UETIUACE^j 155 



35,. V. expansa, Gr. Woody ; leaves elliptical or elliptical-oblong, bluutish or point- 

 leted, usually emargiiiate at the base, crenate (rarely sinuate-repand), glabrous; cymes axil- 

 lary or lateral, peduncled, many times divaricate-dicholomous ; ? flowers long-pedicellate ; 

 achenimn . . . . — Urtica, Sw. !, adnot. — Nearly allied to the preceding ; leaves 7"-3" long, 

 8"-l" broad. — Hab. Jamaica I, Siv., March, Wullschl., in the southern districts. 



36. U. baccifera. Gaud. Shrubby or arborescent, often prickly ; leaves oval or round- 

 ish, sinuate-dentate, glabrous or glabrescent ; cymes lateral, many times trichotomous ; ^ 

 flowers pedicellate ; acherawm, exceeding the baccate calyx. — Jacq^. Schoenbr. i,. 387 ; 

 Desc. n. 6. i;. 433.— Urtica, L., Sw..'— 10'-12' high, or lower; leaves 4"-12" long.— 

 Hab. Jamaica!, Wils., March; Trinidad!, Cr.; [Cuba! and Central America! to Southern 

 Brazil!]. 



** Cymes contracted into branched or simple splices ; rhofphides on the upper leaf-side 



numerous, linear. 



37- U. crassifolia, Wedd.t Woody; leaves oval-roundish, bluntish, rounded at the 

 base, crenate or subentire, triplinerved, long-petioled, glabrous or glabrescent beneath ; S 

 flower-clusters in axillary, branched spikes, which are exceeded by the petiole ; achenium 

 ... .—Leaves 10"-6" long, 8"-5" broad: petiole 5"-3" long ; ? unlmown.— Hab. Domi- 

 nica !, Imr. 



38. U. microcarpa, Wedd. .'■ Shrubby or arboreous ; leaves eUiptical-oblong, point- 

 leted, bluntish at the top, rounded or cuneate at the base, crenulate or subentire, S-nerved, 

 glabrous or glabrescent beneath on the nerves ; flower-clusters of both sexes in axillary 

 branc'hed spikes which exceed the petiole ; achenium exceeding the calyx. — A low tree or 

 shrub; leaves 4''-3" long, 2"-li'' broad, membranaceous: petiole 13"'-6"' long. — Hab. 

 Jamaica !, Macf., Wils., Al., in the central and northern hills. 



39. U. spicata, Wedd. I Woody ; leaves oblong or elliptical-oblong, bluntish at the 

 pointed top, emarginate at the base, repand-entire, S-nerved, glabrous : ? flower-clusters in 

 axillary, subsessile, simple spikes, which are nearly as long as the petiole ; achenium exceed- 

 ing the calyx.-r-Leaves 5"-2" long, 14"-1" broad, papery: petiole 8"'-4"' long.' — Hab. 

 Jamaica !, Dist. 



SuBTKiBE 2. PROCBIBEja.— Segments of ? calyx usually 3. Stigma penicillaie. — 

 No stinging hairs. Herbs ; leaves opposite in the West Indian species. 



13. PILEA, Undl. 



Calyx (J 4 (-2) -partite, ? 3(-2-4)-partite, with one segment larger and usually gibbous 

 below the top.— -Leaves usually bearing rhaphides: one leaf (of the pair) often larger than 

 the other : stipiiles axillary ; cymes axillary. 



§1. Leaves small, uninerved. — Stem diffuse, flaccid. 



40. P. microphylla, [Aebn. Glabrous ; leaves^ obovate or roundish, quite entire, 

 uninerved : rhaphides on their upper side mostly transverse, linear ; cymes subsessile, con- U 

 traoted, exceeded by the leaves, usually androgynous. — Stem many-branched, annual or 

 suflrutescent, somewhat succulent ; leaves unequal (in the pair) : the smaller resembling the 

 stipules. The different forms of this variable species look like distinct species, but their 

 characters are of no VEdiie : — 



o. Leaves minute (1'"— 2i"' long), obovate, with a bluntish point, smooth beneath : all 

 rhaphides parallel, transverse, or the margirial ones ai'cuate. — SI. t. 93./. 3. — Parietaria, L. 

 Urtica, Sw. I Pilea muscosa, lAndl. 



p. trianthemoides, Lindl. Leaves larger (4"'-8"' long), obovate, rounded at the top, 

 somewhat punctate beneath : rhaphides parallel, transverse, or mixed with several oblique 

 ones. — Urtica, Sw. ! 



y. succulenta. Leaves orbicular (l^"'-2i"' diam.), rounded or shortly cuneate at the 

 shortly petioled base, foveolate beneath, deciduous : transverse and oblique rhaphides usually 

 mixed.' — Urtica trianthemoides, var., Sw. Herb, — Stem suffrutescent, succulent. Allied to 

 this is U. herniarioides, Sw. 1, a Haiti form, with an annual, filiform stem. 



