CORNUS 371 



A genus of about 25 species, natives of the North Temperate zone, 

 Mexico and Peru. In addition to the following 11 others occur in North 

 America. 



Key to the Species 



1. Leaves opposite 



a. Fruit light blue, leaves downy pubescent be- 



neath at least when young 



( 1 ) Twigs green, leaves broadly ovate or 



orbicular, . C. circinaia 



(2) Young twigs silky-downy, leaves ovate 



or elliptical C. Amomum 



b. Fruit white, leaves glabrous or pubescent 



( 1 ) Twigs gray, leaves ovate-lanceolate C. paniculata 



(2) Branches bright red, purple or brownish 



(a) Branches brownish, spreading — pubes- 



cent leaves spreading — pubescent be- 

 neath C. Baileyi 



(b) Branches bright red-purple, smooth, 



minute-pubescent on both sides C. stolonifera 



2. Leaves alternate, clustered at the ends of the 



flowering shoots C. alter ni folia 



Cornus circinata L'lleritier 17S8 Round-leaved Dogwood 



A shrub 1-3 m. high, branches green, warty-dotted; leaves broadly 

 ovate or orbicular, rounded at the base, abruptly pointed at the apex, with 

 scattered pubescence above, paler and woolly-pubescent beneath, 8-14 cm. 

 long, 6-13 cm. wide, petioles 1.5-2 cm. long; flowers in many-flowered 

 cymes, white, 5-7 mm. broad, petals oblong, pedicels pubescent; fruit 

 globose, light blue, about 5 mm. in diameter, stone subglobose, slightly 

 ridged : circinata, rolled into a coil. 



In sandy or rocky soil, in woods and thickets, frequent and occasion- 

 ally common throughout the state. From Nova Scotia to Manitoba, south 

 to Va., 111. and la. Flowers in June, fruit ripe in August. 



Cornus Amomum Miller 1768 Silky Cornel Kinnikinnik 



A shrub 1-3 m. high, twigs brownish or purplish, the younger ones 

 silky-downy ; leaves ovate, oval or ovate-lanceolate, narrowed or rounded 

 at the base, acuminate at the apex, glabrous or thinly appressed-pubescent 

 above, finely pubescent, usually with brownish hairs beneath, 4-8 cm. long, 

 2.5-4.5 cm. wide; flowers in flat, many-flowered cymes, white, 8-9 mm. 



