208. SCROPHULARIACEAE — 209. BIGNONIACEAK 495 



Sepals nearly equal. Anther-halves confluent at the top. Corolla 2- 



lipped 108 



108. Sepals broad. Corolla red or violet. Stamens, at least the anterior 



exserted ; filaments with an appendage at the base. Flowers in 



racemes, rather large. — Species i. Central Africa. Artanema Don 



Sepals narrow. Stamens included ; filaments without an appendage. 



Flowers solitary, very small. — Species 4. East Africa. 



Stemodiopsis Engl. 

 FAMILY 209. BIGNONIACEAE 

 Shrubs or trees. Leaves usually opposite and compound, without stipules. 

 Flowers usually large and panicled, more or less irregular, hermaphrodite. 

 Sepals united below. Petals united below, imbricate in bud. Stamens inserted 

 on the lower part of the corolla, 4, in two pairs of unequal length, the fifth 

 sterile, rarely all 5 fertile. Anthers opening by two longitudinal slits, rarely 

 (Co/^a) by one. Disc present. Ovary superior, i — 2-celled. Ovules numerous, 

 in two or more rows, inverted. Style simple ; stigmas 2. Fruit a capsule with 

 the valves usually separating from the partition, or a nut or berry. Seeds 

 usually placed transversely and margined or winged, exalbuminous. — Genera 

 21, species 90. Tropical and South Africa. (Plate 137.) 



1. Fruit a capsule. Seeds winged. Ovary completely 2-celled. [Tribe 



TECOMEAE.] 2 



Fruit a berry or nut. Seeds not winged, but often margined. Ovary 

 cylindric, i-celled or incompletely, rarely [Colea) completely 2-celled. 

 Fertile stamens 4. Stem erect. [Tribe CRESCENTIEAE.] . . 14 



2. Fertile stamens 5. Anthers exserted, with parallel halves. Calyx 5- 



toothed. Ovules few, in two rows. Erect, spiny shrubs. Leaves 



fascicled. Flowers solitary or in clusters 3 



Fertile stamens 4. Leaves pinnate, very rarely {Stenolobinni) unifoliol- 

 ate 4 



3. Catyx tubular, .sHt on one side, with linear teeth. Corolla white, with a 



long tube. Capsule slightly compressed, with prickly warts. Leaves 

 undivided. — Species i. South Africa and southern Central Africa. 



Catophractes G. Don 



Calyx bell-shaped. Capsule much compressed, smooth. — Species 9. 



Tropical and South Africa Rhigozum Burch. 



4. Stamens projecting be3^ond the corolla-tube. Anther-halves divergent or 



divaricate. Flowers in racemes or panicles 5 



Stamens concealed within the corolla-tube 6 



5. Calyx spathe-hke, slit on one side. Seeds with a broad wing. Trees. Leaflets 



entire. — Species 3. Central Africa. They yield timber, edible seeds, 

 and medicaments, and serve as ornamental plants. " African tulip- 

 tree." Spathodea Beau v. 



Calyx bell-shaped, equally 5-toothed. Seeds with a narrow wing. Twining 

 shrubs. Leaflets serrate. — Species 3. Central and South Africa. 

 Used as ornamental plants. (Under Teconia Juss.) Tecomaria Fenzl 



