II HISTORY AND CLASSIFICATION 23 
Roses, or covering waste places, the long shoots 
being left unpruned. FF élicité et Perpetué and 
Rampant are perhaps the best known among 
them. 
The Boursault Rose (Hybrids of R. Alpina). This 
is another group of strong-climbing summer Roses, 
with very characteristic smooth wood, not so 
pendulous in habit as the two last named. The 
species is a native of the Alps, thoroughly hardy, 
erowing and blooming anywhere with reddish 
flowers that are often the first Roses of summer. 
The best-known varieties are Amadis or Crimson, 
and Gracilis. 
The Banksian Rose (R. Banksize).—This is a very 
distinct species, said to have been introduced from 
China early in the last century, and named after 
Lady Banks. The plants grow very strongly, but 
are not hardy, and are liable to be killed outright in 
severe frost even on a south wall. There are only 
two varieties worth growing—the Yellow, with very 
small, but full, scentless flowers, produced in great 
abundance in clusters, and the White, with rather 
large flowers, most deliciously and characteristically 
scented, the odour being compared to that of violets. 
The plants, which are nearly evergreen in mild 
winters, should be very little pruned (see page 95) ; 
perhaps the best way is to shorten a little in the 
summer those shoots that have bloomed, cutting 
out all dead wood. 
The Polyantha Rose (R. multiflora)—The older 
varieties of this class, which bloom only once, are 
single. These are—Polyantha simplex, a great 
grower, which has been tested as a stock for Tea 
Roses, but has not proved satisfactory; and P. grandi- 
