12 



RANUNCULACE.E. IV. THALICTRUM. 



glaucous beneath, with the nerves hardly prominent, rather 

 revolute at the edges ; carpels ovate oblong ; stigma filiform 

 with membranous margins. Tj.. H. Native of North America, 

 on banks of rivers, in woody districts, the whole breadth of the 

 continent. Hook fl. bor. amer. 3. t. 2. Leaves bi or tripinnate. 

 Flowers white, or in many pale-purple, panic-led. Th. revolu- 

 tum D. C. syst. 1. p. 173. Th. Canadensis, Cornuti Canad. 186. 

 t. 187. 



Var. a. revolutum ; anthers linear-oblong. Th. revolutum. 

 D. C. syst. 1. p. 173. Var. ft. subglabrum. 



Var. ft, pubescens (Ph. fl. amer. sept. 2. p. 388.) anthers 

 elliptical ; leaves velvety, pubescent beneath. Th. corynellum. 

 D. C. syst. 1. p. 172. 



Cornuti' s Meadow-Rue. Fl.Jul. Aug. Clt. 1806. PI. 3 to 4 ft. 



1 1 TH. DIOI'CUM (Lin. spec. 768.) flowers dioecious ; filaments 

 filiform ; leaflets roundish, cordate, smooth, bluntly crenate-lobed, 

 glaucous beneath ; peduncles axillary, shorter than the leaves. 

 I/ . H. Native of North America, in shady grassy places, on the 

 banks of rivers from Canada to Virginia and elsewhere. Deless. 

 icon. sel. 1. 6. 8. Th. laevigatum, Mich. fl. bor. amer. ]. p. 

 322. Plant very smooth. Leaves 3-times trifid. Leaflets 

 stalked, glaucous underneath. Panicle branched, somewhat 

 corymbose at apex. Flowers white. Pericarps ovate, awnless. 



Dioecious Meadow-Rue. Fl. May, Jul. Clt. 1759. PI. 1 to 2 ft. 



12 TH. CAROLINIA'NUM (Bosc. ined. but not of Walt. D. C. 

 syst. 1. p. 174.) flowers dioecious; filaments filiform; leaflets 

 oval, 3 5-toothed, smooth, glaucous underneath ; peduncles 

 axillary, longer than the leaves. If. . H. Native of North Ame- 

 rica, from Pennsylvania to Carolina, on the banks of rivers and in 

 swamps. Th. rugosum, Pursh fl. amer. sept. 2. p. 388, but not 

 of Ait. hort. kew. Flowers white, in divaricating panicles. 



Var. ft, subpubescens (D. C. syst. 1. p. 174.) leaflets, a little 

 hairy at the nerves on the under surface. Native of New Jersey. 



Carolinian Meadow-Rue. Fl. June, Aug. Clt. 1818. PI. 1 to 

 2 feet. 



13 TH. PURPURA'SCENS (Lin. spec. 769.) flowers dioecious or 

 monoecious ; filaments filiform, colored ; leaflets somewhat or- 

 bicular, grossly toothed, glaucous underneath ; panicle contracted, 

 almost leafless. If. . H. Native of Pennsylvania and Virginia, on 

 dry sunny hills. Moris, oxon. 3. p. 324. Stems purple. Leaves 

 triternate. Panicle of female flowers erect. Ovaries 7,8. Styles 

 long, acute. Stamens purple. 



Var. ft, monoicum (D. C. syst. 1. p. 174.) paniclflBr-flow- 

 ered, female flowers at bottom, and male at top ofpanicle. 

 Native of New England. Filaments red. Anthers long, yellow, 

 acute. 



Purplish Meadow-Rue. Fl. May, Ju. Clt. 1699. PI. 1 to 2 ft. 



14 TH. JAVA'NICUM (Blum, bijdr. Spreng. syst. append, p. 

 221.) Stem 4-sided, striated ; leaflets orbicular, smooth, trifid, 

 glaucous beneath ; panicle forked, corymbose, erect ; flowers 

 dioecious. I/ . S. Native of Java. Flowers yellow. 



Java Meadow- Rue. Fl. June, July. PI. 3 feet. 



. 2. GENUINA, (genuinus, natural; species all hermaphro- 

 dite.) Flowers hermaphrodite. Leaves decompound. Roots 

 fibrous. 



15 TH. FOLIOLOSUM (D. C. syst. 1. p. 175.) stem round, 

 smooth, branched ; flowers in corymbose panicles, drooping ; 

 leaves quadripinnate ; leaflets somewhat ternate, roundish or cor- 

 date, 3-lobed, membranous, smooth ; petioles 3-parted. I/ . H. 

 Native of Upper Nipaul, at Suembu. Th. Dalinga, Hamilt. 

 MSS. Flowers small, yellow. 



Leafy Meadow-Rue. Fl. May, July. PI. 1 ^ to 2 feet. 



16 TH. SANICUUEFORME (D. C. prod. 1. p. 12.) stem round- 

 ish, branched; flowers few, panicled; peduncles rigid, divari- 



eating; sepals reflex id; pericarps striated, pointed with the 

 long inflexed style. If. . H. Native of Nipaul. 

