178 TETKANDRIA. MONOGYNIA. cornxjs. 



rope. I have a variety found near Ogdensburg, New-York, 

 by J.J. Van den Heu-vel, Esq. in which the leaves of 

 the involucrum are narrowed at the base, and the flowers in- 

 distinctly corynabose. 



2. C. jlorida L. : arborescent ; leaves ovate, acuminate : 

 involucrum large, with obcordate leaflets. Sp. pi. I. p. 661, 

 me r i t. Corn. p. 4. no. 3. M ic h. FL I. p. 9 1 . Mich. 



f. Arb. t.78. Pursh Fl. I. p. 108. Big. Bost. p. 38. 

 Elliott Sk. 1. p. 207. Bart. Veg. Mat. Med. 1. t. 3. 

 Big. Am.Med.Bot.il. t. 73. W a 1 1. Car. i,. QB. Gron. 

 Virg. p. 17. Cates. Car. p. 27. t. 27, Bot. Mag. t. 27. 

 Roenu (Jr Schult. III. p. 319. 



A tree 15 — 30 feet high, with expanding branches; trunk 4 — 8 

 inches in diameter ; wood hard and close grained ; bark gray. 

 Leaves opposite, entire, prominently ribbed, whitish beneath ; 

 the younger ones pubescent. Flowers in terminal heads. In- 

 volucrum 2 or 3 inches in diameter, white, sometimes with a 

 tinge of red, at first folded round the flowers ; leaflets callous 

 and inflected at the tip, appearing notched. Frofier calyx 

 small, tubular, pubescent, with the segments obtuse. Corolla 

 greenish-yellow ; petals lanceolate, rather obtuse. Stamens 

 nearly as long as the corolla ; anthers incumbent, oblong. 

 Style shorter than the stamen ; stigma capitate. Drupe oval, 

 scarlet. Common Dog-wood. 



Hab. In woods; common. May—June. 



The bark is a valuable bitter and tonic. See the works of 

 Bar t on and Bigelow above quoted. 



* * Flowers nakedf in cymes. 



3. C. sericea PHerit.: branches expanded; leaves 

 ovate, acuminate, silk}' ferruginous beneath ; cymes depress- 

 ed, woolly. PHerit. Corn. n. 6. t. 2. Wil/d. Spec. I, 

 p. 663. Pursh F/. 1. p. 108. Elliott Sk. I. p. 208. 

 Bart, Veg. Mat. Med. I. t. 9. i? o e m. (i^ Schult. III. 

 p. 320. C. lanuginosa Mich. Fl. I. p. 92. C. alhn Walt. 

 Car. p. 88. C. ccerulea Lam. Enc. II. p. 1 16. 



A shrub 8 — 12 feet high; branches spreading, dark brow», 

 smooth, except the young ones, which are pubescent. Leaves 

 opposite, on petioles one third their length, generally a little 

 cordate at the base ; nerves beneath covered with a brownish 

 shining pubescence. Cyme on a villose peduncle about 2 in- 

 ches long. Flowers crowded. Calyx minute. Corolla white ; 

 petals linear. Drupe ovate, bright blue. 



Hab. On the banks of rivers and in shady moist thickets. 

 June. 



4. C. sanguinea L. : branches straight ; leaves ovatCj 



