106 BUD-VARIATION. Chap XL 



changes to the influence of the stock; but from the facts already 

 given, and from others to be given, bud-variation, with reversion, 

 is probably a sufficient explanation. 



Many other instances could be added of roses varying by buds. 

 The white Provence rose apparently originated in this way. 46 M. 

 Carriere states (p. 36) that he himself knows of five varieties thus 

 produced by the Baronne Prevost. The double and highly-coloured 

 Belladonna rose has produced by suckers both semi-double and 

 almost single white roses ; 47 whilst suckers from one of these semi- 

 double white roses reverted to perfectly characterised Belladonnas. 

 In St. Domingo, varieties of the China rose propagated by cuttings 

 often revert after a year or two into the old China rose. 48 Many 

 cases have been recorded of roses suddenly becoming striped or 

 changing their character by segments : some plants of the Comtesse 

 de Chabrillant, which is properly rose-coloured, were exhibited in 

 L862, 49 with crimson flakes on a rose ground. I have seen the 

 Beauty of Billiard with a quarter and with half the flower almost 

 white. The Austrian bramble (R. lutea) not rarely 50 produces 

 branches with pure yellow flowers; and Prof. Henslow has seen 

 exactly half the flower of a pure yellow, and I have seen narrow 

 yellow streaks on a single petal, of which the rest was of the usual 

 copper colour. 



The following cases are highly remarkable. Mr. Elvers, as I am 

 informed by him, possessed a new Fivnch rose with delicate smooth 

 shoots, pale glaucous-green leaves, and semi-double pale flesh-coloured 

 flowers striped with dark red ; and on branches thus characterised 

 there suddenly appeared in more than one instance, the famous old 

 rose called the Baronne Prevost, with its stout thorny shoots, and 

 immense, uniformly and richly coloured double flowers ; -so that in 

 this case the shoots, leaves, and flowers, all at once changed their 

 character by bud-variation. According to M. Yerlot, 51 a variety 

 called Rom ^annabifoba, which has peculiarly shaped leaflets, and 

 differs from every member of the family in the leaves being opposite 

 instead of alternate, suddenly appeared on a plant of R. alba in the 

 gardens of the Luxembourg. Lastly, " a running shoot " was observed 

 by Mr. H. Curtis 62 on the old Aimee Vibert Noisette, and he budded it 

 on Celine; thus a climbing Aimee Yibert was first produced and 

 afterwards propagated. 



Dianthus. — It is quite common with the Sweet William (7). 

 barbatus) to see differently coloured flowers on the same root; and 1 

 have observed on the same truss four differently coloured and 

 shaded flowers. Carnations and pinks (D. caryophyllus, &c.) occa- 



46 < Gard. Chron.,' 1852, p. 759. 50 Hopkirk's ' Flora Anomala,' 167. 



47 ' Transact. Hort. Soc.,' vol. ii. p. 51 ' !Sur ia Production et la Fixation 

 242 lies Vai\etes,' 1865, p. 4. 



48 Sir R. Schomburgk, ' Proc. 52 'Journal of Horticulture,' March, 

 Linn. Soc. Bot.,' vol. ii. p. 132. 1865, p. 233. 



49 'Gard. Cnron.,' 1862. p. 619. 



