PEDALIACEAE.
FLOW. PL. AFR.
Pl. 138.
J. Fleischmann del.
Sesamum angolense Welw.
A Flowering plant. B Flower cut lengthwise. C Lower part of the flower cut lengthwise. D Stigma. E Cross-section of ovary.
14. (1.) Ovary completely 1-celled. Calyx bell-shaped, bursting irregularly.
Corolla red or orange, ventricose-campanulate, irregular. Anther-halves parallel or divergent. Fruit with a thick rind. Trees. Leaves pinnate.—Species 12. Tropical and South Africa. Some species yield timber or medicaments. (Kigelkeia Rafin.) (Plate 137.) Kigelia DC.
Ovary completely or incompletely 2-celled. 15
15. Leaves simple, undivided. Ovary 2-celled nearly to the apex. 16
Leaves pinnately compound or reduced to the winged leaf-stalk. Flowers panicled. 18
16. Leaves with a pair of spines at their base. Flowers solitary or in clusters, axillary or springing from the old wood. Calyx pouch-shaped, unequally
2-5-lobed. Corolla regular, long funnel-shaped. Anther-halves divaricate.—Species
2. Madagascar. Paracolea Baill.
Leaves without spines at the base, but the leaf-stalk sometimes becoming spine-like. Flowers in terminal racemes or panicles. Calyx bell-shaped,
5-toothed. Corolla more or less irregular, bell- or bell-funnel-shaped. 17
17. Leaves herbaceous; leaf-stalk hardening into a spine. Flowers in panicles.
Corolla irregular. Anther-halves divaricate.—Species 1. Madagascar. Phylloctenium Baill.
Leaves leathery, resinous; leaf-stalk not hardening into a spine. Flowers in racemes. Corolla almost regular. Anther-halves divergent, pendulous.—Species
1. Madagascar. (Under Tabebuia Gomez). Zaa Baill.
18. Leaves reduced to the jointed and winged leaf-stalk bearing sometimes
1-3 terminal leaflets. Calyx 5-toothed. Corolla slightly irregular.
Anther-halves divaricate. Disc saucer-shaped. Ovary septate at the base. Fruit succulent.—Species 7. Madagascar and neighbouring islands. Some species yield timber and edible fruits or serve as ornamental plants. (Arthrophyllum Boj.) Phyllarthron DC.
Leaves pinnate, opposite or whorled. 19
19. Calyx long tubular, 5-toothed. Corolla funnel-shaped, nearly regular.
Anther-halves divergent. Disc ring-shaped. Ovary 2-celled nearly to the apex. Inflorescences terminal.—Species 3. Madagascar. Siphocolea Baill.
Calyx bell-shaped. 20
20. Calyx subequally 5-cleft. Corolla regular, almost barrel-shaped, red.
Anther-halves divaricate. Disc saucer-shaped, crenate. Trees. Inflorescences terminal.—Species 1. Madagascar. Rhodocolea Baill.
Calyx 5-toothed or unequally cleft. Corolla more or less irregular, bell-funnel-shaped.
Fruit dry.—Species 25. Madagascar and neighbouring islands. Some species have edible fruits. Colea Boj.
[FAMILY 210.] PEDALIACEAE
Plants with glandular hairs. Leaves opposite, at least the lower ones, simple. Flowers irregular, hermaphrodite. Calyx 5-partite. Petals 5, united below, imbricate in bud. Stamens inserted on the lower part of the corolla-tube, the 4 fertile in pairs of unequal length, the fifth sterile, small, awl-shaped. Ovary superior, 2-8-celled with 2 or more axile ovules in each cell, rarely (Linariopsis) 1-celled with 2 basal ovules. Style 1, long, with 2 stigmas or stigmatic lobes. Fruit a capsule or a nut. Seeds with a straight embryo and thin albumen.—Genera 14, species 65. (Plate 138.)