f) Leaves compound, rarely unifoliolate and then with a distinctly tumid petiole, sometimes sessile: g) Leaves gland-dotted; disk usually present between the stamens and ovary; ovary often deeply lobed; cells 2-ovuled; pendulous; stipules rarely present. =Rutaceæ= gg) Leaves not gland-dotted, sometimes fleshy; ovules pendulous from the central axis, 2 or more in each cell; disk often fleshy, rarely absent; stipules persistent and often paired; shrubs or herbs; leaves mostly 2-foliolate or pinnate; filaments often with a scale or gland attached to the base. =Zygophyllaceæ= ff) Leaves simple but sometimes deeply and variously divided: g) Stamens more than twice as many as the petals; calyx valvate: h) Flowers hermaphrodite; anthers not inflexed in bud: i) Petals and stamens hypogynous; hairs often stellate; stipules in pairs. =Tiliaceæ= ii) Petals and stamens perigynous; hairs not stellate; stipules interpetiolar. =Rhizophoraceæ= hh) Flowers hermaphrodite; anthers inflexed in bud; petals and stamens perigynous. =Lythraceæ= hhh) Flowers unisexual; anthers inflexed in bud; hairs stellate or lepidote. =Euphorbiaceæ= gg) Stamens not more than twice as many as the petals: h) Trees, shrubs or woody climbers: i) Leaves stipulate, sometimes stipules rudimentary or of hairs: j) Disk absent or inconspicuous or of separate glands; calyx often glandular: k) Calyx mostly with a pair of glands outside; trees, shrubs or climbers; stamens mostly 10. =Malpighiaceæ= kk) Calyx not glandular; anther-cells back to back; trees or shrubs; petals 4; stamens 4. =Salvadoraceæ= jj) Disk present, conspicuous; calyx not glandular: k) Flowers hermaphrodite: l) Stamens inserted on or below the margin of the disk; filaments subulate: m) Stamens 3-5; sepals imbricate. =Celastraceæ= mm) Stamens 8-10; sepals valvate. =Rhizophoraceæ= ll) Stamens usually 3, inserted on the disk; filaments flattened or connivent, often adnate to the ovary; sepals imbricate.