^ TENTANBRIA. DIGYNIA. 



110. SIUM. Nutt. Gen. 271. 



[An ancient name, of obscure and uncertain etymology. See De Theh!^ 

 Involucre and invoZtice^s many-leaved. Petals cordately inflected. Fruit subovate, laterally compiriEsaed. 



iS. LATiFOLiuM. Sm. Stem angular, sulcate; leaves pinnate; leaflets oblong-lanceolate, equally serrate. 

 Fii/go— Broad-leaved Water Parsnep. 



Fl- Latter end of July, and after. Fr. mat. Middle of September. 



IJab. Borders of creeks, and swamps: along Brandywine: frequent. 3 to 5 feet high: flowers white.- 



Obs. We have two distinct varieties of this: one of which, Mr. Schweinitz says, approaches near the 

 European p!»«t. The other, and more common variety, is larger, — the stem more strongly channelled, 

 tlie leaves composed of larger and more numerous leaflets, the terminal one often incised, and sometimes 

 thrte lobed, or rather tricuspidate. Mr. S. calls this variety S. \AxUo\i\im americanvm. The name {suU 

 catam.) suggested by Dr. Pcrsoon, seems to me to be belter adapted to the species, than that of latifoliuBU 



S. LOXGiFOLiUM. Phi Umbels nearly naked; leaflets linear-lanceolate, often falcate, mostly entire. 

 Fi. Middle of August. Fr. mat. Latter end of September. 



JIab. Low, moist grounds: near Hiester'sTannery: frequent. 3 to 5 feet high: flowers white. 



(.^'s. There seems to be some little confusion respecting this species. Mr. Schweinitz informs me it is 

 *' the plant so variously named,— by Nuttall, (Enanthe ambigua; by Torrey, Pastinaca ambigua; and by 

 PitrsA, Siumlongifoiium." If so, Mr. Nuttall must be in error, with respect to his S. lineare. The stem, 

 in my specimensyis striate, and not grooved. Both this and the foregoing are said to be poisonous,— espe-c 

 cialiy to horned cattle. 



111. CONIUM. Niiit. Gen. 261. 

 [Etymology obscure : See Reea' Cyclopcedia. Art. Conktm.] 



fTit'o/ucf/s halved, mostly 3 leaved. Cal. entire. Frai; ovate, gibbous. 5efds 5 ribbed; intervals flat. 

 C. MACULATL'M. Cyclop. Stem muchbranched, grooved, smooth, spotted; leaves supradecompound. 

 i'ulgo — Common Hemlock. 



Fi. Last of June, and after. Fr. mai. Beginning of September. 



Hab. Rich, shaded grounds: H. Fawcett's, &c. not common. 2 to 4 feet high: ilowers white: 



Obs. This is a foreigner; and only to be met with about old settlements. It is an active poison; and al- 

 though nauseous to the taste, is not altogether a safe plant to have about houses. Its reputation, as a med- 

 icine, is well known to Physicians. The green herb is sometimes employed, in popular practice, in the 

 form of cataplasnijfor painful, ill conditioned ulcers. 



tt Involucels 0: Umbels simple. 



112. HYDROCOTYLE. Nutt. Gen. 2.55. 



JGr. Hydor, water, and Kotyle, a cup, or cavity; in allusion, perhaps, to the fijrm of its leaves.] 



Cal. 0. Petals entire, spreading. Fruit sub-orbicular, or reniform, laterally compressed. 



TI. AAiERiGAwA. Ell. Lcaves reniform-orbicular, slightly 7 lobed, crenate; umbels few flowered, sessik. 



7'!//g-o— American Marsh-Penny-wort. 



Fl. Beginning of July, and after. Fr. mat. 



Mab. Swamps, a.nd moist, shaded grounds: frequent. 6 to 12 inches long: flowers greenish white- 



113. PANAX. Nutt. Gen. 254. 

 [Gr. Pan, all, and .JAos a remedy; an imaginary Panacco, or universal medicine.] 



Polygamov.a.- t'/ube/ pedunculate, globose. Malk, C«/. turbinate, entire, colored. 

 Hermaph. Cal. 5 toothed, small, persistent. Berry reniform-cordate, sometimes 3 seeded. 



p. TRiFOLiuM. PA. Root round-tuberous; leaves in threes, t^rnate and quinate ; leaflets oblon§,-lanceolat« . 



Vvli^o — Dwarf Ginseng. 



Fl. Latter end of April. Fr. mat. Last of May. 



Hub. Moist, low, shaded grounds; along rivulets: frequent. 6 to 9 inches high: flowers white. 



Ohs- This delicate little snecies is frenerally, if "ot constantly, Dioicovs; and therefore apt to puzzle 

 young Botanists. The fruit is triangular-ovate, and crowned with three spreading, persistent styles. 



p. QuiA'QUEFoiiujM. Ph- Root fusiform; leaves in threes, quinate; leaflets oboval, acuminate, petiolate. 



Vrdiro — Ginseng. 



Fl. Beginning of July. Fr. mat. Latter end of September. 



Hab- Rich woodlands: "Forks of Brandywine; Great Vallej': rare. 1 to2feethigh: flowers greenish white. 



Oh». Tn some of my Inrger, rank specimens, the leaves are in fours, with folioles by sevens; the latter 

 rfi!itfd. so as to he r.Imostrhomhoicial. The fruit of this species, when ripe, is a handsome, smooth, bright 

 red berry. It in described as being cordate; but the perfect onesj so fax as I have observed, are exactly 



