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Neotropical Euphorbiaceae s.l.
Platygyna
SUMMARY
twining shrub, monoecious. Exudate absent*. Unarmed*. Indumentum present, hairs large, stinging. Stipules free*, simple, unlobed, entire *, not spine-like*, not leaf-like*, without glands. Leaves distributed evenly along stem, alternate, simple, unlobed, toothed, base symmetrical, blade not pellucid-punctate, leaf glands 0*; venation pinnate; domatia absent*; stipel-like appendages absent*. Petiole present, short or very short (leaves almost sessile), without swellings or bends at base or apex*, without glands. Inflorescence with or without axis, leaf-opposed or terminal, males flowers in small clusters, females in short, 1–4 flowered spikes or racemes; bracts not leaf-like*, green; pedicels not articulated*. Male flowers: pedicels long; sepals 3–6, valvate, partially fused, greenish; petals 0; disc 0; stamens (3) 5–9 (14); anther with conspicuous modification (connective wide), thecae extrorse or latrorse in bud; pistillode absent. Female flowers: pedicels short or very short; sepals 5–9; imbricate, free, greenish; petals 0; disc 0; ovary locules 3–4, ovules per locule 1; styles 3–4, partially to completely fused into a funnel-shaped column (stigmas free), crenate at apex, styles or stigmas not flat*, surface papillose (within); staminodes absent. Fruit dehiscent, not sculptured, hairy, greenish to brown; seed without appendage, covering or membraneous layer*, not fleshy*; embryo flat, not minute, cotyledons leaf-like.
An asterisk * indicates a state has been assumed but not yet confirmed.
World Checklist: 7 spp.