THE NURSERY LIST. 



277 



Theobroma (Cacao, Chocolate-tree). Sterculiacece. 



Propagated by ripened cuttings, which should be placed in 

 sand, under glass, in "neat. 



Thermopsis. Leguminosce. 

 By seeds and divisions. 

 Thrift. See Armeria. 

 Thrinax. Palmce. 



Seeds. 

 Thunbergia. Acanthacece. 



Seeds. Cuttings of firm wood in a frame. 

 Thunia. Orchidece. 



As the form of the pseudo-bulbs suggests, this genus is 

 easily propagated by cuttings. These are made about six 

 inches long and inserted in pots of sand. After standing in 

 an ordinary propagating frame or moist stove for a short 

 time young growths will appear at the nodes. When large 

 enough they are taken up and potted in ordinary compost. 

 Two years at least are needed for them to attain to flower- 

 ing size, but this is the best method where a large number of 

 plants are wanted. (See also under Orchids.) 



Thuya, including Biota (Arbor-Vitse, White Cedar errone- 

 ously). Coniferce. 



Seeds. Layers. Cuttings of green shoots in summer in a 

 cool frame. Cuttings of ripe wood, as recommended for 

 retinospora. The named varieties are often grafted on pot- 

 ted common stocks in winter or early fall. 



Thyme ( Thymes vulgaris}. Labiatcr. 



Seeds and divisions. 

 Thyrsacanthus, Odontonema (Thyrse Flower). Acanthacece. 



Seeds ; cuttings made in spring, and placed in a close, 

 warm frame. 



Tiarella . Saxifragece . 



Seeds and divisions. 

 Tigridia (Tiger Flower). Iridece. 



May be increased by seeds, or generally by offsets. 

 Tilia (Basswood, Linden, Lime-tree). Tiliacece. 



Stocks are grown from stratified seeds. Layers may be 

 made, and cuttings may be employed, but the named sorts 



