58 ROSACEAE 



1. Many leaves compound. 2. 



I/eaves all simple. S. Aria, 



2. Leaves pinnate throughout. 3. 



Upper part of leaves not pinnate. X S. hybrida. 



3. Buds silky, not glutinous. (European). S. Aucuparia. 

 Buds very glutinous. (American). S. americana. 



CHAENOMELES. Japanese Quince. 



Deciduous firm-leaved shrubs, with typically axillary 

 spines; with roundish rather slender twigs; irregular rounded 

 homogeneous pale pith; alternate raised crescent-shaped small 

 leaf -scars with 3 sometimes compound bundle-traces; small 

 stipule-scars; ovoid small solitary sessile buds with about 2 ex- 

 posed scales; crenulate to serrate moderate-sized short-stalked 

 leaves; rather large solitary deep red to pure white perfect 

 epigynous polypetalous flowers; and large fragrant many- 

 seeded orange pomes. Often placed under Cydonia. 



1. Stipules large and leaf-like. 2. 



Stipules small. C. sinensis. 



2. Leaves pubescent when young. C. cathayensis. 

 Leaves glabrous. 3. 



3. Twigs glabrate: leaves sharply serrate. C. japonica. 

 Twigs hairy when young: leaves crenate. C. Maulei. 



CYDONIA. Quince. 



Deciduous shrubs or very small trees with light brown 

 firm wood with minute diffused ducts and fine medullary rays; 

 rounded twigs; small roundish homogeneous pale pith; alter- 

 nate raised crescent-shaped 3-lobed small leaf-scars with 3 

 bundle-traces; no stipule scars; simple entire stalked moder- 

 ately large leaves; rather large perfect epigynous polypetalous 

 whitish flowers solitary at ends of the branches; and large 

 firm aromatic few-seeded pomes. 



1. Leaves not variegated. 2. 



Leaves mottled. C. oblonga marmorata. 



2. Round- topped. (Common quince). C. oblonga. 

 Conical. C. oblonga pyramidalis. 



