Trees or shurbs, unarmed, non laticiferous. Leaves opposite, exstipulate,
simple or compound. Inflorescence corymbose-fasciculate, racemose or
fasciculate, terminal or lateral. Flowers andro-monoecious, andro-dioecious
or dioecious, actinomorphic, usually 4-5 -merous. Sepals free. Petals sometimes
none. Disc annular, lobed. Stamens 4-12, often 8, hypogynous or perigynous;
filaments free, filiform; anthers 2-loculed, versatile, oblong or linear, longitudinally
dehiscent; pollen grains tricolpate or tricolporate. Ovary superior, bilobed,
2-loculed, compressed; ovules 2 in each locule; style 1 or 2, 2-armed, free,
or connate; stigmas 2, filiform. Fruit a samara; mericarps 2, winged on the
outer side, 1-2 -seeded. Seeds campylotropous, exalbuminous; testa thin. Embryo
with flat or plicate cotyledons.
Temperate northern hemisphere and tropical and sub-tropical Asia; 2 genera and co 120 speices, 1 genus and 17 species in India.
Literature. FANG. WEN P'El (1978) Aceraceae. Fl. Reipubl. Rop. Sinicae 46: IV- X, 66-273. 68. pl. MURRAY, E. (1975) Aceraceae in Pl. W. Pak.92: 1-7. NAVAR, M.P. & A. DUTTA. (1982) Aceraceae. Fasc. Fl. India 9: 1-22.
Temperate northern hemisphere and tropical and sub-tropical Asia; 2 genera and co 120 speices, 1 genus and 17 species in India.
Literature. FANG. WEN P'El (1978) Aceraceae. Fl. Reipubl. Rop. Sinicae 46: IV- X, 66-273. 68. pl. MURRAY, E. (1975) Aceraceae in Pl. W. Pak.92: 1-7. NAVAR, M.P. & A. DUTTA. (1982) Aceraceae. Fasc. Fl. India 9: 1-22.
