CRTICA. 



Steds roundifh, black. Differs from the laft in its fmooth- 

 nefs, darker colour, dioecious^^owfrx, and more numerous, 

 entangled, deprefled, copioufly branched, _y?fmx. 



44. U. herniarlfolla. Rupture-wort Nettle. Willd. n. 40. 

 (U. herniarioides ; Swartz Ind. Occ. 309. Aft. Holm. 

 for 1787. t. 2. f. I.) — Leaves oppofite, roundifh, entire; 

 tapering at the bafe : the terminal ones four in a whorl. 

 Flowers terminal, ftalked, monoecious. Stem thread-fhaped, 

 difFufe. — Found on large ftones, in the rivers and rivulets of 

 Hifpaniola. A very fmall, flender, fmooth, trailing, annual 

 herb, three or four inches long at moll, not much branched. 

 Leaves ftalked, fomewhat fpatulate, bluntifh, fcarccly two 

 lines in diameter ; their upper furface covered with depreffed 

 briftles, as if ftitched, but not rough to the touch. Flowers 

 exceffively fmall, in little terminal monoecious tufts. Seed 

 brown. 



45. U. microphylla. Small-leaved Nettle. Swartz Ind. 

 Occ. 305. Willd. n. 41. Ait. n. 14. (Parielaria micro- 

 phylla; Linn. Sp. PI. 1492. Am. Acad. v. 5. 412. Her- 

 niaria lucida aquatica ; Sloane Jam. v. i. 145. t. 93. f. 2.) — 

 Leaves oppofite or cluftered, ovate, acute, fucculcnt, nearly 

 entire. Flowers fcattered, dioecious. Stems afcending, 

 branched in the upper part. — Very common throughout the 

 Weft Indies, in walle or watery places, or on old walls, &c. 

 flowering throughout the year. The roots are perennial, 

 long and capillary. Herb much ftouter and more ereft than 

 the preceding, about four inches high, with innumerable 

 minute leaves, refembling that fpecies, but more ovate and 

 acute, as well as occafionally notched ; their upper fide in 

 like manner clothed with clofe briftles. Flozvers axillary, 

 ftalked ; the male largeft, reddifh ; the female on a feparate 

 plant, with (horter ftalks, crowded, very minute. Seed 

 roundifti, pohfhed. 



46. U. trianthemoldes, Purflane-leaved Nettle. Swartz 

 Ind. Occ. 307. Willd. n. 42 — Leaves oppofite, obovate, 

 obtufe, entire ; one much fmaller than the other. Flowers 

 monoecious. Stem ereft, branched. — Native of (hady rocky 

 places, near rivers, in Hifpaniola. Perennial. Stem herba- 

 ceous, a foot high, jointed, branched from the bafe, fuccu- 

 lent and imooth ; ultimate branches alternate, fpreading, 

 leafy. Leaves ftalked, of a ftiining green, fmooth to the 

 touch, but ftriated, as it were, with fmall, infeparable, flat- 

 tened briftles, on the upper fide ; the under being dotted, 

 and only partially hairy. The largeft leaf of each pair is 

 not an inch long ; the fmaller fcarcely one-fifth that fize. 

 Stipulas none. Flonuers numerous, in axillary or lateral tufts, 

 at each joint of the branches. The female calyx is faid to 

 confill of three valves. 



47. U. Jerrulata. Blunt-notched Nettle. Swartz Ind. 

 Occ. 313. Willd. n. 43. — Leaves oppofite, lanceolate, ab- 

 ruptly ferrated, nearly feffile ; tapering at the bafe. Heads 

 of flowers axillary, ftalked. Stem ihrilbby, quadrangular. 

 — Native of limeftone rocks, in the interior of Jamaica, 

 flowering in the vernal months. A little, flirubby, bufliy 

 plant, about a foot high, with fcattered, fquare, roughilh, 

 but not hairy, leafy brandies. Leaves about an inch long, 

 dark green, minutely briftly, or ftitched, as it were, on the 

 upper fide, hke feveral of the foregoing ; paler beneath ; 

 tapering at the bafe into Ihort footjlalks ; furnilhed in their 

 upper part with blunt, fomewhat glandular, ferratures. 

 Flo-u/ers monoecious, their Jlalis red, fiiorter than the leaves ; 

 the male ones with a red calys. 



