1996 



XANTHOXYLUM 



very particular as to soil and position. Prop, by .seeds 



and by suckers or root-cuttings. 



The genus contains about 140 species in the tropical 



and subtropical regions of both hemispheres, and a few 

 in temperate regions. Trees 

 and sluMihs. with mostly 



5757. Leaf of Prickly Ash. l.raiM'in- 1 1 1 - Ti l!.i. 



Xanthoxylum Ameiica- :i! -t -i ■ .. :,ii 



num (X %). <<r ■■ii tu, , i . I.i i 



Showing the stipules and iilM,\., hi ■ 



stipels in the form ot spines. lH-iir:itli, \ ■ ., J m. h> 



sessile cymes, appearing shortly before the Ivs. 

 black Quebec to Neb. and Va. B.B. 2:353. 



piperitum, DC. Chinese or .Tapaxepe I 

 Bushy shrub, ranlv -Tnnll ti, ,■ l.rniM't;c - witli 

 prickles: Ifts. 11 r: ri-c, ■■ .ni'i.- i, -ii'i.t..^ 

 late, serrulate, t,H,.i 



paler beneath, -'.I i - ; :: i.,i 



dense, umbel-like cur) i[.li>. Jiil),Au-. Jujian, 



X. ailaiitholdes, Sieb. ,& Ziu-c. Tref. iUtainiuK 

 branches with numerous short prickles; Ivs. 1-4 ft. lo 

 oblong-ovate, glabrous, glaucous beneath, 3-6 in. long: 



XENIA. The immediate 

 iillueuce on the fruit that 

 ■iven pollination. 



XERANTHEMUM ( ( ireek, a 



lumortelles. They are iuha 

 egion. They are annual en 

 r tomentose. The heads i 



XERANTHEMUM 



Annuum, Linn. Fig. 2758. Annual, 2-3 ft. tall, erect, 

 white - tomentose : Ivs. alternate, oblong- lanceolate, 

 acute, entire: heads purple, 1-lK in. across, the longer 

 scales wide-spreading and ray-like. S. Europe. — Runs 

 into many varieties. Var. lignldsum, Voss (A', plenls- 

 simum and X. imperi&U, Hort. ). A double or half- 



ir^T^ 



2758. Xeranthem 



The ciiliiueoi: Xtiaiiihi-iiuiui i., \.i\ Miuple. Seeds 

 are usually .sown iu the upi-u, whLre the plants are to 

 stand ; but they may be started indoors and the seed- 

 lings transplanted. Hardy or half-hardy annuals. 



double form. Var. perliffuldaum, Voss (A', superbissi- 

 mnm, Hort.), has very full double heads. In these and 

 the single types there are white-fld. (var. alMim), rose- 

 fld. (var. roseiiHi) and purple-fld. {yiit. purpureum) va- 

 rieties. There are also violet-fld. forms. Var. multiil6- 

 rum, Hort. (var. compactum) has a more compact and 



