THE FLOEAL WORLD AND GARDEN GUIDE. 7 



ferns, such as Jllosonis crispus, Aspleniiun onda muraria, and 

 others that ought to have thriven on the face of the bastion, have 

 perished, which I attribute to their being dried up during long 

 continued hot weather, when, probably, regular watering would have 

 saved them. But I imagine it of the utmost importance to render 

 this brief description u:r:eful, that I should present as complete a list 

 as possible of the plants that have succeeded, and that are really 

 worth the attention of persons possessing similar structures, or desir- 

 ing to form collections of plants. 



TEEES AND SHEIBS. 



Bhus cotinus. — This very distinct and beautiful shrub has a fine 

 appearance on a bank when smothered with its brown smoke or 

 foam-like flowers. It should be found in every belt of mixed shrubs. 



Artemisia arcjentea, A. glacial is, A. maritima, A. siberica, A. vul- 

 garis. — All the species of wormwoods are more or less glaucous or 

 silvery. The first named of these forms an elegant tree, and, as it 

 needs but little soil, is well adapted for the top of a wall, or any 

 other elevated position. 



Heclera Algeriensis, H, Begneriensis, H. Canariensisfol. var., H. 

 digitata, H. chri/socarjia, and H. helix elegantissima, are the most 

 striking half dozen varieties of ivy to train over ruins ; but there are 

 at least fifty more varieties of ivy worthy of places in rockeries and 

 ruins. When planted so as to form distinct sheets of verdure they 

 are much more eff"ective than when allowed to riot over the walls 

 and arches. But in some parts of a ruin a luxurious growth of ivy is 

 desirable ; it is the one plant in all the world that can best crown a 

 buttress with befitting glory. Common Irish and common English 

 are the t^^o best sorts wherewith to form extensive sheets and bold 

 bosses where there is plenty of room for them. 



Lonicera hrar.hypoda reticidaia. — This charming honeysuckle is 

 well adapted to train over rough walls, but it will not train itself as 

 ivy does, and the best way to help it is to place stout galvanized iron 

 wire where the creeper is required and it will twine round it. When 

 it reaches the summit of a rum and falls over in trailing wreaths, it 

 flowers freely, but, like ivy, is reluctant to flower while it has oppor- 

 tunities for extending itself. 



Jasminum nudiflorum. — An old plant of this jasmine clothing a 

 wall or scrambling over a rocky ledge is a fine object in winter when 

 it is covered with yellow flowers, 



Uosmariiius officinalis fol. var., Ruta graveolens fol. var., Santolina 

 rosmarini folia. — Here are three British plants that are admirably 

 adapted tor planting high up on exposed dry ledges and other places 

 where moisture-loving shrubs would soon perish. On the summit 

 of the bastion these are both ornamental and interesting. 



Vitis hederacea fol. var. — This exquisitely beautiful vine was 

 planted in a pocket about five feet from the ground, and it grew 

 freely and made long pendant garlands, which were full of grace and 

 beauty ; the stems reddish and the leaves prettily mottled green and 

 grey. 



Clematis lanuginosa^ G. ccerulea^ C. Florida^ C. vitalba. — There is 



