278 THE NURSERY-BOOK. 



are usually grafted on strong common stocks. Mound-layer- 

 ing is sometimes practiced. 



Tillandsia. Bromeliacece. 



May be increased by seeds, and by suckers which should 

 be allowed to grow large before being detached from the 

 parent and should then be inserted singly in pots, in a com- 

 post of loam, peat, and leaf mould. Keep moderately moist 

 and well shaded. T. usneoides is the " Spanish Moss" of the 

 south ; rarely propagated, but may be grown from seeds or 

 divisions of the moss. 

 Tobacco. See Nicotiana. 

 Tolu Balsam-tree. See Myroxylon. 

 Tomato (Lycopersicum esculentuni). Solanacecc. 



Seeds, usually started under glass. Cuttings of growing 

 shoots. 

 Torenia. Scrophularihece. 



Seeds. Cuttings, in a warm frame. 

 Torreya . Conifer ce . 



Increased the same as Thuya and Retinospora. 

 Trachelium (Throatwort). Campanulacece. 



Seeds and cuttings. 

 Trachelospennum, Rhynchospermum. Apocynacece. 



Seeds. Firm cuttings, in a frame. 

 Trachycarpus. Palmce. 

 Seeds and suckers. 

 Tradescantia. Commelinaceoe. 



Usually by cuttings ; also by seeds and divisions. 

 Trapa (Water Caltrops). Onagrariece. 



Seeds. 



Tree of Heaven. See Ailanthus. 

 Trichilia. Meliacece. 



Seeds. Cuttings of the ripened wood, with leaves, or 

 under glass in heat. 



Trichopilia. Orchidece. 



Divisions of the plants. (See also under Orchids.) 

 Trichosanthes (Snake Gourd). Cucurbitacece. 



Seeds, either in-doors or out. 



