358 
Tricotylous Races. 
Hemi-tricotyls and tetracotyls are, as we have al- 
ready stated, as a rule rarer than tricotyls, even when we 
include all the minus and plus variants of these groups. 
This can be observed in bought samples of seed ; but 
better if we sow the seed of plants grown from such a 
sample separately. Thus, for instance, I found in 1892 
among the seeds of a plant of Asperula azurea setosa 
3 hemi-tricotyls, 15 tricotyls and 3 tetracotyls among 
1170 seedlings, and in the crop derived from another 
individual of the same culture 2 hemi-tricotvls and 5 
Fig. 69. Palaver R/wcas. Semi-double cultivated form. 
Dicotylous, hemi-tricotylous, tricotylotis, tetracotylous, 
and pentacotylous seedlings; from the seeds of 1899. 
tricotyls amongst 550 seedlings. Further, I found in 
1892, amongst 13,000 seedlings of Amarantus spcciosns 
202 hemi-tricotyls, 245 tricotyls, and 22 tetracotyls and 
hemi-tetracotyls. In the former group the cleavage was 
shallow in 47 cases, deep in 97 and intermediate in 58. 
The same general result was obtained in other plants. 
To obtain a further knowledge of tricotyls and hemi- 
tricotyls we must cultivate them further, allow them to 
flower separately, and compare the composition of their 
progeny with that of the tricotylous individuals from the 
