CKiDiuwr. PENTANDRIA. DIGYNIA. 307 



Pursk. In New-York. Muhlenberg. On Lynn- 

 Beach Island, near Boston. Bige low. 



This is an obscure plant to me. Is it a Ligusticum ? 



2, C. atropurpureum Sp r eng,: radical leaves subcor- 

 date, simple, serrate ; cauline ones ternate ; leaflets ovate, 

 acute, subcordate ; middle one petiolate ; partial invoiucra 

 dimidiate, 3-leaved. R o em. 8z Sc hull. \L i^. 4in. Smvr- 

 NiUM atropurpureum Lam. E/iC. III. p. 667. Pursh Fl. 

 I. p. 196. Elliott Sk. 1. p. 360, Thaspium alropurpu- 

 reum J^utt. Gen. I. p. 196. 



Reoi perennial. Stem 2—3 feet high, smooth, sulcata, dichoto- 

 mously branched. Radical leaves mostly entire, subcordate ; 

 Stem leaves ternate, obtusely serrate, with the middle leaflet 

 3-lobed or ternate. Umbels opposite the leaves. Universal 

 invoiucrum wanting. Partial umbels dense. Calyx 5-toothed. 

 Petals dark purple, oblong, acuminate, iuflexed at the point. 

 Styles divaricate, as long as the germen. Fruit small, ellipti- 

 cal, with 5 somewhat winged ridges. 



HiB. On the rocky banks of rivers. Near Philadelphia^ June. 



204. SMYRNIUM. L.—SprengeL 



Invoiucrum few-leaved or 0. Fruit solid, ovate ; 

 cortex black, 3-ribbed ; sides contracted from the com- 

 inissure. Mbumen involute. Roem. ^ Schult. Gen, 

 1183. 



S. cordatum W alL: radical leaves simple, cordate, cre- 

 aate ; stem leaves ternate, serrate ; umbels terminal. W alt. 

 Car. p. 113. Mich. F LI. ^. MO. P ur s h FL I. p. Id6. 

 Elliott Sk. I. p. 359. Roem, &l Schult. VI. p. 438. 

 Smyrnium trifolialum N u 1 1. Gen. I. p. 195. Apium folio 

 infimo cordato, Cold. Jsl'oveb. 56. 



Root perennial. Stem 2 — 3 feet high, sulcata. Radical leaves 

 round-cordate, on long petioles; stem leaves 3-parted, tri- 

 foliate. Umbels axillary, on long peduncles, 8 — 10-rayed. 

 Partial invoiucra 2 — 3-leaved, Calyx 5-toothed. Corolla 

 yellow. Fruit small, black, 3-ribbed ; margins turgid. 



Hab. On rocky hills. Common in New-Jersey, Sec. May- 

 June. 



205. CICUTA. L. 



Invoiucrum almost wanting. Fruit ovate, solid, 

 5-ribbed; intervals prommanU Roem. k? Schult. 

 Gen. 1188. 



