CRATAEGUS IN MISSOURL 115 



Leaves thin, with midribs and veins only slightly impressed on their 

 upper surface. 



Anthers rose color (pink in No. 2). 

 Stamens 20, 



Fruit obovate ; flowers in wide many-flowered corymbs. 



Fruit up to 1 cm. in length, dull orange-red; leaves 

 ovate to oblong; branchlets ashy gray, usually 

 unarmed or with occasional small gray spines. 



1, C, tomentosa. 

 Fruit not more than 8 mm, in diameter; leaves broadly 

 ovate to broadly oval, branchlets light chestnut- 

 brown and lustrous, armed with numerous long 



purple spines; anthers pink. 



Fruit 



2, C, hispidula. 



in length; flowers in compact mostly 3-8-flowered 

 corymbs; leaves ovate to obovate. 



3. C. missouriensis. 

 Fruit globose to short-oblong, not more than 8 mm, in 

 diameter; flowers in 12-15-flowered corymbs; leaves 

 slightly obovate to oval or ovate, 4. C globosa. 



Stamens 5-10. 



Fruit obovate, 7-8 mm. in length; leaves ovate to rhombic; 

 stamens 7-10. 5. C. obscura. 



Fruit 



rers in many-flowered corymbs. 

 Leaves broadly ovate; stamens 10. 



Leaves 



6. C spinulosa. 



7. C mollita. 



5-8-flowered corymbi 



to obovate; stamens 5-10. 8. C, rupicola. 

 Anthers yellow; stamens 10. 



Leaves narrowly obovate to rhombic or ovate; fruit short- 

 oblong, green or yellowish red, 9. C pudens. 



Leaves ovate to oval or ol: 

 oblong, bright orange-red. 



fruit subglobose to short- 



Leaves 



10. C mollicula. 



Stamens 20. 



■ymb 



Leaves broadly ovate to broadly obovate, rather thick; anthers 

 dark red; fruit obovate. 11. C. insperata. 



Le 



color. 



12. C ens if era. 



Stamens 10; anthers yellow; leaves ovate to rhombic; fruit sub- 

 globose to short-oblong, 13. C, pertomentosa. 



i 



