REVIEWS AND EXCHANGES 
7 
tubercles of the Leguminosa, are untouched topics which occur to us ; whilst we 
should like to have more explanation as to the two forms of pollen mentioned in 
some species, as to the slightly sensitive stamens of the Common Rock-rose and 
the turquoise-blue seeds ol Imfatiens fulva. As the author speaks of some of the 
flowers of the Grass Vetchling as producing seeds without opening, and adds 
“ they are not true cleistogamic flowers,” he apparently implies some meaning 
in the term “cleistogamic” which is neither in its original etymology nor in his 
own glossary ; and there is no mention of the prevalence of this condition in the 
Trikolium Subterraneum. Old Flower-heads 
BEGINNING TO BURY THEMSELVES. 
Furze Seedling. 
(From “ Notes on the Life History of British Flowering Plants.”) 
Sundew. We should also like more bibliographical references, but lest these 
requests should be mistaken for fault-finding, we hasten to conclude with a 
quotation showing the intensely interesting character of the work. “ On the 
under side of the leaves (of the Lime), at the base where the nerves diverge, are 
more or less triangular spaces, enclosed by the under side of the leaf, the walls of 
the nerves, and a fringe of long hairs. Attention to these was first called by 
Lundstrom, who regards them as abodes — ‘ domatia ’ — for mites. That they are 
not pathogenic, he proved by growing seedlings and carefully keeping mites away. 
This was, however, no easy matter, for the mites lay their eggs in the fruit, in 
which, indeed, there is, he considers, a special cavity prepared for the purpose. 
In this way the mites develop pari passu with the young plant. During the day 
the mites remain at home in the domatia, but at night, and sometimes during dull 
