234 CORNACEAE 



1. CORNUS L. 



Flowers in heads subtended by corolla-like involucres of 4-6 white or whitish 

 bracts. 

 Low herbaceous shrubs : fruit globular : bracts of the involucre pointed. 



1. C. Canadensis. 

 Tree or woody shrub : fruit oval : bracts of the involucre notched. 



2. C.florida. 

 Flowers in open corymb-like cymes, not involucrate. 



Leaves "opposite, remote. 

 Leaf -blades copiously pubescent beneath, at least when young. 



Leaf-blades orbicular or ovate-orbicular. 3. C. circinata. 



^^j^af-blades ovate or ovate-lanceolate. 



Fruit blue. 4. C. Amomum. 



Fruit white. 5. C. Baileyi. 



Leaf-blades glabrous or nearly so beneath. 

 Twigs purple : leaf-blades ovate, abruptly pointed. 6. C. stolonifera. 

 Twigs gray : leaf-blades ovate-lanceolate, acuminate. 



7. C. candidissima. 

 Leaves alternate, approximate at the end of the branches. 



8. C. alternifolia. 



1. Comus Canadensis L. Low or Dwarf Cornel. Bunch-berry. 

 (Man. p. 689 ; I. F. f. 2J10.) In low woods, Newfoundland to Alaska, 

 N. J., Ind., Minn., Colo, and Calif. — Pennsylvania: Pike; Monroe; 

 Schuylkill ; Carbon ; Tioga ; Sullivan ; Centre ; Mifflin ; 

 Huntingdon ; Erie ; Somerset. 



2. Comus florida L. Flowering Dogwood. (Man. p. 690 ; I. F./. 

 2712.) In woods, Me. and Ont. to Fla., Ky., Mo. and Tq-ks— Pennsyl- 

 vania : Monroe ; Northampton ; Bucks ; Philadelphia ; Dela- 

 ware ; Chester ; Lancaster ; Franklin ; Huntingdon ; Alle- 

 gheny. 



3. Comus circinata L'Her. Round-leaved Cornel or Dogwood. 

 (Man. p. 690; I. F. /. 2//j.) In shady, often rocky situations, N. S. 

 to Man., Va., 111. and Iowa. — Pennsylvania : Bucks ; Schuylkill ; 

 Luzerne ; Lancaster ; Huntingdon ; Erie. 



4. Comus Amomum Mill. Kinnikinnik. (Man. p. 690 ; I. F. /. 

 27/4.) In wet soil, N. B. to Out., Fla., S. Dak. and Tex.— Pennsylva- 

 nia : Northampton ; Bucks ; Delaware ; Chester ; Lancaster ; 

 York ; Franklin ; Perry ; Cr-\wford ; Somerset ; Susquehanna ; 

 Allegheny. 



5. Comus Baileyi Coult. & Evans. Bailey's Cornel or Dogwood. 

 (Man, p. 690; I. F. /. 27/6.) Lake shores and in moist ground. Pa. to 

 Minn, and the N. W. Terr., Wyo. and ISieh.— Pennsylvania : ERIE; 

 Presque Isle. 



6. Comus stolonifera Michx. Red-osier Cornel or Dogwood. 

 (Man. p. 690; I. F. /. ^7I7.) In moist soil, N. S. to Yukon Terr., Va., 

 Ky., Neb., Ariz, and Calif. — Pennsylvania : Northampton; Centre; 

 Crawford ; Erie ; Allegheny. 



