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40 



MISSOURI BOTANICAL GARDEN. 



Leaves oblong-obovatc, acute and short-pointed 

 at the apex; anthers pink; fruit short-oblong to 

 ovate. 



Flowers in mostly 10-14-flowered corymbs; 

 calyx-lobes villose on the inner surface; 



styles 2; fruit dull yellow, with an orange- 

 red cheek; spines slender, usually straight. 



3. C. injesta. 

 Flowers in mostly 7-10-flowered corymbs; 



calyx-lobes glabrous; style generally 1 ; 

 fruit bright orange-red blotched wuth green; 

 spines stout, usually strongly hooked. 



4. (7. hamata. 

 Leaves oblong-obovate, acuminate, with prominent 



mid-ribs and veins; flowers in many-flowered 



corymbs; anthers pale salmon color; fruit sub- 



globose, dark red flushed with green. 5. C severa. 



Leaves obovate, usually acuminate or rounded at 



the apex; flowers in 15-20-flowered corjTnbs; 



stamens 5-10; anthers pale salmon color; fruit 



short-oblong, dull red blotched with green. 



6. C. tardiflora. 

 Leaves oblong-obovate to oval. 



Leaves coarsely serrate; flowers in many- 

 flowered corymbs; pedicels slightly hairy 

 while young; anthers dark rose color; fruit 

 short-oblong to subglobose, orange-red. ■ 



7. C. fecunda. 



Leaves flncly serrate; flowers in 4-7- flowered 



corymbs; pedicels glabrous; anthers pink; 



fruit oval to ovate^ dull green, with a reddish 



chcrlc. 



8. C. tenuis. 



Leaves oval to rhombic; flowers in mostly 10-12- 

 flowered corymbs; anthers rose color; fruit sub- 

 globose to short-oblong, dull red. 9. C. iantula. 

 Anthers yellow. 



Leaves oblong-obovate, rounded or acute at the apex. 

 Flowers in 15-25-flowercd corymbs; fruit sub- 

 globose to obovate. 10. C. harrettiana. 

 Flowers in mostly 7-12-flowered corymbs. 

 Primary veins mostly within the parcn- 

 ch>ina. 



Calyx-lobes villose on the inner sur- 

 face; fruit broader than high, trun- . 

 cate at the ends, slightly angled, 

 dark crimson; spines stout. 



11. C efferta. 



