/ 



160 CRTICACE^. 



one aide. — Leaves ^-nerved: stipules axillary ; flower-clusters ia ititermpted sjikes or axiU 

 lary, exinvolvicrate. 



/ 64. B. caudata, Sw. Leaves opposiie, large, ovate (or lanceolate), pointleted or 

 pointed, crenate-serrate, scabrous above, pubescent beneath : stipules distinct ; spikes axil- 

 lary, simple, elongated, iiexuose, nodding, as long as or exceeding the leaves, diiecious ; 



i,, ? calyx at length compressed, marginate. — Mart. Fl. iras. 12. t. 64, 66. — ^A shrub, 

 3'-15' high; leaves 10"-6" long, long-petioled. — Hab. Jamaica!, all coll., in mountain- 

 valleys ; [Mexico I to New Granada I and Brazil !]l 



65. B. cylindrica, W. Leaves opposite (rarely alternate), ovate or oblong-lanceolate, 

 acuminate, crenate-serrate, glabrescent : stipules distinct ; spikes axillary, simple (rarely 

 branched), often leafy at the top, spreading-erect, exceeded by the leaves, usually andro- 

 gynous: the clusters unisexual ; $ calyx compressed, thickly margined. — SI. t. 82. f. 2; 

 Wedd. Monogr. Vrt. t. 11./. 18. — -Urtioa, L. U. reticulata, Sw.!: a broad-leaved form 

 with branched spikes. B. litoralis, Sw. I : a narrow-leaved form. — Stem 2'-3' high, suffru- 

 tescent or herbaceous ; leaves 3"-6" long. — Has. Jamaica !, MNab, Al., March ; Trinidad !, 

 Or.; [Canada! to Texas ! ; Cuba!, New Granada!, Brazil!, Uruguay !]. 



66. B. ramiflora, Jacq. Leaves alternate, obliquely ovate-oblong or lanceolate, acu- 

 minate, often pointleted, serrate, hairy or nearly glabrescent, alternately of unequal growth; 

 the tvio lateral nerves of unequal length : stipules elongated, distinct ; flower-clusters la- 

 teral or axillary, unisexual, monoecious, forming interrupted spikes below the leafy top of the 

 branchlets; ^ calyx 3-androu3, ? at length biconvex. — Jacq.Amer.Pict.t.a&. — Ashrnh, 

 6'-8' high ; larger leaves 3"-12", smaller l"-5" long, the latter shorter petioled. — Has. Ja- 

 maica !, all ooU. ; Dominica !, Imr. ; S. Vincent !, Guild. ; Trinidad !, &. 



15. PHENAX, JTedd. ^' ^^ )J,'~}('f 



Calyx i 3-5-lobed, ? none. Stigma filiform, at length deciduous. — Leaves alternate, 

 S{—&)-nerved: stipules lateral; Sovret-clasters axillary, surrounded by bracts. 



67. Ph. urticifolius, Wedd. I Pubescent ; leaves ovate, pointed, dentate-serrate, 

 usually rugose, punctate on the upper side ; flower-clusters androgynous, globose, exceeded 

 by the subulate stipules ; bracts ovate ; <J calyx 4-lobed, 4-androus, campanulate, devoid 

 of a transverse plica. — Wedd. Monogr. Vrt. t. 16 A. — Bcehmeria, Pers. B. hirta, Sw. 

 Ph. Isevigatus, Wedd. Ph. haitiensis, Wedd. — A shrub or suffrutescent herb, 2-8' high; 

 leaves 4"-2" long ; flower-clusters 4'" diam. — Has. Jamaica !, Td., Wils., in mountain- 

 woods at 4000' alt. ; [Mexico !, Venezuela !, New Granada ! to Bolivia]. 



68. Ph. vulgaris, Wedd. Hispidulons with scattered hairs, or glabrescent ; leaves 

 ovate-lanceolate or ovate, acuminate, serrate with the base entire, membranaceous, suhci- 

 liate : flower-clusters androgynous, small, equalling the subulate stipules : exterior bracts 

 numerous, oval or roundish, ciliate, ? ones sheathing ; g calyx 5-4-lobed, 5-4-androus: 

 lobes inflexed vnth a transverse plica; achenium ovate, pi>inted, mnricate. — Parietaria 

 Sonneratii, Poir. Gesnouinia hcehmerioides, Miq. — Stem 3'--4' high, herbaceous or suifru- 

 tescent ; leaves 3"-14" long ; flower-clusters 2'" diam. — Hae. Trinidad I, Cr. ; [Martinique, 

 Brazil]. 



16. EOUSSELIA, Gaud. 



Mowers $ cymose, exinvolucrate, $ in 2-flowered, 2-bracteate heads. Calyx S 4- 

 partite, ? ventricose, 2-4-deutate, at length compressed, margined, accrescent to the 

 bract. Stigma filiform, deciduous. — A difi'use, creeping herb ; leaves alternate, quite en- 

 tire : stipules lateral ; inflorescence axillary, monoecious : ^ bracts quite entire, bearing 



69. R. lappulacea. Gaud. — Wedd. Monogr. Urt. t. 18 7). — Urtioa, Sw.l — Leaves 

 ovate, pointed, 8"'-3"' long, puberulous or glahrate ; S cymes shortly peduucled, ? heads 

 in the uppermost axils, sessile. — Hab. Jamaica!, Sw.,Al., Wils., Wullschl., common among 

 stones; Dominica!, /mr.; [Haiti, S. Thomas]. 

 Cannabis saliva, L., has been imroduced into Jamaica. 



