18. Ovules sunk in the placentas. Ovary oblong. Fruit obtusely angled, bursting irregularly. Perianth-segments oblong. Flowers drooping.--Species 1. South Africa (Cape Colony); also naturalised in the Canary Islands, Madeira, and the Azores. Used as an ornamental plant; the bulb is poisonous. =Amaryllis= L. Ovules not sunk in the placentas. Ovary top-shaped. Fruit acutely angled, 3-valved.--Species 10. South Africa and southern Central Africa. Some are used as ornamental plants. =Brunsvigia= Heist. 19. Flowers solitary. [Subtribe ZEPHYRANTHINAE.] 20 Flowers in umbels occasionally reduced to a single flower. [Subtribe CRININAE.] 22 20. Perianth with a short tube, funnel-shaped, yellow. Filaments long. Anthers oblong, attached at the back near the base. Scape above-ground.--Species 1. North-west Africa (Algeria). Used as an ornamental plant. =Sternbergia= Waldst. & Kit. Perianth with a long tube. Filaments very short. Anthers linear, attached at the base. Scape underground. 21 21. Perianth salver-shaped, yellow or whitish. Stamens in a single row.--Species 9. South Africa (Cape Colony). The fruit of some is eaten or used in medicine. =Gethyllis= L. Perianth funnel-shaped, white or reddish. Stamens in 2 rows.--Species 5. South Africa. =Apodolirion= Bak. 22. Perianth-tube perceptibly shorter than the limb. 23 Perianth about as long as or longer than the limb. 26 23. Flowers rather small, yellow or yellowish-white, almost regular. Perianth-segments lanceolate, slightly longer than or twice as long as the tube. Stigmas 3.--Species 2. South and East Africa. =Anoiganthus= Bak. Flowers large, red, reddish-yellow, or reddish-white. Stigma 1, simple or 3-lobed. 24 24. Flowers almost regular. Perianth-segments elliptical, about twice as long as the tube. Umbels 6-9-flowered. Fruit oblong.--Species 1. South Africa (Cape Colony). Used as an ornamental plant. =Vallota= Herb. Flowers distinctly irregular. Perianth-segments 3-4 times as long as the tube. 25 25. Umbels 2-4-flowered. Scape hollow. Perianth hairy within. Fruit globose. (See 7.) =Hippeastrum= Herb. Umbels many-flowered; spathe of 2 bracts. Scape solid.--Species 2. South Africa to Damaraland. =Ammocharis= Herb. 26. Ovules sunk in the placentas, usually few in each ovary-cell. Stigma very small, capitate. Anthers linear. Scape solid.--Species 60. Tropical and South Africa. Some are used as ornamental or medicinal plants. (Including _Stenolirion_ Bak.) (Plate 19.) =Crinum= L. Ovules not sunk in the placentas, many in each ovary-cell. Stigma more or less distinctly 3-lobed or 3-parted. Anthers oblong. Scape hollow.--Species 25. South and East Africa and Angola. Some are used as ornamental plants. =Cyrtanthus= Ait. 27. (1.) Leaves fleshy, very long (1-2 m.), in a rosette at the base or the top of the stem. Very tall plants. [Subfamily =AGAVOIDEAE=.] 28 Leaves not fleshy and not very long. Smaller plants. [Subfamily =HYPOXIDOIDEAE=.] 30