly in terminal 

 spikes or racemes, small, but often many, or appearing 

 for a considerable period of time : siliques long, linear, 

 flat : stigma 2-lobed. In temperate regions, several na- 

 tive to this country. Usually prop, by division ; also 

 by seeds and cuttings. Hardy, requiring plenty of sun, 

 and thriving even in poor soil. The following four 

 species are perennials: 



A. Fls. purple or rose. 



muralis, Bertol. (A. rbsea, DC.). A foot high, with a 

 rather dense raceme of pretty fls.: Ivs. oblong, sessile 

 (the radical ones with a long, narrow base), prominently 

 and distantly blunt-toothed, sparsely pubescent. Spring 

 and summer. Italy. B.M. 324G. 



AA. -Fls. ivhite. 



serpyllifolia, Vill. (A.nivdlis, Guss.). Tufted, 2-6 in. : 

 radical Ivs. entire or few-toothed, the st. Ivs. small and 

 sessile, not clasping : fls. in a short cluster, the calyx as 

 long as the peduncle, the limb of the petals linear- 

 oblong and erect. Eu. 



alMda, Stev. (A. Caucdsica, Willd.). A few inches 

 high, pubescent : lower Ivs. narrow at the base, the up- 

 per auriculate-clasping, all angle-toothed near the top : 

 fls. in a loose raceme, the calyx shorter than the pedicel, 

 the petal-limb oval and obtuse. Eu. B.M. 2046. Also a 

 variegated var. (Gt. 45: 108). Blooms early, is fragrant, 

 and is well adapted for rockwork and edgings, and for 

 covering steep banks. 



alpina, Linn. Fls. smaller than in the last, plant only 

 slightly pubescent and hairy : Ivs. somewhat clasping but 

 not auriculate, small-toothed nearly or quite the entire 

 length, the cauline ones pointed. Eu. B.M. 226. Blooms 

 very early, and is one of the best rock plants. There is 

 a dwarf form (nana compacta, Gt. 44:203); also a va- 

 riegated variety. 



A. arenbsa, Scop. Fls. rose varying to white : Ivs. pinnatifid, 

 those on the st. deep-toothed. Eu. A. blepharophylla, Hook. 

 & Arn. Fls. large, rose-purple : Ivs. sharp-toothed, sessile or 

 clasping, the margins hairy. Calif. B.M. 6087. A. lucida, 

 Linn, f. Fls. white : Ivs. shining, obovate, clasping. There is a 

 variegated form. Eu. A. mollis, Stev. Fls. white : Ivs. pubes- 

 cent, large-toothed, the lower ones rounded and long-stalked, 

 Eu. A. petroea, Lam. Fls. white: Ivs. toothed, the radical 

 ones often parted, the st. Ivs. oblong-linear. Eu. A. prcecox, 

 Wald. & Kit.=A. prociirrens. A. procurrens, Wald. & Kit. 

 Fls. white : Ivs. ciliate, those on the st. entire and sessile, the 

 others stalked: stoloniferous. A variegated var. Eu. A. 

 verna, R. Br. Annual, hairy : fls. large, purple : Ivs. oblong- 

 ovate to round-oblong, the upper ones clasping, rather coarse- 

 toothed. Eu. B.M. 3331. T TT D 



Li. xl. t>. 



ARACE.E. See Aroidece, 



ARACHIS (Greek, without a rachis). Leguminbsce. 

 PEANUT. GOOBER. Sometimes grown in the economic 

 house of botanical gardens. The genus has seven spe- 

 cies, of which six are Brazilian. Fls. 5-7, yellow, in 

 a dense, axillary, sessile spike. As a hothouse annual, 

 the seeds of the Goober may be sown in heat, and the 

 plants potted in sandy loam. For outdoor culture, see 

 Peanut, by which name the plant is commonly known. 



hypogoea, Linn. One ft. or less high : Ivs. abruptly 

 pinnate, with two pairs of leaflets and no tendril. Mn. 

 7:105. Procumbent. 



ARALIA, including Dimorphdnthus (derivation ob- 

 scure). Araliacece. Perennial herbs or shrubs : Ivs. al- 

 ternate, deciduous, large, decompound : fls. small, 

 whitish, in umbels, usually forming large panicles ; 

 petals and stamens 5: berry, or rather drupe, 2-5-seeded, 

 black or dark purple, globular, small. Some of the 

 Aralias are hardy outdoor deciduous herbs and bushes; 

 others are fine stove plants, botanically unlike the true 

 Aralias as defined above. ALFRED REHDER. 



There are about 35 kinds of tender Aralias in cult. 

