1 68 CORNACEAE (DOGWOOD FAMILY) 



A. Leaf segments narrowly linear. W. E. Common weed in meadows. 



D. pusillus (WILD CARROT) 

 AA. Leaf segments lanceolate. W. Cultivated for its yellow edible root. 



D. carota (CULTIVATED CARROT) 



CORNACEAE (DOGWOOD FAMILY) 



Herbs or shrubs or trees. Leaves opposite, mostly entire, pinnately 

 veined; stipules none. Flowers in cymes or heads or ament-like 

 clusters. Calyx limb 4~5-toothed or -lobed. Petals none or dis- 

 tinct, 4-5. Stamens 4, alternate with the petals. Ovary inferior, 

 i-2-celled; ovules 1-2 ; styles 1-2. Fruit fleshy, a drupelet or a 

 berry. 



A. Leaves deciduous, herbaceous ; flowers perfect; petals present ; fruit a drupe. 



CORNUS (p. 1 68) 

 AA. Leaves evergreen, coriaceous; flowers dioecious; petals none; fruit a berry. 



GARRYA (p. 168) 

 CORNUS (DOGWOOD) 



Herbs or shrubs or trees. Leaves entire, sometimes apparently whorled. 

 Flowers variously colored, in cymes or heads, often involucrate with large 

 white bracts. Calyx limb minutely 4-toothed. Petals 4. Ovary 2-celled ; 

 style i. Drupe globose to oblong. Seeds 2. (L. cornu = a horn; re- 

 ferring to the hardness of the wood.) 



A. Flowers in loose cymes, white or cream-colored, not involucrate; fruit white or 



blue. 



B. Leaves 5-10 cm. long; calyx teeth prominent. 

 C. Cyme branches hairy; leaves loosely pubescent beneath. W. C. 



C. occidentalis (WESTERN DOGWOOD) 

 CC. Cyme branches glabrous; leaves appressed-pubescent beneath. C. E. 



C. stolonifera (RED-OSIER DOGWOOD) 

 BB. Leaves 2.5-5 cm. long, acute at both ends; calyx teeth minute. U. 



C. glabrata 



AA. Flowers in sessile umbels, yellowish, involucrate; involucre bracts 4, 5-7 mm. 

 long; fruit blue-black; shrub 3-4.5 m. high. U. C. sessilis 



AAA. Flowers in dense heads, greenish, involucrate; involucre bracts 4-6; fruit red. 

 D. Plant 8-20 cm. high, herbaceous; involucre bracts 1-2 cm. long. W. C. E. 



C. canadensis (BUNCHBERRY) 



DD. Plant 10-20 m. high, shrub or tree; involucre bracts 4-8 cm. long. W. C. 



C. nuttallii (FLOWERING DOGWOOD) 



GARRYA (FEVER-BUSH) 



Shrubs ; bark greenish ; branchlets 4-angled. Leaves entire or undulate. 

 Flowers in ament-like clusters ; clusters axillary, pendulous, solitary or in 

 3's between the bracts. Calyx of the sterile flowers 4-parted ; ovary none. 

 Calyx of the fertile flowers shortly 2-lobed or entire ; stamens none ; ovary 

 i-celled; styles 2. Berry blue or purple. Seeds 1-2. (Honor of M. 

 Garry, of the Hudson Bay Company.) 



