162 NOTES ON THE BELGIAN FLORA. [/^/We, 



Alyssum calycinum. Comrnon in dry, waste places. Border of 

 a field leading to Poil-vache, etc. 



Anemone ?'anunculoides. Fond"^ de LefFe, near Dinant. 



Aquilegia vulgaris. Frequent on the limestone rocks"^ growing 

 in little families, and very attractive from the bright purple 

 colour of the flowers. 



^Arabis arenosa. One of our commonest rock-plants, so abun- 

 dant in some places as to cover the ground, like a rose- 

 coloured carpet. Tt flourishes also on the ruins of Poil- 

 vache, jMontaigle, etc. 



^Asclepias vincetoxicum. Very abundant on the limestone in 

 the provinces of Namur and Liege. 



Atropa Belladonna. On rocky hillsides. I have foiand it very 

 luxuriant on the shale in the valley of the Bocq, a small 

 stream which falls into the Meuse three miles below 

 Dinant. 



Bark- or Borck-hausia taraxacifolia. Dry, sunny banks. By 

 no means so abundant as B. fcetida. 



^Campanula persioBfolia. Common on the limestone rocks along 

 the Meuse, the Ourthe, Visdre, etc., and conspicuous from 

 its large flowers. 



^Corydalis bulbosa. In a sheltered dell, called the Fond de 

 Bivaux, between the villages of Honx and Dinant. 



^Cornus puis. Forms part of the brushwood throughout the 

 province. 



^Crassula rubens. Was abundant on the limestone for several 

 summers, in company with Sedum rupestre and its variety, 

 /S. elegans, but the last two years I have looked in vain for 

 it. The heat and drought were, I suppose, unfavourable to 

 its development. 



^Dianthus Carthusianorum. A very common rock-plant, enli- 

 vening the sober grey limestone with its bright red flowers, 

 throughout the spring and summer. 



Digitalis lutea. Valley of the Lesse, near Dinant. 



TLupliorbia Cyparissias. Buins of Poil-vache. 



Euphorbia stricta {micrantha of Bieb.) . Fond de Bivaux : same 

 locality as Corydalls bulbosa. 



"^Globularia vulgaris. Common on the rocks ; flowering early. 



* In this part of the country the small vaUeys are all designated by the term 

 fond, as the Fond de Leffe, Fond de Riraux, etc. 