 Some of them are of robust growth, and make handsome 

 specimens for greenhouse and hothouse decoration when 

 j^rown to a height of 10 or 12 ft.; others of more deli- 

 jate and slender growth, such as A. Chabrieri (really 



an Elaeodendron), A. concinna (see Delarbrea), A. ele- 

 (jitHtixxiHiu and A. Veitchii, var. gracillima, are most 

 beautiful as smaller plants, say from 1-3 ft. in height. 

 These small plants are very beautiful as table pieces, 

 and are not surpassed in delicate grace and symmetry 

 by any plants; A. Veitchii, var. gracillima, is oneof the 

 very finest of the dwarf er- growing kinds. The more 

 robust sorts are usually prop, by cuttings, in the usual 

 manner, or by root cuttings, as Bouvardias are. The 

 more delicate varieties, as A. Chabrieri, elegantissima, 

 etc., do best when grafted on stronger-growing varie- 

 ties, like A. Guilfoylei, A.reticulata (which is an Oreo- 

 panax), etc. The slender-growing sorts require light, 

 rich soil, made of equal parts of sandy loam and peat or 

 leaf-mold. They require plenty of water and a moist 

 atmosphere. They are much subject to attacks of scale, 

 which may be removed or prevented by frequent care- 

 ful sponging with a weak solution of seal-oil soap, fir- 

 tree oil, or other like insecticide. 



Cult, by ROBERT CRAIG. 



The glasshouse species are much confused, largely 

 because some kinds receive trade and provisional 

 names before the fls. and frs. are known. See Acantho- 

 panax for A. Maximowiczii, pentaphylla, and ricinifo- 

 lia ; Delarbrea for A. concinna and A. spectabilis ; 

 Elceodendron for A. Chabrierii ; Fatsia for A. Ja- 

 ponica, papyrifera, and Sieboldii ; Oreopanax for A. 

 reticulata ; Polyscias for A. latifolia ; Sciadophyllum 

 for A. Amboinense. Other related genera are Hepta- 

 pleurum, Monopanax, Oreopanax, Panax, Pseudopanax. 



A. Tender evergreen Aralias, grown only under glass. 



(By some regarded as belonging to other genera.) 



B. Lvs. digitate. 



Kerchoveana, Hort. Lvs. the shape of a Ricinus, the 

 7-11 leaflets elliptic-lanceolate or oblong-lanceolate, with 

 undulate, and serrate margins and a pale midrib. S. 

 Sea Islands. Certificated in Eng. in 1881 (Gn. 19, p. 

 457). R.H. 1891, p. 225. Slender-stemmed, of beautiful 

 habit. 



Veitchii, Hort. Leaflets 9-11, very narrow or almost 

 filiform, undulate, shining green above and red beneath. 

 New Caledonia. One of the best and handsomest spe- 

 cies. Var. gracillima, Hort. (A.gracillna, Linden, R.H. 

 1867, p. 38). Leaflets 

 still narrower, with a 

 white rib. R.H. 1891, 

 p. 226. Gn. 39, p. 565. 

 Very desirable. Origi- 

 nally described as A . 

 gracilina (thin-lined), 

 which name has been 

 mistaken for gracil- 

 lima (very graceful). 

 elegantissima, Veitch. 

 Petioles mottled with 

 white: leaflets 7-11, fil- 

 iform and pendulous. 

 N e w Hebrides . Ex- 

 cellent. 



leptophylla, Hort 

 Slender plant : leaflets 128. Aralia Guilfoylei. 



filiform and drooping, 

 broadened at the extremities, deep green. Australasia. 



Reglna, Hort. Graceful : petioles olive, pink and 

 brown : Ifts. drooping, roundish. New Hebrides. 



BB. Lvs. pinnate. 



Guilfoylei, Cogn. & March. Fig.128. Leaflets 3-7 (digi- 

 tate-like), ovate or oblong, irregularly cut on the edges 

 or obscurely lobed, white-margined and sometimes gray- 

 splashed : st. spotted, erect. New Hebrides. Rapid 

 grower, showy, and good for pots. 



monstrosa, Hort. Leaflets 3-7, ovate-acute, deeply and 

 often oddly cut, broadly white-margined, also gray- 

 spotted : Ivs. drooping. S. Sea Isl. R.H. 1891, p. 225. 

 Gn. 39, p. 565. 



filicifdlia, Moore. Stem erect, purplish, white-spotted : 

 Ivs. fern-like (whence the name); leaflets 3-7 pairs, 

 lance-oblong and acuminate, long, deeply notch-toothed. 



