MALACEAE. 



31 



I. CORDATAE. 



Leaf-blades broadly ovate, cordate, truncate or abruptly contracted at the base. 



1. C. apiifolia. 



Leaf-blades spatulate or oblanceolate, narrowed or cuneate 

 at the base. 



II. AESTIVALES. 



Shoots, petioles, and lower surfaces of the leaf-blades rufous- 



tomentose. 

 Shoots, petioles, and leaves glabrous or nearly so. 



Leaf-blades with abruptly contracted bases. 



Leaf-blades with cuneate or narrowed bases. 



III. VIRIDES. 



Leaf-blades coarsely and Irregularly serrate, often with blunt 



or acute shallow lobes. 

 Leaf-blades ample, 2-4 cm. wide. 

 Leaf-blades (exclusive of those on the shoots) 1-2 cm. 



wide : twigs very spiny. 

 Leaf-blades all sharply serrate and incisely lobed. 



IV. SARGENTIANAE. 



Mature fruit yellow, orange-yellow, or green sometimes 

 checked with red : anthers dark-purple : leaf-blades not 



conspicuously elongate. 



2. C. spathulata. 



3. C. aestivalis. 



4. C. maleoides. 



5. C. luculenta. 



6. C. viridis. 



7. C. paludosa. 



8. C. subviridis. 



9. C. contrita. 



V. PULCHERRIMAE. 



10. C. pulcherrima. 



11. C. abstrusa. 



Fruit oval at maturity, the flesh attenuate with the pedicels. 

 Fruit 6-8 mm. long. 

 Fruit 10-12 mm. long. 

 Fruit globose or nearly so, the flesh not attenuate with the 



pedicel. 

 Leaves more than 2 cm. wide. 



Leaf-borders with round, usually sharp-pointed, lobes. 12. C. assimttis. 

 Leaf-borders with acute lobes. 13. C. robur. 



Leaves (exclusive of those on the shoots) mostly less 



than 2 cm. wide. 14. C. concinna. 



VI. SORORIAE. 



Anthers yellow, white, or cream-color. 



Fruit yellow and red, or orange-red with ruddy cheeks. 

 Fruit deep- or bright-red. 



Pedicels short, pubescent, at least in anthesis. 

 Pedicels 1 cm. or more long, white-tomentose. 

 Anthers purple or purplish. 



15. C. galbana. 



16. C. abdita. 



17. O. consanguinec 



VII. VISENDAE. 



Fruit pyriform, yellow or orange-yellow, often flushed or 



cheeked with red. 18. C. visenda. 



Fruit subglobose or oval. 



Leaf-blades with large blunt or rounded lobes. 19. C. egregia. 



Leaf-blades with numerous small, tooth-like lobes. 



Anthers pink or pale-purple : inflorescence pubescent. 20. C. quaesita. 

 Anthers white : inflorescence densely white woolly. 21. C. egens. 



VIII. INTEGRAE. 

 Fruit red. 



Anthers light-yellow : calyx deciduous. 22. C. Integra. 



Anthers pale-purple : calyx persistent. 23. C. adunca. 



Fruit yellow, orange, or orange-red, the cheeks often flushed. 



Pubescence of the corymbs copious but thin. 24. C. panda. 



Pubescence of the corymbs densely white-woolly. 



Vernal leaves bright-green : pedicels at maturity 1 



cm. long or more. 25. C. dapsilis. 



Vernal leaves gray-green: pedicels very short. 26. C. rava. 



IX. DENTATAE. 



Fruit red at maturity. 27. C. compitalis. 



Fruit yellow, orange or orange-red, the cheeks often red. 



Pedicels clothed with white spreading hairs : flowers 



2-2.5 cm. wide. 28. C. clara. 



Pedicels white-woolly. 29. C. arnica. 



