ROSACEAE, 93 
2. Leaves pinnate throughout. 3. 
Upper part of leaves not pinnate. x S. hybrida. 
3. Buds silky, not glutinous. S. Aucuparia. 
Buds very glutinous. S. americana. 
CHAENOMELES, Japanese Quince. 
Deciduous firm-leaved shrubs, with typically axillary spines; 
with roundish rather slender twigs; irregular rounded homogen- 
eous 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 exposed scales; 
crenulate to serrate moderate-sized short-stalked leaves; rather 
large solitary deep red to pure white perfect epigynous poly- 
petalous 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. 
CypoNniIA. 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 moderately large 
leaves; rather large perfect epigynous polypetalous whitish 
flowers solitary at ends of the branches; and large firm aro- 
matic pomes, 
1. Leaves not variegated. 2. 
Leaves mottled. C. oblonga marmorata. 
2. Round- topped. (Common quince). C. oblonga. 
Conical. C. oblonga pyramidalis. 
PHOTINIA. 
Deciduous shrubs with hard wood with minute diffused 
ducts and fine medullary rays; rather slender roundish twigs; 
