331 



POLYAXDRIA POLYGYN1A 



branaceous, coarsely and obtusely crenatc-dentate, or sub-lobed ; common petioU 

 an inch and half to 3 inches long, with a membranous amplexicaul margin at 

 base. Flotcers terminal, paniculate; peduncles slender, somewhat umbellate, or 

 in small fascicles. Sepals mostly 1, pale violet-purple, elliptic, scarcely half as 

 long as the stamens. Filament* very slender ami thread-like; anthers long, 

 linear, mucronate, yellowish. Carpels semi-ovoid, striatc-sukate, acuminate 

 with the persistent style. 



Ilab. Rich woodlands: frequent. Ft. April— May. Fr. June. 



3. T. RueosuM, Jiit. Leaves super-decompound ; leaflets prominent- 

 ly veined beneath, cuneate-obovate and ovate oblong, 3-lobed at apex, 



the lateral ones often entire; flowers mostly dioicous, rather crowded; 

 filaments filiform. Beck, Bot. p. 6. 



T. carolinianum, DC. Pro dr. 1. p. 12. Also, Ell. Sk.2. p. 51. 

 Eat. .Man. p. 362. 



Rrr.osK Thaliotrux. 



Root perennial. Stem 3 to ."> feet high, branching, striate, smooth. Leaves pin- 

 nuely decompound ; leaflets 3 fourths of an Inch t<> an inch Long, and half an inch to 

 nearly an inch wide, petlolate, sometimes cordate at base, varying from cuneate- 

 obovateto ovate-obbh?, the terminal ones mostly 3-lobed at apex, 1 'Its obtuse, or 

 often rather acute, but not mucronate, the lateral leaflets often entire, all strongly 

 and sjmewhat rugosely veined, glaucous, and minutely pubescent on the veins 

 beneath, the margins entire and revolute. Flowers in rather crowded panicles, 

 dioicous, or s unetim s polygamous. Sepals white, elliptic-oblong, small. /Y/a- 

 meats filiform (somjlimes a little clavatc ?) ; anthers linear-oblong, mucronate. 

 & igmas linear, pubescent, with a serrulate margin on one sid ', Carpels obovoid- 

 oblong, acute at each end, beaked with the persistent style, ribbed and sulcate, 

 substipitatc. 



Ilab. Along shaded, swampy rivulets: frequent. Fl. June— July. Fr. Sept. 



Obs. This, it must be confessed, has much general resemblance to the follow- 

 ing; and Prof. Hooker thinks they are not specifically distinct. 



4. T. CoRM-Tr, //. Leaves super-decompound ; leaflets obovatc and 

 ovate-oblong, 3-lobed at apex, lobes mucronate, lateral leaflets often en- 

 tire, all somewhat pubescent beneath, with inconspicuous veins ; How- 

 ers dioicous, or polygamous; filaments subclavate. Beck, Bot. p. 4. 

 Ico.v, Hook. Am. 1. tab. 2. 



T. polygamum. MxthL Catal. p. 54, 



T. pubescens. Bart. Phil. 2. /;. 21. Florul. Cestr. p. 60. Also, 



Pursk, Am. 2. p. 2S8. Jfuti. Gen. 2. £.21, Td r. ten p. />. JS8. Not 



of DC. 



T. corynellum. DC. Proclr. I. p. 12. liigel. Bost. p. 220. Also, 



Eat. Man. p. 262, 



T. revolutum. Ell. Sk. 2. p. 49. Also, DC. I. c. Eat. I. c. 



Conx jits' Thalicthcm. VuJgo — Meadow Rue. 



Root perennial. Stem 4 to 6 feat high, stout (half an inch or more in diameter), 

 ftjtular,sulcate-angled,8omj what pub. s ent. Leaves pin nately decompound; leaf* 

 lets 3 fourth 8 of an inch to an inch and half long, and half an inch to an inch wide, 

 rarely subcordate at baee, the terminal ones mostly 3-lobed at apex, the lobes mu- 

 cronate, or rather with a small abrupt acuminaiion, the lateral leaflets often entire, 

 cliipiic, or ovate-oblong, all bluish glaucous and mure or less pubescent beneath, 



