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Thursday, July 23, 2020 | History

2 edition of gynostemium of the neottioid orchids found in the catalog.

gynostemium of the neottioid orchids

Finn N. Rasmussen

gynostemium of the neottioid orchids

by Finn N. Rasmussen

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  • 3 Currently reading

Published by AiO Print in Copenhagen .
Written in English

    Subjects:
  • Orchids -- Anatomy.

  • Edition Notes

    StatementFinn N. Rasmussen.
    SeriesOpera botanica -- no. 65
    Classifications
    LC ClassificationsQK 495 O64 R22 1982, QK495O64 R37 1982
    The Physical Object
    Pagination96 p. :
    Number of Pages96
    ID Numbers
    Open LibraryOL18624379M
    ISBN 108770011303

      The structure and function of orchid pollinaria The structure and function of orchid pollinaria Johnson, S.; Edwards, T. Cohesive masses of pollen known as pollinia have evolved independently in two plant families — Orchidaceae and Asclepiadaceae. Yet, the bilateral symmetry of orchids has allowed a greater degree of specialization in pollination systems and a much. The gynostemium or column is the orchid’s reproductive structure and consists of fused male (stamen/anther) and female (pistil/stigma) tissues. At the top of the column are the pollinia, packets of mature pollen grains, and at the base of the column is the .

    Buy Orchids of the Department of Valle del Cauca (Colombia), Volume 1 (): Cypripediaceae, Orchidaceae (Orchidoideae, Spiranthoideae, Vanilloideae, Epidendroideae (Malaxideae, Elleantheae)): NHBS - Marta Kolanowska, Dariusz L Szlachetko, Koeltz Scientific Books. Abstract. The breeding system is expected to strongly influence the genetic structure of plant populations. In the present study, isozyme variation is document.

    Different concepts of the Neottieae are briefly reviewed, and some features are discussed. The Neottieae in the narrow sense are a coherent group sharing few derived features with other 'neottioid' orchids. Cephalanthera is considered relatively ancestral, while Listera may be derived from an Epipactis-like ancestor. The incumbent anther of the Epidendroideae may be derived from a.   Apostasia presents a number of characters that are plesiomorphic in orchids, such as an actinomorphic perianth with an undifferentiated labellum, a gynostemium .


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Gynostemium of the neottioid orchids by Finn N. Rasmussen Download PDF EPUB FB2

The gynostemium of the neottioid orchids. [Finn N Rasmussen] Home. WorldCat Home About WorldCat Help. Search. Search for Library Items Search for Lists Search for Book: All Authors / Contributors: Finn N Rasmussen. Find more information about: ISBN: OCLC Number:   It contains comprehensive genomics and transcriptomics data, and a thorough discussion of the molecular mechanism of orchid floral morphogenesis.

The contributors to the book are all orchid enthusiasts with gynostemium of the neottioid orchids book than 20 years' experience in the more t species, orchids are the most species-rich of all angiosperm families. orchids are grown commercially using germination media with added sugars and minerals.

THE COLUMN The other major trait that most botanists use to recognize an orchid is a structure called the gynostemium, or column, produced by the fusion of male (stamen) and female (stigma) parts in the ˜ower. All but one of the five subfamilies share this. Abstract. Several types of pollinium stalk are present in a has a cellular epidermal pollinium stalk, whileTipularia has a unique stipe that results from prolongation and detachment of the ostalix andEphippianthus have no stipe, but do have a detachable rum, Corallorhiza, Cremastra, andOreorchis have by: This book focuses on the recent advances in the research of orchid biotechnology from the past ten years in Taiwan.

To advance the orchid industry, enhancement of basic research as well as. This book is the result of many years of studying and photographing orchids throughout Europe.

It contains numerous, never before published, extremely detailed photographs of the orchid flower. The floral development of 47 epidendroid and vandoid orchids was studied by means of scanning electron microscopy, paying special attention to the early development of the gynostemium.

