Pedal '■in in. 



XCVII. PEDALIXE.E (STAPF). 



541 



2|— 1 lin. broad, entire. Pedicels 1-|— 2 lin. long. Calyx 1J lin. long ; seg- 

 ments lanceolate-triangular, acute. Corolla-tube 1^-1 \ in. long, 3-4 

 lin. wide above the middle, violet at the base, otherwise yellow ; limb 

 \\ in. across ; lobes rotundate, 3 lin. across. Fruit ovoid, quadrangular, 

 without spines at the base of the angles, but with tubercles on the faces, 

 7-8 lin. long, 4-5 lin. in diam. — Pedaliophytum busseanum, Engl. Jahrb. 

 xxxii. Ill, t. v. 



Mozamb. Dist. German East Africa: in meadows near Kwa-Mbaramula, 

 near the Kovmna River, Busse, 1046. 



2. PTERODISCUS, Hook. ; Bentli. et Hook. f. Gen. PL ii. 1057. 



Calyx small, 5-partite. Corolla-tube funnel-shaped, oblique or 

 slightly gibbous at the base ; limb spreading, subbilabiate ; lobes 

 orbicular, subequal. Stamens didynamous ; anthers converging; anther- 

 cells ovoid, divergent, pendulous from the apex of the connective, 

 dehiscing by a short longitudinal slit. Disc enlarged posticously. 

 Ovary 2-celled ; cells undivided; ovules 1-2 in each cell from above the 

 middle of the septum or 10-12 in 2 series. Fruit indehiscent, laterally 

 compressed with 4 longitudinal wings, unarmed ; pericarp spongy, with 

 large cavities between the wings. Seeds 1-2 in each cell, pendulous ;. 

 testa finely honeycombed. — Perennial succulent herbs. Stem tuberous 

 at the base. Leaves coarsely dentate to pinnati-laciniate, rarely sub- 

 entire. Flowers solitary, shortly pedicelled in the axils of the leaves, 

 yellow or purple. 



Species about 14, 2 of them in South Africa. 

 Ovules 1-2 in each cell ; corolla purple, rarely bright 

 orange or brick-red (species of South and South- 

 west Africa). 

 Corolla purple. 



Corolla-tube widened almost from the base, nearly 



symmetric, funnel-shaped, li-2 in. long . 1. P. speciosus. 



Corolla-tube cylindric and very slender to the 

 middle, then gradually widened, slightly 

 asymmetric, 1|- in. long . . . . 2. P. Elliottii. 



Corolla-tube widened from the base, asymmetric, 

 slightly inflated at the middle on the upper 

 side, often curved or twisted, 1^-lf in. long . 3. P. ngamicus. 

 Corolla bright orange to brick-red . . . . 4. P. aurantiacus. 



Ovules 10—12 in each cell (where known); corolla 

 usually yellow with or without purple markings in 

 the throat (species of East Africa). 

 Leaves homceomorphic, the extremes in the same 

 individual clearly connected by intermediate 

 forms. 

 Leaves pinnatiiid in the lower part. 2-J- in. long : 



segments 6 lin. long-, J— 1-J lin. broad . o. P. kelleriamts. 



Leaves entire, repand or with a few short irregular 

 teeth. 

 Leaves 1^—3 times longer than broad. 



Corolla 2 in. long . . . . 6. P. somaliensis. 



