ROSA IWARA 
The price of shoots is lo guilders, of plants grafted on wild Roses 
6 guilders^ In an account of Siebold’s garden in the same volume 
the writer says: “The Rosa Iwara raised by us from seed m 1832 
has withstood the winter in the open air for more than ten 3Tars ; it 
is now a shrub some six feet high, and is the first in our garden to 
produce its leaves and the last to lose them.”^ The list is quoted in 
\\\^ ReviLe Horticole, 1845, p. 224. 
Rosa Iwara was described in 1861 by Dr. Regel, and in 1869 
by Koch, who calls it also Rosa Ibara. Crepin’s description was 
based on plants in Prince W^alferdange’s garden in Luxembourg, 
whither they had been sent by Siebold himself in 1849. It is believed 
to have been a spontaneous hybrid between Rosa vmltiflora Thunb., 
from which parent it has its scattered, unequal prickles, protruded 
styles and ciliated stipules, and Rosa rttgosa Thunb., from which it 
has its dull green, shallowly toothed leaflets, few-flowered corymbs and 
globose ovary. It bears clusters of pure white flowers about mid- 
summer, and its distinct character makes a welcome variation from 
other garden Roses. 
1 p. 38. ^ p. 27. 
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