ACANTHOMINTHA 



ACANTHUS 



11 



iljcifdlia, ("iray. Heip:ht 6 in.: Ivs. petioled, ovate, 

 bluntly tontlM'«l: tls. 3-8 in a whorl, chiefly purple, with 

 yelU.w anfl white marks. Calif. B.M. 6750. Int. 1891. 

 — Ijoss (li-sinilile than Laiuium, which see. 



ACANTHOPANAX (a thorny Panax-like plant). Ara- 

 li<'ici(f'. Hardy ornamental trees and shrubs: Ivs. alter- 

 nate, louf^^-petioled, lobed or diffitate, deciduous: fls. in- 



12 Acalypha hispida lA Sand 



conspicuous, in umbels ; petals and stamens 5 : fr. a 

 black 2-5-seeded berry. Cent. Asiaaud Himalayas. Prop, 

 by seeds or by root-cuttings; A. pentaphijllnm also by 

 hardwood cuttings. 



A. Lvs. simple, palmately lobed. 

 rlciniSdlium, ^t-*-m. {Ardlia Maximdwiczii.'iiort. Kalo- 

 p&nax ririnifdiitnn, Uiq.). Tree, 80 ft.: branches with 

 numerous stout prickles: Ivs. deeply 5-7-lobed, 9-14 in. 

 in diam., downy beneath when young; lobes oblong- 

 lanceolate, serrate : inflorescense terminal, large, com- 

 pound. Japan. F.S. 20: 2067.— A very ornamental tree 

 of striking subtropical effect. A new form from Japan 

 has the Ivs. less downy beneath and with short, broad 



lobes. r T --i i 



AA. Lvs. digitate. 



sessllifldruin, Seem. {Panax sessilifldrntn, Rupr. & 

 Max.). Shrub, 12 ft.: branches with only few prickles: 

 leaflets mostly ;i, obovate -lanceolate or oblong-lanceo- 

 late, cuneate, acuminate. 4—7 in. long, irregularly cre- 

 nate-serrate, nearly smooth: fls. dull purplish, sessile, in 

 globular heads on stout, downy peduncles. Manchuria, 

 N.China. (t.C. HI. 22: 339. Gt. 11: 3(i9.-The freely pro- 

 duced heads (if black berries are decorative. 



pentaphyllum, Marsh. (A. spindsum, Hort., not Miq. 

 Aroliii prntnphylla, Thunb.). Shrub, 5-10 ft. : branches 

 long and slender, with few compressed, straight prickles : 

 leaflets 5-7, oblong-obovate or oblong-lanceolate, cuneate, 

 acute, ?4-lJ^in. long, crenate-serrate, smooth: fls. green, 

 in long and slendor-podundcd umbels ; styles 5, connate. 

 Japan. — A graceful shrvil'. witli arcliing branches and 

 bright green, shinint,' foliar''. ex<'ellent on rocky banks 

 and slopes. Var. variegatum, Hort. Lvs. edged white. 

 F.S. 20:2079. 



A. ac^iledtum, Seem. Spiny shnib: leaflets 3-5, shortly peti- 

 oled, glabrous. Himalayas.— A. divaricdtum. Seem. Alhed to 



A. sessiliflorum. Lvs. hairy beneath: fls. pedicelled. Japan.— 

 A. iniwvans, Franch. et Sav. Unarmed small tree: lvs. fascicu- 

 late ; leaflets 3-5, nearly sessile, glabrous. Japan.— A. sdado- 

 phylloides, Franch. et Sav. Unarmed tree, 40 ft. : leaflets 5, 

 long petiolulate, glabrous. Japan.— A. sentichsum. Harms. = 

 Eleutherococcus senticosus.—A. spindsum, Miq. AJUed to A. 

 pentaphyllum. Lvs. often sparingly appressed- setose above : 

 peduncles shorter than petioles ; styles 2, separate. China. 

 Alfred Rehder. 

 ACANTHOPHIPPIUM. See AcantJu'phippium. 



