Perianth greenish-yellow, hairy outside, with a funnel-shaped tube. Filaments flat. Anthers large. Spathes surrounded by empty bracts and arranged in heads.--Species 1. South Africa (Cape Colony). Used as an ornamental plant; the stem contains sugar. =Witsenia= Thunb. 30. Filaments united into a tube. Perianth blue.--Species 1. Naturalised in the Mascarene Islands. An ornamental plant. [Subtribe SISYRICHINAE.] =Sisyrinchium= L. Filaments free or nearly so. Perianth yellow or red. [Subtribe LIBERTINAE]. 31 31. Stem leafy. Spathes in lax corymbs. Perianth orange-coloured. Style filiform, with club-shaped, erect or spreading stigmas.--Species 1. Naturalised in the Mascarene Islands. An ornamental and medicinal plant. =Belamcanda= Adans. Stem leafless. Spathes solitary or in heads. Perianth pale yellow. Style very short, with thread-shaped, recurved stigmas.--Species 6. South Africa. =Bobartia= Ker 32. (23.) Stigmas at the tip of the style-branches. Inner and outer perianth-segments almost equal. Filaments united. Underground part of the stem a bulb. [Tribe TIGRIDIEAE, subtribe CIPURINAE.] 33 Stigmas on the underside of the dilated style-branches. Inner and outer perianth-segments unequal. [Tribe MORAEEAE.] 36 33. Style-branches simple or one of them forked. 34 Style-branches divided. Perianth-segments usually crisped. 35 34. Perianth white, divided to the ovary.--Species 1. South-east Africa (Natal). =Keitia= Regel Perianth yellow or brownish-red, with a short tube.--Species 12. South Africa; one species also naturalised in St. Helena. Used as ornamental plants. =Homeria= Vent. 35. Perianth yellow, divided to the ovary, twisting up in fading. Style-branches cylindrical, glabrous.--Species 2. South Africa (Cape Colony). =Hexaglottis= Vent. Perianth greenish brownish or red, with a short tube. Style-branches dilated, fringed on the margin.--Species 8. South Africa and southern West Africa. Some are used as ornamental plants. =Ferraria= L. 36. Style-branches broadened, but not petal-like. Perianth blue; segments free, the inner with the edges rolled inwards and the tip recurved. Filaments free. Scape flattened.--Species 1. Angola and islands of equatorial West Africa. Used as an ornamental plant. [Subtribe MARICINAE.] =Marica= Ker Style-branches winged, petal-like. [Subtribe IRIDINAE.] 37 37. Perianth-segments free, not bearded. Filaments usually united.--Species 60. Southern and tropical Africa. Several species have edible root-stocks, others are poisonous, many are used as ornamental plants. (Including _Dietes_ Salisb. and _Vieusseuxia_ Delaroche). =Moraea= L. Perianth-segments united at the base. Filaments free. 38 38. Ovary 1-celled with parietal placentas. Inner perianth-segments linear, acuminate.--Species 1. North-west Africa (Algeria). =Hermodactylus= Adans.