THE ORNAMENTAL PLANTS — CLIMBERS 309 



add the best of them to his collection. Most of these natives 

 are worthy of cultivation. Even the poison ivy makes a very 

 satisfactory cover for rough and inaccessible places in the wild, 

 and its autumn color is very attractive; but of course its culti- 

 vation cannot be recommended. 



Vines that cling closely to walls of buildings are Virginia 

 creeper (one form does not cling well), Boston or Japanese ivy 

 (Ampelopsis tricuspidata; also A. Lowii, with smaller foliage), 

 English ivy, euonymus {E. radicans and the var. variegata), and 

 Ficus repens far south; others that cling less closely are 

 trumpet creeper, and climbing hydrangea (Schizophragma hy- 

 drangeoides). 



Vines for trailing, or covering the ground, are periwinkle 

 (Vinca), herniaria, moneywort {Lysimachia nummularia) , 

 ground-ivy {Nepeta Glechoma), Rosa Wichuraiana, species of 

 native greenbrier or smilax (not the so-called smilax of florists), 

 Rvbus ladniatus, dewberries, and also others that usually are not 

 classed as vines. In the South, Japanese honeysuckle and 

 Cherokee rose perform this function extensively. In California, 

 species of mesembryanthemum (herbaceous) are extensively 

 used as ground covers on banks. Page 86. 



For quickly covering brush and rough places, the many kinds 

 of gourds may be used; also pumpkins and squashes, water- 

 melons, Cucumisfcetidissima, wild cucumbers {Echinocystis lobata 

 and Sicyos angulata), nasturtiums, and other vigorous annuals. 

 Many of the woody perennials may be used for such purposes, 

 but usually these places are only temporary. 



For arbors, strong woody vines are desired. Grapes are ex- 

 cellent; in the South the muscadine and scuppernong grapes are 

 adaptable to this purpose (Plate XV). Actinidia and wistaria 

 are also used. Akebia, dutchman's pipe, trumpet creeper, 

 clematis, honeysuckles, may be suggested. Roses are much 

 used in warm climates. 



For covering porches, the standard vine in the North is Vir- 



