652 CORNACEiE. Corn us. 



DC! prodr. 4. p. 472; Darlingt. fl. Cest. p. 107. C. alba? Walt. I. c. 

 C. cserulea, Lam. I. c? C. rubiginosa,' £/ir/i. heitr.? C. lanuginosa, 

 Michx! fl. \. J)- 92- C. cyanocarpus, Mcench, not of Gmel. C. obliqua, 

 Raf. ! ann. nat. p. 13. 



0.? occidentalis : leaves larger, more tome ntose beneath. — C. circinata, 

 Cham. Sf Schlecht. in Linncea, 3. p. 139. C. alba /?. Hook.! I. c. C. 

 pubescens, Nutt. 7nss. 



Banks of streams and in wet meadows, Canada! to Georgia! and Louisia- 

 na. May-June. 0. N. W. Coast, Douglas, Mr. Tohnie! Dr. Scouler! and 

 St. Francisco, California, Chamisso. — Stem 6-10 feet high ; the bark greenish- 

 purple or usually brownish-purple. Leaves pale green, commonly narrowly 

 ovate and conspicuously acuminate ; sometimes almost lanceolate ; some- 

 times large, broadly ovate, and at length nearly glabrous (except the 

 veins) beneath : pubescence of the lower surface soft, either whitish or 

 rusty-colored, especially the veins. Petals yellowish-white. Stigma thick, 

 capitate. — A well-marked species, although exhibiting many diversities in 

 foliage. 



§ 2. Flowers capitate, surrounded by a petaloid involucre : trees. 



' •' 8. C florida (Linn.) : leaves of the involucre 4, obcordate, or with a callous 

 notch at the apex; drupes oval; leaves ovate, acuminate. — Linn. ! hort. 

 Cliff, p. 38, 6^- spec. I. p. 117,- Willd.! spec. 1. p. 661 ; VHer. I. c. p. 4 ,• 

 Michx.! fl,. 1. 1J. 91 ; Bot. mag. t. 526; Michx. f. sylv. t. 48; Bigel. med-. 

 hot. 2. t. 73 ; Bart. veg. mat. med. 1, t. 3; Ml. sk. 1. p. 207 ;' Darlingt. fl, 

 Cest. p. 107 ; Guimp. Otto, Sj' Hayne, holz. ;. 19. 



Woods and low grounds, Canada! to Florida and Louisiana! May- 

 June : in the Southern States, March-April. — Tree 15-30 feet high, with 

 expanding branches ; the bark grey: wood hard and close-grained. Leaves 

 ovate or elliptic, acute at the base, whitish beneath ; when young pubescent, 

 especially on the veins. Involucre about 3 inches in diameter, white, often 

 with a tinge of red. Petals greenish-yellow. Drupes bright red. — Common 

 Dogwood. Flowering Dogwood. 



9. C Nuttallii (Audubon) : leaves of the involucre 4-6, obovate, acute or 

 acuminate, narrowed at the base; drupes oval; leaves oval, scarcely acu- 

 minate.^Audubon ! birds of Amer. t. 367. C. florida, Hook. fl. Bor.-Am. 

 1.7). 277, partly. 



Oregon, Dr. Scouler! Mr. Tohnie! Nuttall! — Mr. Nuttall considers this a 

 very distinct species, and we incline to this opinion, although the involucre is 

 not constantly 6-leaved. The heads and involucres are usually considerably 

 larger than in C. florida. 



§ 3. Floicers in contracted umbel-like cyjnes, surrounded by a petaloid 

 involucre : stems herbaceous. 



•'"' 10. C Canadensis (Linn.) : flowering steriis simple, ascending, the subter- 

 ranean trunk creeping, a little woody.; upper leaves verticillate, on very 

 short petioles; involucre 4-leaved, much longer than tiie flowers; petals 

 greenish-white ; drupes bright red, subglobose. — Linn. aman. acad. 1. p. 

 157, l<fspec. I. c. ; L'Her. I. c. p. 2, t. 1; Bot. mag. t. 880 ; Michx.! fl. 1. 

 p. 91 ; Bigel.! fl. Bost. ed. 2. p. 57; Torr. ! I. c. ; DC. ! prodr. I. c. ; 

 Cham. Sf' Schlecht. in Linncea, 3. p. 138 ; Hook. ! fl. Bor.-Am. 1. p. 277. 



Damp woods and shady swamps, Pennsylvania and New England States 

 to Labrador ! and Newfoundland ! and nearly to the Arctic Coast, (as far as 

 the Pine woods extend, Richardson) : west to Oregon ! Unalaschka and 

 Sitcha! May-June. — Flowering stems about 6 inches high, with one or 



