150 



to bring this plant regularly into bearing. A second huge 

 species of similar use, T. occidentalis, J. Hook., occurs in 

 G-uinea. 



Terfezia Leonis, Tulasne. 



South Europe, North America. This edible truffle, together ' 

 with other species of this and other genera, is deserving of 

 naturalization in Australia. 



Tetragonia implexicoma, J. Hook. 



Extra-tropic Australia, New Zealand, Chatham's Island. A 

 frutescent widely expanding plant, forming often large 

 natural festoons, or trailing and climbing over rocks and 

 sand, never away from the coast. As a Spinage-plant it is 

 as valuable as the succeeding species. It is well adapted 

 for the formation of bowers in arid places. T. trigyna, Banks 

 and Soland., seems identical. 



Tetragonia expansa, Murray. 



The New Zealand Spinage, occurring also on many places 01 

 the coast and in the desert-interior of Australia. Known 

 also from New Caledonia, China, Japan and Valdivia. An 

 annual herb, useful as a culinary vegetable, also for binding 

 drift- sand. 



Teucrium Marum, L. 



Countries at the Mediterranean Sea. A small somewhat 

 shrubby plant, in use for the sake of its scent, containing a 

 peculiar Stearopten. T. Scordium, L. from Europe and 

 Middle Asia, T. Chamaedrys, L., T. Folium, L. and T. 

 Creticwm, L. from South Europe, are occasionally drawn 

 into medical use. All these together with many other 

 species from various countries are pleasantly odorous. 



Thea Chinensis, Sims.* 



The Tea-shrub of South-eastern Asia. This evergreen and 

 ornamental bush has proved quite hardy in our lowland 

 clime, where in exposed positions it endures without any 

 attention as well our night frosts as also the free access of 

 scorching summer winds. But it is in our humid valleys 

 with rich alluvial soil and access to springs for irrigation, 

 where only the most productive tea-fields can be formed, 



