8 NATL. ARBORETUM CONTRIB. NO. 3, U.S. DEPT. AGR. 



Similar problems exist for the delineation of the /. opaca, known in 

 the wild as f. subintegra Weatherby, having entire-margined leaves. 4 This 

 botanical form, said to occur throughout the entire range of the species, 

 includes plants with entire-margined leaves. Some cultivars assigned to 

 /. X attenuata have entire-margined leaves; however, the definition of 

 f. subintegra, as contrasted to that of /. X attenuata, is inadequate to 

 elucidate the true biological situation. Possibly much of what is referred 

 to as f. subintegra actually represents the hybrid /. X attenuata. The 

 reverse may also be true. Cultivar names are not assigned to f. subintegra 

 unless specifically mentioned by published references; however, the regis- 

 tration authority reserves the right to reverse the status and position of 

 cultivars. 



4 Dudley, T. R., and Eisenbeiss, G. K. handbook of hollies, Amer. Hort. Mag. 

 49(4) : 317. 1970. 



