kkk) Flowers usually polygamous; leaves mostly compound; petiole not glandular at the apex; wood resinous. =Anacardiaceæ= jj) Calyx open in bud; leaves simple; stamens up to 20, free or nearly so. =Olacaceæ= ii) Stamens more or less united into a tube or into bundles, hypogynous; indumentum usually stellate. =Sterculiaceæ= hh) Anthers 1-celled, stamens more or less monadelphous; calyx with or without an epicalyx: i) Trees or rarely shrubs; leaves digitately compound; carpels not or very rarely splitting away from the central axis in fruit. =Bombacaceæ= ii) Mostly herbs; leaves simple; carpels often splitting away from the central axis or becoming free in fruit. =Malvaceæ= gg) Sepals imbricate or rarely completely connate or calyptrate: h) Petals and stamens perigynous; leaves stipulate: i) Seeds with endosperm and a curved embryo; mostly herbs; sepals 2. =Portulacaceæ= ii) Seeds without endosperm; sepals more than 2. =Rosaceæ= hh) Petals and stamens more or less hypogynous or flowers unisexual; disk often present: i) Trees, shrubs or woody climbers: j) Leaves compound, pinnate or rarely unifoliolate and then with a tumid petiole: k) Ovule ascending: l) Leaves gland-dotted; style or styles central. =Rutaceæ= ll) Leaves rarely gland-dotted; styles or stigmas often separated: m) Wood with resin ducts and leaves scented; style or stigma often eccentric. =Anacardiaceæ= mm) Wood not resinous; leaves not or rarely scented; style or stigma central. =Sapindaceæ= kk) Ovule or ovules pendulous; wood without resin ducts, bark bitter; leaves usually not gland-dotted. =Simarubaceæ= jj) Leaves simple: k) Flowers unisexual; disk present. =Euphorbiaceæ= kk) Flowers hermaphrodite: l) Torus enlarged after flowering; ovary mostly deeply lobed, the carpels becoming separated in fruit; anthers often opening by pores.