98 



nieiital flGwering tree, is said to yield a handsome and valuable wood. 

 The wood of some of the climbing species represents in section a sort 

 of Maltese cross, resulting from the unequal development of the layers 

 of liber. The well-known Bignonia capreolafa has this peculiarity. 

 Two genera only are represented in Natal, eacli by a single species, 

 and neither of them have any economic value. 

 Number of species about 450. 



Ovary 2-celled, Fruit Joculicidal. Seeds winged. A 



rambling shrub. Tecomaria. 



Ovary 1-celled. Fruit indehiscent. !*^eeds not winged. 



A tree. Kigelta. 



List of Species. 

 1 Tecomaria, Spam. 2 Kigelia, DC. 



capensis, Spach. AB. pinnata, DC. CD- 



ORDER CXXI. PEDALINE^. 



A small tropical Order, one species only of which is really indi- 

 genous in Natal, Sesamum, which is included here and also in the 

 Flora capensis, is really, I think, an introduced i^lant, and is cultivated 

 by the natives. Two species only of the family are of much economic 

 value. They are Sesamum indicum and S. orientale. Their seeds 

 yield a vahiab'e oi', chiefly used in the manufacture of soap. These 

 plants are largely cultivated in India and on the East coast of Africa. 

 Several species of Martynia bear curious hooked seed vessels, and are 

 not uncommon in cultivation. Uncaria procumheiis, the " Grapple " 

 plant of South Africa, formerly included in this Order, has now been 

 removed to the Order Rubiaceae. Our only species of the Order is a 

 somewhat showy weed when in flower, and has lately been introduced 

 into cultivation at home. 



Number of species about 40. 



Capsule acute or acuminate at apex. Sesamum. 



Capsule 3-horned at apex. Ceratotheca. 



List of Species. 

 I Sesamum, Linn. 2 Oeratotheca, Endl. 



indicum, B.C. A. triloba, E.M. AB. 



ORDER CXXII. ACANTHACE^. 



A large and well-known family, which is represented all over the 

 world, except in the coldest cliniates. None of the species are used 

 medicinally in Euro} e, though in the countries where they are 

 indigenous they are sometimes employed as tonics, febrifuges, etc. 

 In India one species has some reputation as a remedy for rheumatism, 

 and another yields the blu« " Room" dye A French tonic, "Drogue 

 amere," is the tincture of Justicia paniculata with otlier ingredients 

 added. Acanthus mollis is the plant whose leaves have been copied 



