POLYANDRIA. POLYGYNIA. 59 



Iv. TCLiPiFERA. Mx. arh. Leaves 4 lobed; or angularly truncate at the end, with nro side lobes. 



Fu/g-o— Poplar. Tulip poplar, or Tulip tree. AVhite wood. Canoe wood. 



Fl. Last of May. p,,, ^^t Last of Ociober. 



Hub- Rich woodlands, &:c. common. 80 to 120 feet high: flowers greenish yellow, tinged with red. 



Obs. This magnificent tiee is justly considered one of the greatest ornaments of o'Jr North American 

 forests. The s-peeies comprises two vanelie.s, called yrlloii', and lohite poplar; which are scarcely fo be 

 distmguished by any external marks-the difference bein;- chiefly in the color and texture ot the wood. 

 Ihe i/c//o!o poplar is deemed the more valuable of the two, for most purposes,— keiiit; more mellow 

 to work, and also more durable, when exposed to the weather. The wood of both is extensively wrought, 

 by cabinet-makers, and others; and is converted to a variety of uses— though its hygrometrical proper- 

 ties render it rather inconvenient, m many instances, during damp weather- The bark of this tree is a 

 valuaole tonic: for an account of which. See Ur. P. K. Rogers' Inaugural Thesis, Philad. lS02,-ana 

 the Mat«rm Medtca of the Bartons. The leaves, also, are said to atFord relief, when applied externalh-, 

 meases 01 gout and rheumatism. See Barton's Med. and Phys. Jownal Vol. 1. part 1. v. S2.— I have 

 fulT bloom ''■^'^ ° ^yild Stiawbenj {Frasarlavirsiniana,) is always ripe when this tree is1k 



1?7. CLEMATIS. Xatt. Gen. 4S3. 

 [Gr. Klema, a twig ,or runner; from its pliant, climbing .stem.] 

 Cal. 0. CoR. petals mostly 4. Seeds compressed, caudate; cauda mostly plumose- 

 €. viRGixiANA. Ell. Dioicous; climbing; leaves ternate; leaflets ovate, incisad-dentate, aruminate- 

 5^no«. C. virginica. Ph. .\ut:. K»/go-Virgin's Bower. Traveller's Joy. 



Fl. Beginning of August. Fr. mat. Beginning of October. 



JIab. Fence-rows; and thickets, in low grounds: frequent. 10 to 15 feet long: male flowers white, 

 cr^wnthefrurt'"''^^ ^'^'"^^^ ^""^ remarkable for the silken appearance of the long, plumose styles, which 



198. ANEMONE. A^nit. Gen. 484. 



fGr- Anemos, wind; the flower being supposed to open only when the wind blows.] 



Cai.. 0. Cor. petals 5 to 9, or more. Seeds numerous, mucronate, rarely caudate. 



A.- NEMOROSA.^//. Stem I flowered; stem leaves biternate; leaflets cuneate, incised-lobate, dentate. 



Ku/^'o— Wind-flower. Wood Anemone. 



Fl. Middle of April, and after. j.y. mat Latter end of JNIav. 



Hub. Moist woodlands; about roots of trees: frequent. 6 to 10 inches high: flowers reddish white. 

 pS Wfte'r Willd'tn.^' ^.?')'^M-^hr','^''^ '^^ '^'■'?'""^ leaflets deeply two parted; which Barton, (in Flor. 



A. THALiCTROiDES. Ph. Umbel involucrate; involucre 6 leaved; radical leaves biternate. 

 Synon. Thalictrum anemonoides. Mx. Ell. Tu/g-o— Hue Anemone. 



Fl. Latter end of April. p,., ^nat. Middle of June. 



Hab. Woodlands: very common. 6 to 10 inches high: flowers white. 



^vhJ'thJ}ilu°l'l'^}''^^ character of this plant is so equivocal, that our best botanists are divided in ot.inion 

 wnether it ought to be ranked with Anemone, or Thalictrum. 



A viRGi.-vrAXA. Ell. Dichotomous; leaves biternate, upper ones opposite; peduncles virgate, 1 flowered. 

 ^/.Latter end ol June, and after. Fr. mat. Beginning of September, and after. 



Hob i'ence-rows, and roadsides; frequent. About 2 feet high: flowers greenish white; seeds woolly. 



199. TPLILICTRUM. Nutt. Gen. 435. 



[Supposed to be derived from the Gr. thallo, to be green; alluding to its verdant habit.] 



Mostly DiqiQous: Cal. 0. Cor. petals 4 or 5. .SVawejis long. Seeds ecaudate, striate, terete. 



T. DioictJivr. Ph. Leaves supra-decompound; leaflets roundish-cordate, obtuse-lobate, glaucous beneath 



Synon. T. hpvigatum. Mx. r»/-o-Meadow Rue. 



Fl. Latter end of April, and after, Fr. mal. 



Hab. Woodlands: Bath woods: frequent. 9 to 15 inches high: flowers pale purple. 



^o?!n' ^ ^'r?i7^ experienced all the dilTtculties remarked by Michaux, in determining the species of Tha- 

 ..ictrum. This. I have little doubt is his T. lavigatum; and yet it agrees, in some respects, so well witli th-? 

 A- purparasc.ns, ot Pursh, that I atone time supposed it to be that species. 



T. RUGOsur.1? Ph. Stem striate; leaflets veined, sub-trilobate, or entire, cuneate, and oval, 

 FL Latter end of June, and after. Fr. mat. Beginning of September. 



•fc'*- "-V'-odla.id', anuswrvmps: Bath: frequent. 3 lo of^cl hi-h: flowers white. 



