70 THE BOOK OF CLIMBING PLANTS 



without admiration. The latter is rather difficult to 

 propagate. 



Convolvuluses require the same treatment as the 

 Ipomaeas. C. mauritanicus is generally cultivated in 

 baskets. 



Where there are large houses the Passifloras, or 

 Passion Flowers, ought always to be represented among 

 the climbing plants cultivated. They are best suited for 

 the rafters or roofs, where their free growing habit can 

 be allowed some scope, and their true character dis- 

 played. The flowers are very ornamental, apart from 

 the fancied resemblance the parts bear to the cross 

 which has given rise to the name of "Passion Flower" 

 and several produce handsome edible fruit. They 

 are best planted out in the house in a border with 

 about ten inches of soil, but they may also be placed 

 in large pots or tubs in good turfy loam, with a little 

 sand and peat or leaf-soil, a similar compost answering 

 for those planted out. They are generally propagated 

 by cuttings of the young growths with a heel, and 

 about six inches or so in length, put in pots of sandy 

 soil under a bell-glass or in a propagating frame. The 

 necessary training is effected by stopping the leading 

 shoots to secure others to cover the space desired, 

 thinning out superfluous growths, and by regulating 

 the direction the remainder are to take. The common 

 Passion Flower, P. caerulea, does well in a cold house, 

 where it is too cold for it in the open, but the greater 

 number of those named in the table require stove or 

 greenhouse treatment. There are so many in cultiva- 

 tion that only a selection can be named there. 



The allied Tacsonias, which differ little in their 

 botanical characters from the Passifloras, and share with 

 them the popular name of Passion Flower, are equally 

 beautiful, and they give many exquisite and showy 

 flowers. As they are cultivated in the same way as 



