TETRAGONIA 
585 
Tecoma Juss. (incl. Tecomaria Spach, Campsis Lour., Campsidium 
Seem., Pandorea Endl., and other genera retained by Schumann in 
Nat. Pfl*\ Bignoniaceae (11). 90 sp. trop. and. warm temp. T. 
radicans Juss., which climbs like ivy, is often grown in gardens. 
Tectona Linn. f. Verbenaceae (iv). 3 sp. Indo-mal. 7'. grandis L. f. 
is the teak-tree, largely cultivated in Java, India, &c., for its timber, 
which is very hard and durable ; enormous quantities of it are used 
for ship-building, &c. The wood sinks in water unless thoroughly 
dried ; this is effected in India by the process of ‘girdling,’ which 
consists in removing a ring of bark and sap-wood from the tree 
near the base. It of course soon dies, and is then left standing for 
two years. 
Teesdalia R. Br. Cruciferae (11. 5). 2 sp. Eur., Medit. ; 1 in Brit. 
The firs, are arranged in a corymb, which gradually draws out into a 
raceme as flowering progresses. 
Telfairia Hook. Cucurbitaceae (11). 2 sp. trop. Afr., Mascarenes. 
T. pedata Hook, is cultivated for its seeds, which are edible and also 
yield oil. 
Tellima R. Br. Saxifragaceae (1). 7 sp. N.W. Am. 
Templetonia R. Br. Leguminosae (ill, 3). 7 sp. Austr. Like Bossiaea. 
Tephrosia Pers. Leguminosae (111. 6). 120 sp. trop. and subtrop., 
esp. Afr. , Austr. 
Terminalia Linn. Combretaceae. 105 sp. trop. The fruits of many 
sp. are winged (see order). Those of T. Chebula Retz. and others 
(myrobalans) are used in dyeing and tanning, and also in medicine. 
Ternstroemia Mutis ex Linn. ( Taonabo Aubl.). Theaceae. 20 sp. 
S. Am., 8 As. 
Ternstroemiaceae. An order in Bentham and Hooker’s 5th cohort 
(Guttiferales) divided into several orders in Engler’s system. The 
bulk of the genera are placed in Theaceae , the rest in Caryocaraceae, 
Marcgraviaceae , Stachyuraceae , Dilleniaceae , &c. 
Testudinaria Salisb. Dioscoreaceae. 2 sp. Cape Col. T. Elephantipes 
Salisb. (Hottentot bread) is common in hothouses. It has the general 
habit of a Dioscorea, but has an enormous tuber projecting out of the 
soil, with a thick outer coating of cork. This tuber is the swollen 
first internode of the stem. From it yearly, during the wet season, 
there springs by adventitious budding the year’s shoot, a long thin 
climbing stem with large leaves and small firs. This dies down in the 
dry season, and the corky covering protects the mass of the plant 
from drought (p. 168). 
Tetracera Linn. Dilleniaceae. 45 sp. trop., esp. Am. 
Tetragonia Linn. Aizoaceae (11. 3). 50 sp. Cape Col., Austr., N.Z. , 
&c. Sometimes 2 firs, stand one above the other in the same axil. 
From the fruit thorny projections grow out which may bear firs, (a 
proof of the axial nature of the inferior ovary). T. expansa Murr. is 
often used as a vegetable (New Zealand spinach). 