This paperback book is a huge compendium of orchids. It contains detailed descriptions of many orchids, which are well cataloged. There are over pages, varieties of orchid and 2, color photographs, capturing the beauty of these g: gynostemium.

The e-book covers botanical description, cultivation procedures, post- harvest management, value addition and marketing. It also includes management of light, temperature, humidity, water, nutrient, insect, pest, diseases for orchids.

It also provides information about orchid specific cultivation practices, their management and marketing. Phalaenopsis orchids are one of a few species that produce aerial roots in addition to their own root system. Aerial roots on Phalaenopsis orchids are those roots that grow away from the pot or growing media and have a thicker, silvery appearance.

These roots also have a green tip at the end. These roots serve a purpose, and do benefit the g: gynostemium. The orchid floral organs represent novel and effective structures for attracting pollination vectors.

In addition, to avoid inbreeding, the androecium and gynoecium are united in a single structure termed the “gynostemium.” Gynostemium and ovule development in orchids are unique developmental processes in the plant kingdom. The floral and particularly gynostemium development often Chinese representatives of subtribe Orchidinae (in the genera Hemipilia, Amitostigma, Neottianthe, Gymnadenia, Platanthera and Orchis) was recently described in great detail and illustrated by SEM-micrographs by Luo, Y-B.

& Chen, S.-C. in Bot. Linn. Soc. – ().The study revealed that the early gynostemium ontogeny is. Phylogenetie considerations The Neottioideae sensu Rasmussen () are perhaps the most variable subfamily of monandrous orchids concerning gynostemium structures, which indicates the need of data from many species for a discussion of evolutionary aspects.

A revision of the genus Oreorchis (Orchidaceae) - Volume 54 Issue 3 - N. Pearce, P. Cribb. This is a guide to orchids and growing them. I know orchids and this book seems like it was written a long time ago, because a lot of his advice has changed in the modern days of orchid growing.

Read more. One person found this helpful. Helpful. Comment Report abuse. Blu s: 9. The gynostemium of the neottioid orchids. Jan ; ; F N Rasmussen; Rasmussen, F.

The gynostemium of the neottioid orchids. Opera Botanica   The floral morphology and ontogeny of 12 species of the orchid subtribe Satyriinae is described and documented by line drawings and SEM micrographs.

The study includes 9 Satyrium species, the sole species of Satyridium and the two species of Pachites. The early ontogeny is similar to that of the better known icant staminode primordia are not visible, but the bilobed.

The pollination biology of Aspidogyne argentea, Aspidogyne longicornu andErythrodes arietina was studied in south-eastern Brazil. The three species are self-compatible but are pollinator-dependent. These three orchid species offer nectar as a reward to pollinators and flower visitors.

The function of silica accumulation is reconsidered in the light of the epiphytic life-form of many of the investigated orchids.

Evolutionary polarity, Orchidales, outgroup comparison phylogeny, silica cells, stegmata. REFERENCES. BARBER, D.

& SHONE, The gynostemium of the neottioid orchids. Orchids have three pistils and three stamens, but they differ from other flowers, which present these elements as separate units, in that orchids have them fusioned into one structure called column or gynostemium, located in the center of the labelum, that usually showy and colored lip.

Most advanced Orchids have five basic features 1. The presence of a column: call gynostemium. 2. The flower is bilaterally symmetric 3.

The pollen are glued together into the pollinica, a mass of waxy pollen on filament. 4. The seeds are microscopically small (exception Disa& Vanilla) 5. The seeds can, under natural circumstances, only.In the case of Pure Beauty orchids, it is moss.

Node – the joint or notch on the Spike from which a another flower stem can grow Roots – the lowest part of the plant that attaches to the ground or to a support delivering water and nourishment to the rest of the plant.Orchids comprise one of the largest and most diverse angiosperm families.

Currently, ab orchid species have been reported, and there are many more to be discovered ([Dressler, ][1]). Due to their biological complexity, orchids have been proposed as an attractive system with which to.