ENUMERATION OF THE SPECIES 



SPONTANEOUS HYBRIDS 



No spontaneous Azalea hybrids have been as yet recorded, but I 

 have before me several specimens which may possibly be of hybrid 

 origin. There are some specimens collected by Professor C. S. Sar- 

 gent near Bath, Georgia, on April 29, 1914, which appear interme- 

 diate between R. canescens and R. speciosum. They differ from the 

 former in the red flowers with shorter more dilated corolla-tube desti- 

 tute of glands and with larger limb and from R. speciosum in their 

 smaller flowers, more densely pubescent leaves and more or less pubes- 

 cent winter-buds. As the two supposed parent species have been 

 collected at the same locality, and flower at about the same time, the 

 occurrence of such a hybrid is not improbable. Possibly of the same 

 origin is T. G. Harbison's No. 900 from Stone Mountain, De Kalb 

 County, April 29, 1912; it much resembles R. speciosum, but the flow- 

 ers are apparently of much lighter color and the winter-buds are 

 pubescent; both supposed parent species occur in the region. 



On the Nantahala Mountains, Macon County, North Carolina, 

 T. G. Harbison collected a specimen (No. 186; June 7, 1919) similar 

 to R. calendulaceum but with narrower and longer corolla-tube and 

 pink flowers; it may possibly be a hybrid between R. calendulaceum 

 and R. nudiflorum, but I am not aware whether the latter species is 

 found in that particular locality, though it occurs in Macon County. 

 On the Chilhowee Mountain, Tennessee, A. H. Curtiss collected an 

 Azalea (No. 1719) which resembles closely R. arbor escens, but has 

 pubescent branchlets; whether this is a hybrid possibly with R. vis- 

 cosum, I am not prepared to say. 



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