Botanical Survey of India | Flora of India

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RESEDACEAE
N.P. Balakrishnan and R.K. Premanath



Herbs, annual or perennial, or rarely shrubs. Leaves spiral, simple, entire or sometimes lobed or pinnatisect; stipules absent or minute and glandular. Inflorescences terminal, spikes or racemes, bracteate. Flowers solitary in axils of bracts, bisexual or unisexual, zygomorphic, 4 - 7-merous, rarely plants monoecious. Sepals 4 -7 or more, free or sometimes basally connate, imbricate in bud, persistent, often irregular. Petals absent or 2 - 7, alternating with sepals, often with a scaly membranous appendage at base. Disc absent, or if present infundibuliform or cupular, often eccentric, hypogynous. Stamens 3-many, inserted on disc or receptacle, equal or unequal; filaments elongated, free or united at base. Ovary unilocular, of 2 - 6 connate carpels, often lobed at top, rarely free; ovules many, on 2 - 6 parietal placentas, amphitropous or campylotropous. Fruit usually a gaping capsule, opening at top or a berry. Seeds many, reniform to subglobose, small, carunculate, non-endospermous.

N. Africa, S. Europe, W. Asia, C. Asia to India, South Africa and Eastern U.S.A.; 6 genera and ca 70 species, 3 genera and 5 species in India.

Literature. MITRA, KRISHNA & S.N. MITRA (1976) Pollen morphology in relation to taxonomy and plant geography of Resedaceae. Bull. Bot. Surv. India 18: 194 - 202, tt. 1 - 2.



KEY TO THE GENERA


1a. Shrubs, with rigid branches, often straggling; petals absent or if present minute; fruit a berry 1. Ochradenus
b. Herbs, with herbaceous branches, not straggling; petals present, well-developed or reduced; fruit a capsule 2
2a. Petals 2, reduced; disc absent; fruits sessile 2. Oligomeris
b. Petals 4 - 7, well-developed; disc present; fruits pedicelled 3. Reseda


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