498 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



Perpetual produced by Ducher in 1867, and remarkable for its large 

 flowers, which are double, bright red, and of a globular shape. 



The parents being thus known, now let us study the offspring. I have 

 already said that they are two in number, the one single, the other double. 

 The following are the descriptions of them as given in the Report of the 

 Meeting on May 15, where they were both shown. 



The single variety : — A very vigorous-growing bush with spreading 

 branches, but more erect than in the lutea type ; wood red-brown, furnished 

 with thorns more in number but less projecting than those of the type. 

 Leaves composed of lanceolate leaflets finely serrated like those of the 

 1 Persian Y T ellow,' from which it differs by the colour being deeper and the 

 shape less round, flowering in a bunch or corymb of from two to five 

 flowers ; bud oval ; flower composed of two rows of petals of medium size, 

 coloured yellowish underneath and carmine pink above ; the base of the 

 petals is much coloured with yellow and bleaches altogether when entirely 

 expanded, forming a star in the centre of the flower. The reproductive 

 organs, the pistils and stamens, are perfectly formed ; nevertheless, so far, 

 all the seeds have proved sterile as in B. punicea. 



The double variety : — This flowered for the first time in 1894. It is a 

 most valuable variety from a horticultural point of view. 



The bush, less vigorous than the former, has a growth and habit 

 reminding one of a Hybrid Perpetual. Its branches are erect, armed with 

 thorns rather like those of B. punicea, but more numerous ; leaves 

 rounded, somewhat resembling those of the hybrid perpetual Roses. 



Flowers solitary, large, globular, very double, of a fine golden yellow, 

 shaded with apricot-pink in the centre, which colouring distinguishes it 

 from "Persian Y T ellow." 



One peculiarity al >ne suffices t ) show the hybrid origin of this variety : 

 the flowers have a very pronounced odour of the Ccntifolia Roses, whilst 

 that of B. punicea is disagreeable. 



These two Roses suggest the following remarks : — 



1. The influence exercised by the pollen of Bosa lutea on 1 Antoine 

 Ducher ' is very remarkable. The influence shows that the pollen-parent 

 in this instance has almost obliterated the characteristics of the seed- 

 parent, the two hybrids in question having preserved most of the salient 

 features of the YelL,w Rose, B. lutea. 



2. One notices in the single-flowering hybrid the introduction of a 

 coloured star in the centre of the fl wer. A like star is also found in 

 Hardy's Rose, which, we know, is a cross between a yellow Rose and one 

 of another species — Bona berbcrifolia x clinophylla. 



3. In the case of the double Rose, the unpleasant scent of the 1 Yellow 

 Rose ' has disappeared and has changed to the sweet smell of the 

 Centifolii Roses, or of some of the Hybrid Perpetuals. 



4. Compare with this the result of a cross made by myself with 

 different species. Bosa pomij 'era crossed with the pollen of the Common 

 Bengal R se. The resulting plants have all been alike and have 

 resembled throughout the seed-bearing parent. It is exactly the reverse 

 of what happened in the case of the hybrid obtained by M. Pernet the 

 younger. 



5. From the foregoing remarks we may conclude that in the same 