 Sanicula-formed Meadow-Rue. PI. 1-J- feet. 



17 TH. PETALOIDEUM (Lin. spec. 770.) stem round, almost 

 naked ; flowers corymbose ; filaments dilated at the apex ; leaf- 

 lets smooth, ovate, obtuse, entire or 3-lobed. If. . H. Native 

 of the mountains of Dauria, and on Mount Odon-Tchelen on the 

 confines of China. Deless. icon. sel. 1. t. 9. Lodd. hot. cab. 891. 

 Leaves ternately decompound. Sepals roundish, white. Filaments 

 flesh-colored. Anthers yellow. Pericarps 6. 8, sessile, oblong, 

 striated. 



Var. ft, stamineum (Lin. fil. suppl. 271). 

 Petal-like-sepaUed Meadow-Rue. Fl. June, July. Clt. 1799. 

 PI. 1| feet. 



18 TH. ALP!NUM (Lin. spec. 767.) stem quite simple, almost 

 naked, dwarf; raceme simple, terminal ; flowers nodding ; leaves 

 smooth, shining. If.. H. Native of Kamtschatka, Newfound- 

 land, Lapland, Greenland, Iceland, Pyrenees, &c. On most of 

 the highest mountains in Wales and Scotland. Smith, eng. bot. 

 t. 262. Lightf. scot. t. 13. f. 1. ; Fl. dan. t. 11. A small very 

 smooth plant. Leaves chiefly radical, twice ternate and some- 

 what pinnate ; leaflets wedge-shaped, dark green and shining 

 above, glaucous beneath. Sepals whitish, acute. Anthers 

 tawny. 



Alpine Meadow-Rue. Fl. May, Jul. Britain. PI. to \ ft. 



19 TH. FOZ'TIDUM (Lin. spec. 768?) stem simple, naked at the 

 base, leafy in the middle, panicled at top ; leaves with clammy 

 pubescence ; leaflets obtuse, toothed. If. . H. Native of France, 

 Switzerland, Hungary, Siberia, Russia, &c. In valleys, on 

 hills, or in the fissures of calcareous rocks. Lam. ill. t. 497. 

 f. 2. Waldst. and Kit. pi. hung. 2. p. 190. t. 174. Th. styloi- 

 deum, Lin. fil. suppl. 271. Th. saxatile, Vill. dauph. 4. p. 714. 

 Stem clammy-pubescent, covered with scales at the base instead 

 of leaves. Petioles 3-parted. Segments of leaves twice or thrice 

 pinnate. Leaflets orbicular, cordate, irregularly 3 to 5-lobed at 

 the apex. Panicle erect, spreading, few-flowered. Flowers 

 nodding. Anthers yellow. Sepals reddish on the outside. 



Fetid Meadow-Rue. Fl. May, Jul. Clt. 1640. PI. 1 ft. 



20 TH. PUBE'SCENS (Schl. pi. helv. D. C. syst. 1. p. 176.) 

 stem simple, with a few leaves, panicled at top ; leaves clammy- 

 pubescent. If. . H. Native of Caucasus ; about Montpelier, and 

 in Lower Vallais, on chalky rocks. Th. Cornuti, Poir. diet. 5. 

 p. 319, exclusive of the synonymes and countries. Resembles 

 Th. feetidum, but with the leaves scattered equally over the stem, 

 and with the leaflets more acute. 



Pubescent Meadow-Rue. Fl. May, July. Clt. 1819. PI. 2 ft. 



21 TH. ACUTI'LOBUM (D. C. syst. l.p. 177.) stem simple, naked 

 at the base, leafy in the middle, and panicled at top; leaves pu- 

 bescent, viscid ; lobes of leaflets acute. If.. H. Native of Siberia. 

 Very like Th.ftctidnm. Deless. icon. sel. 1. t. 10. 



Ai-ute-lolvd Meadow-Rue. Fl. Ju. Jul. Clt. 1820. PI. l^ft. 



?2 TH. DIVE'RGENS (Link enum 584.) leaflets ovate-oblong, 

 pubescent beneath, bluntly 3-lobed ; branches and petioles divari- 

 cating ; panicle diverging. If. . H. Native of Siberia. Th. di- 

 varicatum, Spreng. new entd. 1. p. 37. No. 68. Flowers 

 yellow. 



Diverging-panicled Meadow-Rue. Fl. Ju. Jul. Clt. 1819. 

 PI. 2 feet. 



23 TH. SCHWEIGGE'RI (Spreng. syst. 1. p. 271.) stem erect, 

 furrowed ; leaflets ovate, cuneated, multifid and acutely toothed ; 

 petioles with stipulas at their base ; filaments capillary, elongated ; 

 anthers awned. I/ . H. Native of ? Flowers yellow. 



Schnieigger's Meadow-Rue. Fl. June, July. PI. 3 feet. 



24 TH. sauARRosuM (Steph. in Willd. spe. 2. p. 1299.) stem 

 round ; flowers panicled, drooping ; petioles stem-clasping, wing- 

 ed. I/. H. Native of Siberia. Leaves supra-decompound; 



