290 CORNACEiE. Cornus. 



A shrub 4-8 feet high, with straight somewhat dotted brandies. Leaves 2-3 inches 

 long and 1 - li inch wide, pale green above, sprinkled with short whitish hairs. Cymes 

 very numerous, giving the shrub a white appearance when in flower, elongated when in fruit. 

 Calyx-teeth minute. Ovary canescent : stigma thick, capitate. Petals rather acute. Drupes 

 about the size of a small pea, at first nearly white, but when fully mature assuming a leaden 

 tinge. 



Thickets, low grounds, and on hill-sides. Fl. May - June. Fr. September. Very distinct 

 from C. stolonifera. 



5. Cornus sericea, Linn. Swamp Dogwood. Red-rod. 



Branches spreading, purplish ; the branchlets, cymes and petioles woolly-pubescent ; leaves 

 oovate or elliptical, acuminate, nearly smooth above, silky-pubescent underneath ; cymes 

 depressed, crowded ; calyx-teeth lanceolate ; petals lanceolate-oblong, obtuse ; drupes globose, 

 pale blue. — Linn. mant. p. 199 ; IHerit. I. c. p. 5. t.2; Pursh, fl. 1. p. 108 ; Ell. sk. 1. 

 p. 208 ; Bart. veg. mat. med. \.t. 9 ; Torr.fl. \.p. 178 ; DC. prodr. 4. p. 472 ; Beck, bot. 

 p. 153; Darli7jgt. fl. Cest. p. 107; Torr. ^ Gr. fl. N. Am. 1. p. 652. C. lanuginosa, 

 Michx. fl. 1. p. 92. 



A shrub 6- 12 feet high, with straight spreading branches; the bark of. a greenish- or 

 brownish-purple color. Leaves 2-4 inches long and 1-2 inches wide, the pubescence a 

 little shining ; veins somewhat rusty-colored : petioles about three-fourths of an inch long. 

 Cymes on a long peduncle, about 2^ inches in diameter. Calyx-teeth very conspicuous. 

 Petals white. Stigma thick, capitate. 



Margin of swamps and banks of streams. Fl. June. Fr. September. 



^ 2. Floipcrs capitate, surrounded by a pelaloid involucre. — Trees. 



6. Cornus Florida, Linn. Common Dogwood. Flowering Dogwood. 



Leaves of the involucre 4, obcordate, with a callous notch at the apex ; drupes oval ; leaves 

 ovate, acuminate. — Linn. sp. I. p. 117 ; I'Herit. I. c. p. 4 : Michx. fl. 1. p. 91 ; Bot. mag. 

 p. 526 ; Michx. fl. sylv. t. 48 ; Pursh, fl. l. p. 108 ; Ell. sk. I. p. 207 ; Bigcl. med. bot. 2. 

 t. 28, andfl. Bost. p. 57; Torr.fl. l.p. 178 ; Bart. veg. mat. med. I. t. 3; Beck, bot. p. 153 ; 

 Darlingt.fl. Cest. p. 106 ; "Guimp. Otto <^ Heync, holz. t. 19 ;" To, r. ^- Gr.fl. N. Am. 1. 

 p. 652. 



A tree 15-30 feet high, witii a trunk 3-7 inches in diameter ; the bark grayish, and 

 cracked into small portions wiiich are more or less square in their outline : wood hard and 

 very compact, the alburnum white, and the heart of a brownish or chocolate color. Branches 

 .expanding. Leaves acute at the base, whitish underneath ; the hairs mostly fixed by the 

 middle. Flowers sessile, in small dense heads, which are subtended by a large white or 

 slightly purplish involucre nearly three inches in diameter. Calyx-teeth short, triangular. 



