h) Anthers opening by apical pores; ovary deeply lobed, torus enlarging in fruit and the carpels often becoming separate; ovules 1-2 in each cell. =Ochnaceæ= hh) Anthers opening by slits lengthwise: i) Shrubs or trees: j) Leaves stipulate: k) Flowers unisexual: l) Petals entire: m) Stipules conspicuous, persistent. =Euphorbiaceæ= mm) Stipules very inconspicuous, caducous. =Celastraceæ= ll) Petals bilobed; stamens 5; disk composed of hypogynous glands opposite the petals. =Chailletiaceæ= kk) Flowers hermaphrodite: l) Stipules axillary, convolute in bud, often very large; ovary entire, 2-celled; petals entire; ovule inserted in the middle of the placenta. =Simarubaceæ=(Irvingia) ll) Stipules not axillary: m) Petals entire or emarginate; ovules erect; disk entire or lobed. =Celastraceæ= mm) Petals often deeply lobed; ovules pendulous; disk of separate glands opposite the petals. =Chailletiaceæ= jj) Leaves exstipulate: k) Stamens united into a tube; sepals not glandular; ovary 2- or more-celled. =Meliaceæ= kk) Stamens free or connate only at the base: l) Stamens hypogynous or very slightly perigynous: m) Ovary 1-celled: n) Leaves fairly large; flowers in panicles, not supported on the enlarged torus. =Anacardiaceæ= nn) Leaves very small and crowded; flowers in slender spikes or racemes. =Tamaricaceæ= mm) Ovary 2- or more-celled; disk present; petals mostly valvate; ovary 3-5-celled. =Olacaceæ= ll) Stamens distinctly perigynous; calyx tubular and often petaloid; petals mostly very small and scale-like. =Thymelæaceæ= ii) Herbs: j) Flowers hermaphrodite; disk usually absent: k) Sepals valvate; bark fibrous; leaves often with thread- like tails at the base. =Tiliaceæ=