XCII. SCROPHULARIACEiE (HEMSLEY AND SKAx). 



26" 



upper lip of the corolla. Anthers 2-celled, rarely with 1 cell smaller than the 

 other or quite absent. Capsule loculicidal. 



Only Tropical African genus . • . .54. Bartsia. 



1. APTOSIMUM, Burch.; Benth. et Hook. f. Gen. PI. ii. 927. 



Calyx usually deeply 5-cleft; lobes narrow, subvalvate. Corolla- 

 tube narrow at the base, then suddenly expanded into a long throat ; 

 limb spreading, oblique, 5-lobed ; lobes flat, neaidy equal, rounded, the 

 two upper outside in aestivation. Stamens 4, didynamous, attached 

 near the base of the corolla, included ; filaments filiform ; anthers 

 transverse, hispid or ciliate, 1-cellecl by confluence, those of the two- 

 smaller posticous ones often empty. Style filiform ; stigma small, 

 emarginate. Capsule short, compressed at the top contrary to the 

 septum, obtuse or emarginate, septicidally 2-valved ; valves 2-cleft, 

 adhering to the placentiferous column at the base. Seeds numerous, 

 small, obovoid or depressed-spherical ; testa reticulated ; funicle some- 

 times dilated ; embryo straight or slightly curved, cotyledons ovate. — 

 Dwarf dense often glandular-hairy spinescent under shrubs or rigid 

 herbs. Leaves alternate, crowded, often narrow, 1-nerved. Flowers 

 sessile or very shortly stalked, axillary, 2-bracteolate. Corolla usually 

 veined. — Chilostigma, Hocbst. in Flora, 1841, i. 372. 



A genus confined to Africa. In addition to the following there are 9 species in 

 South Africa. 



* Leaves linear to lanceolate, often 3 or 4 in. long ; 

 midrib persistent and often spinescent (scarcely 

 spinescent in A. pumilum). 

 Plant dwarf, csespitose, usually with very short 

 branches. 

 Calyx cleft very nearly to the base. 



Corolla scarcely i in. long . . . 1. A. pumilum. 



Corolla |— 1 in. long. 



Bracts shorter or not longer than the 



calyx; corolla about 1 in. long . . 2. A. Nelsii. 



Bracts longer than the calyx ; corolla about 



f in. long . . . . . . 3. A. lineare. 



Calyx not cleft below the middle. 



Leaves up to 2\ in. long, densely and shortly 



glandular-pubescent . . . . 4. A. glandulosum. 



Leaves up to 1^ in. long, very scabrid , 5. A. scaberrimum. 



Plant with decumbent or erect branches up to 1 ft. 

 long. 

 Leaves thick and fleshy, lanceolate, 8-12 lin. 



long, 2-3 lin. broad . . . . 6. A. Gossiveileri* 



Leaves thin, linear, linear-lanceolate or linear- 

 oblanceolate, l-2f in. long, 11-2^ lin. 

 broad. 

 Calyx-segments broadest above the middle . 7. A. arenarium. 

 Calyx-segments broadest at the base. 



Flowers solitary; leaves up to 2 in. long. 

 Leaves 1-1^ in. long ; calyx 2-3 lin. 



long; corolla up to 9 lin. long . 8.-4. Welwitschii. 



