CORN ACE AE. 263 



rasawa, 272, pi. 10, 11. C. racemosa (C. candidissima; C. 

 paniculata) . Brendel, pi. 1. C. sanguined. Bosemann, 58; 

 Fant, 44, f. 46; Schneider, f. 194; Ward, 1:170, f. 83; Will- 

 komm, 9, 50, f. 91; Zuccarini, 22, pi. 12. 



1. Leaf -scars alternate: arborescent. C. alternifolia. 

 Leaf-scars opposite. 2. 



2. Leaf-scars raised through the first winter and covering the 



buds: flower-buds biscuit-shaped: arborescent. 3. 

 Buds not concealed, even if the leaf-scars are elevated. 4. 



3. Leaf-axils brown-hairy. C. Kousa. 

 Leaf-axils not brown-hairy. ( Flowering d. ) . ( 1 ) . C. florida. 



4. Flower-buds enlarged, subglobose. 5. 

 Flower-buds not enlarged. 6. 



5. Lateral buds very divergent. 



(Cornelian cherry). (2). C. mas. 

 Lateral buds suberect. C. officinalis. 



6. Branching divaricately twiggy: somewhat silky. 7. 

 Branching loose and osier-like. 8. 



7. Twigs olive-gray. (Panicled dogwood). (3). C. racemosa. 

 Twigs reddish or purplish. 



(Rough-leaved dogwood). C. asperifolia. 



8. Twigs bright yellow in winter. C. alba flaviramea. 

 Twigs very bright red. (4). C. alba sibirica. 

 Twigs black-purple, not rooting. C. alba Kesselringii. 

 Twigs purple, rooting at tip. (Red osier). C. stolonifera. 

 Twigs green, becoming pink or purple: not stoloniferous. 9. 



9. Buds long-stalked or developing the first year. C. alba. 

 Buds nearly sessile. 10. 



10. Twigs and buds glabrate. C. femina. 

 More or less pubescent. 11. 



11. Pubescence woolly. (Kinnikinnik). C. Amomum. 

 Pubescence closely appressed. 12. 



12. Buds hairy only at tip: twigs rather pink: (5). C. rugosa. 

 Buds hairy throughout: twigs often green. 



(6). C. sanguinea. 



