THE NURSERY-LIST 389 



is responsible for the entire process from seed-time to harvest and 

 death. The practice of buying perennials from nurserymen de- 

 prives the amateur of one of the choicest satisfactions in plant- 

 growing. To see young things coming up, to handle them with 

 skill and patience, to provide the conditions they most require, 

 to watch the result of a year's good effort, all this is a part of 

 good gardening. 



Pereskia (Barbados Gooseberry). Cadacece. 



Seeds when obtainable. Cuttings, as described under cacti. 

 P. aculeata is much used as a stockforzygocactus. P. grandifolia 

 is sometimes used for the same purpose, as it is fully as good as the 

 other species. Cuttings of P. aculeata can be made a foot or more in 

 length, and of sufficient size for immediate use ; or the graft may be 

 inserted when the cutting is made. See Cacti, page 261. 



Perilla. Labiates. 



Readily raised from seeds sown in the open when weather is 

 warm, or started under glass and transplanted; tends to become 

 spontaneous. 



Periploca. Asclepiadacece. 



Increased mostly by layers or greenwood cuttings under glass, in 

 summer or autumn. Root-cuttings succeed. Seeds are also em- 

 ployed. 



Peristeria. Orchidacece. 



Increased by division or separating the pseudobulbs, as growth 

 commences. See Orchids, page 372. 



Peristrophe. Acanthacece. 



Propagated by softwood cuttings taken at any time and placed 

 in a warm bed. 



Pernettya. Ericaceae. 



Propagation is by seeds, or cuttings of half-ripened wood in 

 summer under glass ; also by layers and suckers. 



Persea. Lauracece. 



Raised from seeds. For growing under glass, layers of ripened 

 shoots may be made in autumn, or cuttings of firm shoots. See 

 Avocado. 



