158 ' URTICACEjE. 



**** Leaves serrate. Stem flaccid, usually creeping, with the herbaceous branches, or 

 upper part, low, ascending. 



f Cymes contracted, subsessile. 



52. P. radicans, Wedd. Scandent and radicant, glabrous ; leaves ovate or ovate-ob- 

 long, bluntish, cuneate at the entire base, obtusely serrate beyond it, triplinerved : serra- 

 tures 4-3 on each margin : rhaphides linear on the upper side, punctiform or obsolete be- 

 neath ; cymes androgynous, contracted, few-flowered, subsessile. — Urtica, Sw. /—Stem elon- 

 gated, many-branched : branches short ; leaves &"-4!" long, 3"'-2'" broad : petiole V" 

 long : stipules minute. — Hab. Jamaica!, Sw., Mac/., Wils., in high, moist forests, ou trees. 



53. P. Swartzii, Wedd. Stem and branches ascending, glabrescent; leaves ovate, 

 pointed, or bluntish, dentate-serrate with the cuneate base entire, 3-nerved or triplinerved, 

 ciliate and with scattered hairs on the nerves : rhaphides inconspicuous, at length linear, on 

 both sides, or punctiform above ; petiole slender, pubescent ; cymes androgynous, contracted, 

 forming a single cluster, subsessile. — Urtica ciliata, Sic. ! Pilea, Bl. — Stem elongated, ra- 

 dicant along the creeping base ; leaves 8"'-18 '" long, 4"'-12'" broad : petiole 4"'-8" / long : 

 stipules small, persistent. — Hab. Jamaica!, Sw., Wullschl., in rocky woods; [Cuba!]. 



54. P. nummularifolia, Wedd. Hairy; stem creeping, radicant, elongated ; leaves 

 orbicular or oval-orbicular, crenate beyond the middle, 3-nerved : rhaphides large, linear, on 

 both sides ; cymes in the uppermost axils, androgynous, contracted into a single cluster, 

 subsessile.—^. t. 131./. 4; Act. Holm. 1787. t. 1. /. 2.— Urtica, Sw. .'—Ascending 

 branches 3"-l" long; leaves 6"'-4'" long, 6"'-3"' broad: petiole 4"'-2"', stipules l'"long. 

 — Hab. Jamaica !, Sw., in mountain woods, among stones. 



55. P. depressa, Bl. Glabrous (or glabrescent]; stem creeping, radicant, short; 

 leaves cuneate-orbicular, crenate beyond the middle, 3-nerved : rhaphides linear on the 

 under and near the margin of the upper side, minute and chiefly punctiform ones within the 

 same margin ; "cymes in the uppermost axil, dioecious, contracted, sessile." — Urtica, Sw. ! 

 —Stem 3"-4" long ; leaves 4"' diam. : petiole V" -. stipules persistent, spreading, oblong, 

 V" long. — Hab. Jamaica!, Sw., rare, among grasses; [Haiti]. 



++ Cymes contracted or few-branched, peduncled. 



56. P. r^ffndata, Gr. (n. sp.). Stem short, simple, ascending, glabrous, leaves ovate- 

 roundish, obtusely pauciserrate beyond the middle, 3-nerved, glabrous beneath -. rhaphides 

 linear, conspicuous chiefly on the upper side, crowded near the margin ; cymes in the upper- 

 most axils, unisexual, contracted, peduncled : peduncle equalling the petiole or the leaf. — 

 Habit of a small Peperomia. Stem creeping below, radicant from the inferior, usually 

 aphyllous nodes, 4"-l" long, delicate, leafy at the ascending summit ; leaves 8"'-2g'" diam., 

 broadly rounded, subtruncate at the base and somewhat contracted into the petiole, delicately 

 membranaceous, glaucous beneath, with a few pellucid hairs on the upper side, or quite 

 glabrous : serratures about 3 on each margin, less deep than in P. repens, sometimes obso- 

 lete : lateral nerves disappearing in the middle of the kmina : petiole 6"'-l'" long : stipules 

 \'" diam., roundish, persistent ; $ cymes glomeruliform, 2'" diam., hairy, $ unknown.— 

 Hab. Jamaica !, Wils., Wullschl. 



57- P. repens, Wedd. ! Stem creeping, radicant, hairy (or glabrescent) ; leaves ovate- 

 roundish, crenate-serrate, with the base entire, 3-nerved, hairy chiefly on the nerves beneath 

 (rarely glabrescent) : rhaphides linear, conspicuous chiefly on the upper side ; cymes andro- 

 gynous (rarely unisexual), contracted or few-branched, peduncled: peduncle equalling the 

 petiole or the leaf. — Act. Holm. 1 787, t. \.f. 1. — Urtica, Sw. ! P. nummularifolia, Gr. Carib. 

 {non Wedd.).— Stem 6"-12" long, often densely hairy ; leaves 10"'-6"' long, 8"'-4"' broad, 

 often as long as broad : lateral nerves disappearing in the arches beyond the middle of the 

 lamina : petiole 4"'-l'" long : stipules broadly oblong, 1'" long, spreading, persistent. — Hab. 

 Jamaica !, Bancr., Wullschl.; Trinidad !, Lockh. ; [Cuba!, Haiti!, Guadeloupe!]. 



58. P. insequalis, Wedd. Stem short, ascending, hairy above, or glabrescent ; leaves 

 ovate, pointed, coarsely crenate-serrate, with the base entire, 3-nerved, glabrous (or with a 

 few pellucid hairs) : rhaphides linear, on both sides ; cymes in the uppermost axils, andro- 

 gynous, few-branched (or contracted) : peduncle equalling the leaf. — Wedd. Monogr. Vrt. t. 



