1. Flowers in spikes. Corolla scarcely exceeding the calyx; lobes of the upper lip similar to those of the lower.—Species 1. Island of Socotra.
Cockburnia Balf.
Flowers in heads. Corolla distinctly exceeding the calyx; lobes of the upper lip much shorter than those of the lower. 2
2. Heads axillary. Corolla-tube slit open between the lobes of the upper lip.—Species
2. Madeira, Canaries, and Cape Verde Islands. (Under
Globularia L.) Lytanthus Wettst.
Heads terminal. Corolla-tube not slit.—Species 3. North Africa.
Used medicinally. Globularia L.
SUBORDER ACANTHINEAE
[FAMILY 216.] ACANTHACEAE
Leaves opposite or whorled, simple, without stipules, usually dotted with cystoliths. Flowers more or less irregular, 4-5-merous, hermaphrodite. Petals united below. Fertile stamens 2 or 4. Disc usually present. Style simple. Stigma entire or 2-lobed, rarely 4-lobed. Ovary superior, 2-celled, rarely (Afromendoncia) 1-celled. Fruit a loculicidal capsule, the valves bearing the split dissepiments, more rarely a drupe. Seeds 2 or more, mostly exalbuminous; funicle usually with a hook-like outgrowth.—Genera 106, species 1100. (Plate 142.)
1. Fruit a 1-2-celled, 1-2-seeded drupe. Funicles small, without an outgrowth.
Ovary 1-2-celled, with 2 ovules in each cell. Stamens 4, with 2-celled anthers. Corolla with contorted aestivation. Calyx minute, enveloped by two large bracteoles. Flowers solitary or in clusters in the leaf-axils, rarely in terminal racemes. Leaves not dotted with cystoliths. Climbing shrubs. [Subfamily MENDONCIOIDEAE.] 2
Fruit a 2-celled, 2- or more-seeded capsule. Funicles with a tubercle- or hook-shaped outgrowth, or thickened throughout their length.
Ovary 2-celled. 4
2. Ovary 1-celled. Fruit oblong or ovate. Flowers in axillary clusters.—Species
6. Tropics. (Including Liraya Pierre, under Mendoncia
Vell.) Afromendoncia Gilg
Ovary 2-celled, at least when young. 3
LENTIBULARIACEAE.
FLOW. PL. AFR.
Pl. 141.
J. Fleischmann del.