Taxon	Illustrator ⠉
	Triphora trianthophoros subsp. trianthophoros Tropidia polystachya Arethusa bulbosa	Barbara Alongi Barbara Alongi Barbara Alongi

Herbs, terrestrial, cespitose, erect. Roots branched. Rhizomes short, rigid. Stems erect, branched or simple, reedlike, slender, hard. Leaves few, cauline; sheaths not articulate; blade convolute, plicate, thin. Inflorescences terminal or occasionally from axils of distal leaves, few to many-flowered panicles [racemes, rarely glomerate], pedunculate [sessile]. Flowers resupinate, small; sepals subequal; lateral sepals distinct [connate at base], forming small mentum; petals similar to sepals, slightly falcate, shorter than sepals; lip sessile, base saccate; column short, fleshy, with short foot; anther abaxial, erect, subequal to rostellum, more than 1/2 length of column; pollinia 2, sectile; stigma entire; viscidium terminal. Fruits capsules, oblong, cylindric.

Distribution

Tropical and subtropical regions, North America, Mexico, West Indies, Central America, South America, Asia, w Pacific

Discussion

Species 20 (1 in the flora).

Selected References

None.

Lower Taxa

Tropidia polystachya

"thin" is not a number.