104. (99.) Median and lateral glands present. Sepals erect. Fruit winged. Style long. Seeds numerous. Radicle incumbent; cotyledons folded. Leaves undivided. 105 Median glands absent. Style short, rarely long, but then radicle accumbent. Cotyledons not folded. 106 105. Petals white, with dark veins. Fruit obcordate. Style-apex shortly and obtusely lobed. Hispid herbs.--Species 1. North-west Africa. =Psychine= Desf. Petals violet or red. Fruit ovoid. Style-apex distinctly and acutely lobed. Glabrous herbs.--Species 1. North Africa and Abyssinia. =Schouwia= DC. 106. Stamens more or less perigynous. Petals white. Seeds 4-6. Cotyledons inserted behind the bend of the embryo. 107 Stamens hypogynous. Cotyledons inserted at the bend of the embryo. 108 107. Filaments with an appendage at their base. Fruit winged above. Style short. Seeds 4. Radicle accumbent. Leaves lanceolate, ovate, or pinnatipartite.--Species 2. North-west Africa. Used as vegetables. =Teesdalia= R. Br. Filaments without an appendage. Fruit not winged. Style absent. Seeds 6. Radicle incumbent. Leaves linear.--Species 1. High mountains of East Africa. =Subularia= L. 108. Filaments, at least the longer ones, with a tooth-like appendage. Lateral sepals saccate at the base. Petals rose-coloured. Style short. Radicle incumbent. Flowers in racemes. (See 90.). =Aethionema= R. Br. Filaments without an appendage. Sepals not saccate. 109 109. Flowers solitary in the axils of the radical, undivided leaves. Petals rose-coloured. Fruit-valves wingless, separating from the laterally dilated placentas. Seeds 6. Radicle incumbent.--Species 2. North-west Africa. Used as ornamental plants. =Ionopsidium= Reichb. Flowers in racemes. Fruit-valves separating from the narrow or thickened but not dilated placentas, or fruit indehiscent. 110 110. Fruit-valves not winged. Fruit oblong or ovate. Petals white. Leaves pinnately divided. (See 27.) =Hutchinsia= R. Br. Fruit-valves winged. 111 111. Radicle accumbent. Petals white or rose. Leaves undivided.--Species 6. North Africa and Abyssinia. Used medicinally. “Penny-cress.” =Thlaspi= L. Radicle incumbent. 112 112. Fruit oblong or elliptical. Stigma sessile. Petals white or yellow. Leaves undivided.--Species 2. North-west Africa (Algeria). (Including _Pastorea_ Tod.) =Bivonaea= DC. Fruit obcordate. Stigma borne upon a short style. Funicle free. Petals white. (See 36.). =Capsella= DC. SUBORDER RESEDINEAE FAMILY 89. RESEDACEAE Leaves alternate, stipulate. Flowers in terminal spikes or racemes, irregular. Sepals 4-8. Petals 2-8, free, rarely 0. Disc hypogynous, one-sided, rarely wanting. Stamens 3-40, free or united at the base. Carpels 2-6, superior and usually stalked, open at the top, distinct or united and then forming a 1-celled ovary. Ovules inverted. Stigmas sessile. Seeds reniform, exalbuminous, with a curved embryo.--Genera 6, species 45. (Plate 55.)