XCII. SCROPHULARIACEX (HEMSLEY AND SKA). 267 
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. Pl. 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, nearly equal, rounded, the 
two upper outside in exstivation. Stamens 4, didynamous, attached 
near the base of the corolla, included; filaments filiform; anthers 
transverse, hispid or ciliate, 1-celled 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, l-nerved. Flowers 
sessile or very shortly stalked, axillary, 2-bracteolate. Corolla usually 
veined.—Chilostigma, Hochst. in Flora, 1841, i. 872. 
A genus contined 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 4. pumilum). 
Plant dwarf, cespitose, usually with very short 
branches. 
Calyx cleft very nearly to the base. : 
Corolla scarcely 4 in. long . 4 : . 1. A. pumilum. 
Corolla 3-1 in. long. 
Bracts shorter or not longer than the 3 
calyx; corolla about 1 in. long . . 2. A. Nelsir. 
‘Bracts longer than the calyx ; corolla about 
2 in. long . - : : : . 38. A, lineare. 
Calyx not cleft below the middle. 
Leaves up to 23 in, long, densely and shortly 
glandular-pubescent é : . 
Leaves up to 14 in. long, very scabrid , 
Plant with decumbent or erect branches up to 1 ft. 
. A, glandulosum, 
. A, scaberrimum, 
OU 
long, : 
Leaves thick and fleshy, lanceolate, 8-12 lin. a 
long, 2-3 lin. broad . : : . 6. A, Gossweiler. 
Leaves thin, linear, linear-lanceolate or linear- 
oblanceolate, 1-23 in. long, 14-2} lin. 
broad. 
Calyx-segments broadest above the middle 
Calyx-segments broadest at the base. 
Flowers solitary ; leaves up to 2 in. long. 
Leaves 1-14 in. long; calyx 2-3 lin. : 
long ; corolla up to 9 lin. long . 8.4. Welwitschii. 
wT 
. A, arenarium. 
