494 208. SCROPHULARIACEAE 



97. (91.) Stamens inserted at the throat of the corolla. Anther-halves 



parallel. Corolla white, unequally 3 — 5-lobed. Creeping herbs. Leaves 

 broad, palmately nerved, gland-dotted. Flowers solitary. — Species i. 



West Africa Hydranthelium H. B. & Kunth 



Stamens, all or two of them, inserted in the tube of the corolla. ... 98 



98. Stamens inserted in the tube and at the throat of the corolla. ... 99 

 Stamens inserted in the tube of the corolla 102 



99. Sepals free, broad. Corolla slightly irregular, white. The fifth, sterile 



stamen filiform. Prostrate herbs. Leaves very small. Flowers solit- 

 ary. — Species i. Island of Reunion. . . . Allocalyx Cordem. 

 Sepals united below. Corolla 2-lipped. Lower stamens with a tooth- 

 or bristle-hke appendage at the base 100 



100. CaJyx without wings or prominent angles, but sometimes striped ; seg- 



ments subequal. — Species 17. Tropics. Some are used medicinally. 



{Vandellia L.) Lindernia All. 



Calyx winged or with very prominent angles loi 



loi. Calyx subequally toothed. Anterior stamens sharply bent at the base. 

 Stem usually leafless. — Species 15. Central and South Africa. 



Craterostigma Höchst. 



Calyx 2-lipped. Anterior stamens not sharply bent at the base. Stem 



leafy. — Species 8. Tropical and South Africa. Some are used as 



ornamental or medicinal plants Torenia L. 



102. Anther-halves separate, not contiguous. Corolla 2-lipped 103 



Anther-halves contiguous or confluent 105 



103. Sepals united high up. Fruit 2-valved. Stem procumbent or ascending. 



— Species 8. Northern East Africa and Egypt. Lindenbergia Lehm. 

 Sepals united at the base only. Fruit 4-valved 104 



104. Placentas winged and connate in the fruit. Glabrous water- or marsh- 



plants. — Species 6. Central Africa. Some are used medicinally. 

 [Anihulia Lam., Stemodiacra P. Browne) . . . Limnophila R. Br. 

 Placentas not winged, usually separate. Corolla blue. Glandular- 

 pubescent land-plants. — Species i. .Central Africa. Stemodia L. 



105. Sepals united high up 106 



Sepals vmited at the base only 107 



106. Corolla 2-lipped. Anther-halves separate or confluent at the top. 



Ovary completely septate. Leaves opposite. — Species 3. Two of 

 them indigenous in tropical and South Africa, the third naturalized in 



the Azores. Used as ornamental plants Mimulus L. 



Corolla nearly regular. Anther-halves completely confluent. Ovary 

 septate at the base only. Leaves all radical. Flowers axillary. — 

 Species 5. Southern and tropical Africa and Egypt. Limosella L. 



107. Sepals very unequal. Anther-halves separate. — Species 10. Tropics, 



South Africa, and Egypt. Some are used as ornamental or medicinal 

 plants. {Moniera P. Browne, including Herpestis Gaertn. and Bramia 

 Lam.) , . , , . Bacopa Aubl. 



