Pterostylis - Pterostylis Nutans, Pterostylis Coccinea, Pterostylis Stenochila, Pterostylis Melagramma, Pterostylis Grandiflora (Paperback)

Chapters: Pterostylis Nutans, Pterostylis Coccinea, Pterostylis Stenochila, Pterostylis Melagramma, Pterostylis Grandiflora, Pterostylis Curta, Pterostylis Barbata, Pterostylis Recurva. Source: Wikipedia. Pages: 28. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: See text. Pterostylis coccinea, sepals and petals removed(1) - Lip(2) - Hinge(3) - stigma(4) - polliniaPterostylis is a terrestrial deciduous genus of some 100 or so species of orchids found mainly in New Zealand, Australia, Papua New Guinea and New Caledonia. The common name of this orchid is Greenhood - a number of species have green flowers with the dorsal sepal forming a "hood" over the rest of the flower. The name Pterostylis is based on the Greek words meaning winged column (pteron - a wing, stylis - a column). In a number of species, the flower has a hinged lip that swings backwards when touched by an insect, forming a tube with the column and wings. The trapped insect is then forced to crawl out of the tube, removing the pollinia in the process. Flora of New Zealand, Volume II ...More: http: //booksllc.net/?id=245914