Horticultural Varieties Arisen Suddenly. 101 
in the crop thus raised that the plant which bore the 
flower head shown in Fig. 15 appeared. The color was 
dark carmine red, not that of red lead. The flower heads 
were all fistulous from the beginning of June until well 
into October; but the later flowers manifested the ab- 
normality in varying degrees. Either the base only of 
the tube was closed; or only some of the ray florets had 
the form of a tube. The plant had to be left to free 
crossing with its neighbors so that no observations of 
real value as to its constancy could be made. Neverthe- 
less this was pretty considerable, for, from the seeds of 
my fistulosa I raised 43 plants in 1895 of which 25, that 
is to say more than half, had the characters of the new 
variety. 
The origin of Chclidoniuni laciniatum from C. ma/us 
was described in detail in the first volume (p. 189, Figs. 
36 and 37) ; where a series of other cases will also be 
found. VERLOT (loc. tit., p. 34) describes Ageratmn 
cocruleuin nanuin as a novelty which is sometimes sterile, 
but sometimes occurs as a fertile and constant variety. 
Verbena hybrida, "a fleur couronnee" arose about 1889 
from the variety "a fleur d'auricule," it immediately 
proved constant and after only two years was put on the 
market by E. FOURGEOT of Paris. 1 Robinia Pseud-Acacia 
rosea was found by DECAISNE in a crop of ordinary 
Acacias; and Glcditschia sinensis incruiis arose in the 
same way, as also did Sophora japonica pendula which 
appeared in M. JOLY'S nursery garden in Paris about 
1S00. 2 In 1860 a new strawberry "Rcus van Zuidwyk" 
appeared in Boskoop. Its leaves and fruits were larger 
1 See his Catalogue for 1891. 
2 VERLOT, loc. cit., pp. 59, 92, 93. 