48. U. lucida. Shining Cut-leaved Nettle. Swartz Ind. 

 Occ. 315. Willd. n. 44. — Leaves oppofite, pinnatifid, fhin- 

 ing, clothed on both fides with deprefled briftles. Heads 

 of flowers on axillary ftalks, longer than the leaves. Stem 

 ihrubby, angular.— Found jji rocky, or wafte places, among 



Ji 



the cooler mountains of Jamaica, flowering in fpring. A 

 very pretty little fhrub, the height of the laft, with brown 

 quadrangular branches. The bright-green fhining leaves, 

 fcarcely half an inch long, refemble thofe of an Oak, or 

 rather of Myrica quercifolia, in miniature, their lobes and 

 finufes being rounded in a fimilar manner. Their flattened 

 briftles are large in proportion. Flotuer-Jlalh fimple, capil- 

 lary, each bearing a very fmall head, in which the male and 

 iemAt Jlonvers are intermixed. 



49. U. tr'dobala. Three-lobed Glaucous Nettle. Poiret 

 in Lamarck n. 14. Willd. n. 45 — Leaves oblong, obtufe, 

 undivided or three-lobed, ftalked, three or four in a whorl, 

 hoary with clofe-preffed briftles. Stem round, with quad- 

 rangular branches. — Gathered in the ifland of Mauritius by 

 Commerfon, one of whofe fpecimens is before us. This, 

 hke what M. Poiret examined, is deftitute of fruftification, 

 but the habit, and efpecially the remarkable deprefled 

 briftles of the leaves, fo copious as to render the plant 

 glaucous or hoary, fcarcely allow of a doubt as to the 

 genus. The Jlem is fomewhat fhrubby, bufhy, of taller 

 ftature than the two laft ; round, glaucous, and leaflefs be- 

 low ; furnifhed at the upper part with elongated, fquare, 

 leafy, oppofite or ternate, branches. Leaves on longifh 

 ftalks, fpreading, of a greyifh-green, fmooth to the touch, 

 linear-oblong, rounded at each end, fcarcely an inch in 

 length ; fome of them quite undivided and entire ; but the 

 greater part are furnifhed at e.ich fide, about the middle, 

 with a fmall, fpreading, obtufe lobe. A few of the lower 

 leaves are oppofite only. 



50. U. cuneifolia. Smooth Wedge-leaved Nettle. Swartz 

 Ind. Occ. 319. Willd. n. 46. — Leaves oppofite, obovate- 

 wedgefhaped, very fmooth, toothed at the end ; one much 

 fmaller than the other. Clufters terminal, on capillary 

 ftalks. Stem fhrubby, round. — Native of raalfy lirae-ftone 

 rocks, among the mountains of Jamaica. Root creeping. 

 Stem from three inches to a foot in height, ereft, branched, 

 ftriated, fmooth. Leaves almoft rlblefs, on very fhort 

 ftalks, without Jliptdas, one of each pair fix times the fize 

 of its companion, which is obovate and nearly entire. 

 Flowers monoecious, in little tufts, not capitate, on foli- 

 tary, reddifh, fpreading ftalks, from the bofoms of the ter- 

 minal leaves, which they do not equal in length. Male 



Jlowers with a thick red calyx, and white anthers ; female 

 ones more numerous, and much fmaller. Dr. Swartz men- 

 tions a dwarf variety, only an inch high, with ovate leaves, 

 and extremely mmute Jloivcrs. This is one of the very few 

 fpecies of which we have feen no fpecimens. 



51. U. cuneijormis. Roughifh Wedge-leaved Nettle. 

 Poiret in Lamarck n. 20. Willd. n. 47. — Leaves oppo- 

 fite, ftalked, obovate-wedgefhaped, ferrated, triple-ribbed, 

 minutely hairy. Flowers tufted, on fhort axillary ftalks. 

 Stems fimple, afcending. — Gathered by Commerfon, in the 

 ifle of Mauritius. Root perennial, creeping. Stems feveral, 

 about four or five inches high, roundifh, leafy, rather 

 woody, and numeroufly jointed. Leaves almoft an inch 

 long, ftrongly ferrated except at the tapering bafe, the op- 

 pofite ones very flightly unequal in fize. Flowers reddifh, 

 few together, on lateral ftalks, about the length of the 

 footftalks. 



Seft. 2. Leaves alternate. 



52. U. lappulacea. Bur Nettle. Swartz Ind. Occ. 317. 

 Aft. Holm, for 1787. t. 2. f. 2. Willd. n. 48 — Leaves 

 alternate, ovate, roughifh, hairy, entire. Flowers terminal, 

 nearly feffile. Seeds triangular. Stem difFufe. — Very com- 

 mon iu dry ftony places in Jamaica, flowering in fpring. 

 The afpeft of the plant is like a Partetaria. Stem trailing, 

 much branched. Leaves ftalked, from a quarter to three- 

 quarters 



