The forked lower lobe of Heart-leaved Twayblade (Listera cordata) is distinctive.    From Wordnik.com.  [BC Bloggers] Reference

I am glad you have seen Listera; it requires to be seen to believe in the co-ordination in the position of the parts, the irritability, and the chemical nature of the viscid fluid.    From Wordnik.com.  [More Letters of Charles Darwin — Volume 2] Reference

I have examined Listera ovata, cordata, and Neottia nidus avis: the pollen is uniform; I suspect you must have seen some observation founded on a mistake from the penetration and hardening of sticky fluid from the rostellum, which does penetrate the pollen a little.    From Wordnik.com.  [More Letters of Charles Darwin — Volume 2] Reference

Listera, fertilisation of.    From Wordnik.com.  [More Letters of Charles Darwin — Volume 2] Reference

I have seen this in Listera.    From Wordnik.com.  [More Letters of Charles Darwin — Volume 2] Reference

Listera ovata, 398.    From Wordnik.com.  [Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants] Reference

Listera cordata).    From Wordnik.com.  [BC Bloggers] Reference

Orchis pyramidalis.) or Listera.    From Wordnik.com.  [More Letters of Charles Darwin — Volume 2] Reference

In higher regions several species of genera such as Amitostigma, Calypso, Cypripedium, Epipactis, Galearis, Goodyera, Habenaria, Herminium, Listera, Malaxis, Neottia, Neottianthe, Oreorchis, Platanthera, Poneorchis and Tipularia are abundant, with some slipper orchid species: Cypripedium flavum, C. tibeticum and C. bardolphianum forming vast populations of several thousand specimens in the Huanglong valley. 15 orchid taxa were first described in science from the Huanglong valley.    From Wordnik.com.  [Huanglong National Scenic Area, China] Reference

Plants of Kopetdag Woodlands in the Red Book of Turkmenistan (2000) Common Name Latin Name TREES Walnut Juglans regia Pomegranat Punica granatum Juniper Juniperus turcomanica Turkmen Pear Pyrus turcomanica Boissier Pear Pyrus boissieriana Apple Malus sieversii (= M. turkmenorum) Turkestan mountain ash Sorbus turkestanica FORBS AND FERNS Mandrake Mandragora turcomanica Fritillaria raddeana Hyacinthus transcaspicus Atropa komarovii Allium paradoxum Allium vavilovii Epipactis veratrifolia Dactylorhiza flavescens Listera ovata Onobrychis nikitinii Orchis simia Aethionema kopet Dagi Centaurea kopet Dagensi Senecio khorossanicus Ophrys transchyrcana Ophioglossum vulgatum Asplenium adiantum-nigrum Current Status.    From Wordnik.com.  [Kopet Dag woodlands and forest steppe] Reference