ACANTHOPHCENIX (akuntha, thorn, and phcenix, a 

 date pahn). Pulwiiveiv, \ri\)Q ArecefB , Tall palms, spiny, 

 with the sttiut trunk ringed : lvs. terminal, equally pin- 

 natisect, more or less armed with long slender spines, the 

 narrow segments linear-lanceolate, acuminate, scaly be- 

 low, midrib and nerves prominent, the thickened margins 

 recurved at the base, rachis somewhat 3-sided, sheath 

 long, smooth or spiny: spadix twice branched, pendent, 

 with a short, thick peduncle, glabrous or tomentose, 

 smooth or spiny, the branches slender or thick and 

 twisted : spathes 2, compressed, deciduous : fls. red or 

 orange: fr. black, scarcely longer than a grain of wheat. 

 Species 3 or 4. Madagascar. 



They need a temperature of 70°-90°F. ; never less than 

 60^. The rooting medium should be somewhat light, with 

 a quantity of crushed charcoal. Drainage should be very 

 carefully arranged, as they demand an abundance of 

 moisture. Prop, only by seeds, which may remain two or 

 tliree years in the seed-pan before germinating. For gen- 

 eral cult., see Palms and Areca. 



crinlta, H.Wendl. {Areca crinlta, Bory). Trunk 50-60 

 ft. : lvs. 7-13 ft. long ; petiole densely tomentose, 4-8 in. 

 long ; leaf-sheath 23^-4Hft- long, thickly covered with 

 short brown bristles and spines; segments silvery white 

 beneath. Mauritius. F.S. 16:1706. F.R. 2; 201.- Young 

 plants have pale, yellowish green lvs. 



nibra, H.Wendl. (Areca r»&ra,Bory). Trunk 60 ft.: 

 lvs. 6-12 ft. long ; petiole glabrous, 2-4 in. long ; leaf- 

 sheath 2K-4Kft. long, thickly covered with long brown- 

 black spines ; pinnae slightly glaucous beneath : fr. glo- 

 bose, %-%m. in diam., with a prominent ridge extending 

 from the stigma to the base. Mauritius and Lsl. Bour- 

 Im)u. — Young plants have dark green lvs. with red veins, 

 Jared G. Smith and G.W. Oliver. 



ACANTHORHtZA i»l:>. 



'I't, thorn, and rhiza, root), 

 ■^idneless palm, with a rather 

 rohust c;,ii.ir\. (leiivrlyc|,.TlM-<l with the bases of the dead 

 sheaths; m.-ts s|.iiiesceiit at tiie l)ast' : lvs. terminal, the 

 orbicular I'laile de.]i|y cut into ;>- to niaiiyiiarted cunei- 

 form seguicTits, ^'laucous below, witliout auy rachis; 

 petiole flattened or convex above, smooth on the margins; 

 sheath short, fibrous : spadix compressed : the short 

 peduncle and spreading thickened branches white : bracts 

 and spathes elongated toward the base of the branches, 

 coriaceous, deciduous; bractlets bristly, deciduous. Spe- 

 cies 2 or 3. Cent. Amer. About one-fourth of the soil 

 given them should be vegetable mold. Prop, by seeds in 

 bottom heat. 



aculeita, H.Wendl. [Chamcerops stauracdnf ha jHort.) . 

 St. spiny at base : lvs. orbicular, with a narrow sinus 

 at the base, whitish beneath. Mes. I. H. 26:367. B.M. 

 7302.— Succeeds in an intennediate house. 



Chiico, Dnule {TItrinax Chuco, Mart.). St. smooth, 

 about 30 ft. high, 9-10 in. in diam. , slender, flexuous : Ivs. 

 orbicular, with a narrow sinus at the base; petioles slen- 

 der, 3-6 ft. long, smooth ; blade 6 ft. in diam. , divided to 

 or beyond the middle; segments 15-20, lanceolate, acute, 

 1-2 in. wide, dark green above, paler and glandular be- 

 low. Braz. 



The following species are rarely seen outside of botanic gar- 

 dens, and need stove temperature : A. Wdllisi, H. Wendl. 

 Hab. ?~-J.. Warscewiczii, H. Wendl. Panama. 



Jared G. Smith and G. W. Oliver. 



ACANTHUS ( (7 Arrtn/Ao.t, thorn). Acanthcice(F. Bear's 

 Breech. Mostly hardy herbaceous perennials of vigorous 

 growth and broad foliage, suitable for backgrounds of 

 borders and subtropical effects. The acanthus leaf is one 

 of the commonest of art forms. The ornamentation of 

 the Corinthian column is said to have been suggested 

 by A, spinosus. Height 3-4 ft. : spikes 1-lKft. long ; 



