108 VINES, HARDY AND TENDER. 



purpose. But by root cuttings a one-year-old specimen may be made 

 the parent ol a hundred or more plants. To give large and healthy 

 roots for this purpose, the plants should be planted out early. By the 

 middle of October the tops are cut off, the roots lifted and put in boxes 

 of sand for a few weeks. In preparing for the root cuttings take a box, 

 in the bottom ot which put some rough screenings, then 2 inches of fine 

 soil made very firm; put the pieces of roots (about three-quarters of an 

 inch in length,) on the surface, then cover with three-quarters of an inch 

 of coarse grained sand and put in a warm house. When the grov?ths 

 have made two pairs of leaves put each growth in a 2-inch pot, shifting 

 into 3-inch pots as they require it. 



M. bicolor is apt to run too much to weedy growth during Summer, 

 especially in the warmer parts of the country. Cuttings of the green 

 wood root quiclsly. Those propagated early in September make nice 

 flowering plants in 4-inch pots for Winter blooming in the cool conser- 

 vatory. 



Pi^DERIA F(ETIDA — Usually grown as a stove and greenhouse 

 climber, but it is hardier than is generally supposed. We have old plants 

 which have stood out in the open border for over 20 years. It is rather 

 an attractive-looking, but not a free-blooming vine. The leaves, or any 

 part of the plant, when bruised, emit a most offensive odor. Cuttings 

 should be put in any time after the growths are matured. 



PASSIFLORA INCARNATA is said to be hardy around Philadelphia. 

 It is one of the most rapid growing species; has large whitish flowers 

 and bears seeds abundantly. 



P. coerulea is apt to get killed to the ground in Winter north of 

 Washington. P. Constance Elliott is a white flowered variety, seem- 

 ingly hardy and more floriterous than the type. P. Imperatrice Eugenie, 

 P. Innesii, P. Lawsoniana and P. Munroi are good hybrids. Stock 

 plants will Winter if planted in a frame, the back of which is formed by 

 the wall of a warm house. These may be propagated from cuttings of 

 ripe growths any time in late Summer. P. alata and P.quadrangularis 

 are stove climbers with large, handsome flowers. P. aucubfefolia, a 

 variety ot the last named, has the foliage handsomely marked with 

 yellowish blotches. 



PETREA VOLUBILIS— A greenhouse climber of very irregular growth, 

 bearing in March and April long racemes of very showy purple flowers. 

 The calyces are only a few shades lighter in color than the corollas. 

 This plant should be in every greenhouse collection. It is very suitable 

 for training up rafters. Cuttings of the dormant wood will root in heat; 

 the best time to do the work is just before the plants start into growth. 



PUERARIA THUNBERGIANA has for several years been distributed 

 throughout the country under the name of Dolichos japonicus. It is a 

 hardy, trifoliate-leaved vine, having inconspicuous purplish pea-shaped 

 flowers, which are seldom produced except on the old wood of well- 

 established plants. The flowers amount to but little, however, inJact, 

 no one would grow the vine on account of the flower display. It is the 



