506 The Inconstancy of Fasciated Races. 
been described and figured by CASPARY and therefore 
appear to be fairly abundant in this species. 1 
In perennial weeds fasciations also occur freely, and 
here we may often observe that the phenomenon is re- 
peated more or less regularly in successive years on the 
same specimens or groups of specimens. For instance, 
we have in the botanical gardens at Amsterdam a plant 
of Sonchus palustrls on which I first observed a splendid 
tall broadened stem in 1890. 
Since then the plant has pro- 
duced almost every year one 
or several such structures, 
sometimes 2 meters in height, 
sometimes not more than 1 
meter,and attaining a breadth 
of 6 centimeters by a thick- 
ness of 1. These stems are 
cylindrical at the level of the 
ground, but flatten out grad- 
ually upwards. 
Similar instances were 
afforded by Aconitum Xa- 
mf 
pellns, and Helianthus tnbc- 
rosns (Fig. 113) in our gar- 
Fig. 114. Plantago lanceolata. 
Ears which have split one, 
two or three times. Cultures 
of 1894 and 1895. 
den, by Justitia snpcrba in 
the greenhouse, and byAgri~ 
nionia Eupatorium and Chrysanthemum Leucanthemwn 
in the field. I frequently observed fasciations in annual 
and biennial species, and usually in the course of several 
years in the same locality; for instance in Raphanus 
1 R. CASPARY, Eine gebdnderte Wurzel von Spiraea sorbifolia L., 
Schriften d. Physik. Oec. Ges. Konigsberg, 1878, XIX, p. 149, Plate 
IV. As a matter of fact, however, it was not a root ; see PEXZIG, 
Tcratologie, I, p. 421. 
