Pedalium. | XCVII. PEDALINE# (STAPF). d41 
2}—4 lin. broad, entire. Pedicels 14-2 lin. long. Calyx 1} lin. long; seg- 
ments lanceolate-triangular, acute. Corolla-tube 14-1} 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 busseanwm, Engl. Jahrb. 
mo Lit. t. v. 
Mozamb. Dist. (German East Africa: in meadows near Kwa-Mbaramula, 
near the Rovuma River, Busse, 1046. 
2. PTERODISCUS, Hook.; Benth. 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 Sonth and Soutii- 
west Africa). 
Corolla purple. 
Corolla-tube widened almost from the base, nearly 
symmetric, funnel-shaped, 13—2 in. long . 1. P. speciosus, 
Corolla-tube cylindric and very slender to the 
middle, then gradually widened, slightly 
asymmetric, 1} in. long : - oe 
Gorolla-tube widened from the base, asymmetric, 
slightly inflated at the middle on the upper 
side, often curved or twisted, 14-13 in. long. 3. P. ngamicus, 
Corolla bright orange to brick-red . : : : 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 pinnatifid in the lower part, 24 in. long ; 
segments 6 lin. leng, 3-14 lin. broad : 
Leaves entire, repand or with a few short irregular 
teeth. 
Leaves 14-3 times longer than broad, 
Corolla 2 in. long : : “ . : 
2. P. Elliottii. 
5. P. kellerianus. 
6. P. somaliensis. 
