COKNACKAE. 243 



Family 3. CORNACEAE Link. Dogwood Family. 



Flowers perfect, 4-parted; ovary 2-celled. 1. Cornus, 



Flowers polygamous or dioecious; petals minute or none. 2. Nyssa. 



1. CORNUS L. 



Flowers capitate, with au involucre of 4-6 large white bracts. 



Low herbaceous shrubs; rootstocks slender. 1. C. Canadensis. 



Tree or large shrub; flowers greenish-yellow. 2. C. florida. 



Flowers cymose, white, not involucrate. 

 Leaves opposite. 



Leaves downy-pubescent beneath, at least when young. 



Leaves broadly ovate or orbicular. 3. C. circiiuita. 



Leaves ovate or ovate-lanceolate. 4. C. Amomum. 



Leaves glabrate, or minutely pubescent beneath. 



Leaves ovate, short-pointed ; twigs purple. 5. C. stolonifera. 

 Leaves ovate-lanceolate, acuminate. 6. C. candidissima. 



Leaves alternate, clustered at the ends of the flowering branches. 



7. C. alternifolia. 



1. CORNUS Canadensis L. Dwarf Cornel, Bunch-berry. M. p. 689. Low 



woods. Early summer. 

 Leftz^h— Salisbury (Kr.). Nortlmmpton— Pen Argyl (Li.). 



2. CoRNUS FLORIDA L. Flowcring Dogwood. M. p. 690. Woods. Spring. 



3. CoRNUS CIRCINATA L 'Her. M. p. 690. Shady, often rocky, situations. 



Spring. 



Philadelphia— Shawmont (Ba,.) . Bucfcs— Rock Hill (Fr.). Delaware— 

 Lansdowne (Pe.), Swarthmore (Ws.). Lancaster— {P.). Berks— Mount 

 Penn, Reading (Wn.). Northnmpton — Pen Argyl (.la.) (Li.), Wind 

 Gap (Li.). 



Hunterdon— Bjram (C). 



4. OORNUS Amomum Mill. Silky Cornel, Kinnikinnik. M. p. 690. Wet 



places. Early summer. 



5. CoRNUS STOLONIFERA Michx. Eed-osier Dogwood. M. p. 690. Wet 



places. Early summer. 



PhiladelphiaShavimont (Sa.). Delaware— ^a^s. (Ja.), Darby, Laza- 

 retto (Ws.). Lefti^^— Salisbury (Kr.). Northampton — (P.). 



GZowcesier— Mickleton, frequent (He.), Swedesboro (Li.). Salem — 

 Woodstown (Wa.). 



6. CoRNUS CANDIDISSIMA Marsh. M. p. 690. Rich soil. Spring. 



PMadeipftio — Byberry, Mart. (B. C), Franklin Wood (Je.), West 

 Philadelphia (Mac), Schuylkill above Philadelphia (Pr.). Bucks— Near 

 Sellersville (Fr.), Rock Hill (Ja.), New Hope (Sts.), Haycock Mountain 

 (Ws.). Montgomery— Snmnejto-wn (VP.). Delaware— 1<! ear Swarth- 

 more, Dr. Geo. Smith (Fu.), Lansdowne (Pe.), barrens of Middletown (B. 

 Sm.), Chester (W. Tr.). Lancaster— (P.). Lehigh— Salishmj (Kr.). 

 Northampton — (P.) . 



BurHn^foTi — Pemberton (C). Comden— Delanco (C), West Colling- 

 wood (Mar.). Gloucester — SweAesboro (Li.). Salem — Salem (He.). 

 Jl/^erc(?r— Princeton (Te.). 



Nev} Cosfie— Allapokas, Kirkwood, etc. Scarce. 



