A Preliminary Inventory of Orchidaceae in India PDF Download

Author: Sudhanshu Kumar Jain
Publisher:
ISBN:
Category :
Languages : en
Pages : 133

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Author: IUCN/SSC Orchid Specialist Group
Publisher: IUCN
ISBN: 9782831703251
Category : Ecological surveys
Languages : en
Pages : 176

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Book Description
This action plan chronicles the threats faced by wild orchids, but more importantly to critical habitats that host extraordinarily high orchid diversity and endemicity. It explores and recommends specific ways that national and local government, legislators, scientists and orchid conservationists as well as growers can all help to reverse present trends. The facts and viewpoints presented in this comprehensive document update and supplement the information available to conservation organizations and agencies through the world so that they can lobby their appropriate government offices more effectively.

Author: Shaik Mahammad Khasim
Publisher: Springer Nature
ISBN: 9813294566
Category : Science
Languages : en
Pages : 551

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Book Description
This book on “Orchid Biology: Recent Trends & Challenges” reviews the latest strategies for the preservation and conservation of orchid diversity and orchid germplasm. It is an outcome of the Proceedings of the International Symposium on “Biodiversity of Medicinal Plants & Orchids: Emerging Trends and Challenges” held on 9-11 February 2018 at Acharya Nagarjuna University, India. In addition, eminent orchid experts from around the globe were invited to contribute to this book. All chapters were peer-reviewed by international experts. The Orchidaceae are one of the largest families of flowering plants, comprising over 700 genera and 22,500 species and contributing roughly 40 percent of monocotyledons. They also represent the second-largest flowering plant family in India, with 1,141 species in 166 genera, and contribute roughly 10% of Indian flora. Orchids comprise a unique group of plants and their flowers are among the most enchanting and exquisite creations of nature. Phylogenetically and taxonomically, the Orchidaceae are considered to be a highly evolved family among angiosperms. They show incredible diversity in terms of the shape, size and colour of their flowers, and are of great commercial importance in floriculture markets around the globe. Millions of cut flowers of Cymbidium, Dendrobium, Cattleya, Paphiopedilum, Phalaenopsis, Vanda etc., besides potted orchid plants, are sold in Western Countries and thus, the orchid cut flower industry has now become a multimillion-dollar business in Europe, the USA and South East Asia. Besides their ornamental value, orchids hold tremendous pharmaceutical potential. Root tubers of Habenaria edgeworthii form an important component of the ‘Astavarga’ group of drugs in Ayurvedic medicine. It is an established fact that tubers of some terrestrial orchids have been used to treat diarrhoea, dysentery, intestinal disorders, cough, cold and tuberculosis. Some orchids, particularly those belonging to the genera Aerides, Arachnis, Cattleya, Cymbidium, Dendrobium, Epidendrum, Oncidium, Paphiopedilum, Phalaenopsis, Renanthera, Vanda etc. have been extensively used to produce internationally acclaimed hybrids. Yet paradoxically, Indian orchids are victims of their own beauty and popularity. As a result, their natural populations have been declining rapidly because of unbridled commercial exploitation in India and abroad. In fact, some orchids are now at the verge of extinction, e.g. Renanthera imschootiana, Diplomeris hirsuta, Paphiopedilum fairrieanum, Cypripedium elegans, Taeniophylum andamanicum etc. Given the global importance of orchids in terms of securing human health and wealth, this comprehensive compilation, prepared by international experts, is highly topical. Its content is divided into five main sections: (I) Cryopreservation & Biotechnology, (II) Orchid Biodiversity & Conservation, (III) Anatomy & Physiology, (IV) Pollination Biology and (V) Orchid Chemicals & Bioactive Compounds. All contributions were written by eminent orchid experts/professors from around the world, making the book a valuable reference guide for all researchers, teachers, orchid enthusiasts, orchid growers and students of biotechnology, botany, pharmaceutical sciences and ethnomedicine. It will be equally valuable for readers from the horticultural industry, especially the orchid industry, agricultural scientists and policymakers.

Author: C. Sathish Kumar
Publisher:
ISBN:
Category : Orchids
Languages : en
Pages : 176

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Author: Tiiu Kull
Publisher: Springer Science & Business Media
ISBN: 1402088027
Category : Science
Languages : en
Pages : 468

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Book Description
As stated many times before the purpose of Orchid Biology, Reviews and Perspectives (OB) is to present reviews on all aspects of orchids. The aim is not to balance every volume, but to make a balanced and wide ranging presentation of orchids in the series as a whole. The chapters in this, the last volume of the series, range over a number of topics which were not covered before. Singapore is justly famed for its orchids. They can be seen on arrival (or dep- ture) in its modern, highly efficient and comfortable Changi Airport and on the way from it to town. Vanda Miss Joaquim, the first hybrid to come from Singapore became its National Flower. This natural hybrid can be seen on its currency, stamps, and public and private decorations. Many excellent breeders, starting with Prof. Eric Holttum who bred the first man made hybrid (Spathoglottis Primrose), produced numerous magnificent hybrids and won countless awards in Singapore and elsewhere. These hybrids served to enrich the country’s orchid mystique. In the opening chapter of this volume Dr. Teoh Eng Soon (Western style: Eng Soon Teoh), himself a prize winning orchid breeder, grower and author writes about some of the breeders who contributed to the Singapore orchid fame. Prof. Hans Fitting was one of the best known plant physiologists of his time. As a young man he studied the effects of pollen on orchid flowers.

Author: Johns Augustine
Publisher: Daya Books
ISBN: 9788170352334
Category : Orchids
Languages : en
Pages : 172

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Book Description
Orchids have fascinated people ever since their discovery by Father of Botany . Theophrastus (370-385 B.C.). They are much loved but little studied as they are the largest, most complex and difficult group with nearest estimate range between 25,000 to 35,000 species in over 800 genera. Majority of orchids known in cultivation are, however, natives of tropical forests of Indian Subcontinent (mainly from India, Myanmar, Sri Lanka, Thailand, Malaysia). The Indian Bulbophyllum, Cymbidium, Dendrobiums, Paphiopedilums, Vandas, etc. contributing to develop high quality hybrids. Indian subcontinent is considered primary/secondary center of origin for Orchids found in phytogeographically interesting North Eastern region. The region one of the hot-spots of the world is the richest Biodiversity center of the Indian subcontinent. The authors have made an earnest attempt on most deserving topic. Bulbophyllum is one of the important orchid genera represented by a number of species in this region. This polymorphic and difficult taxa from taxonomic point of view was treated differently by different workers as the taxa are linked with each other in such a way that separation into smaller groups was difficult due to complexities in the group. The book nicely provides the present Status and Biodiversity of Bulbophyllum and allied genera of India, in general and Northeast in particular with keys to these genera, sections and species that were previously included under Bulbophyllum. This is the first consolidated, revisionary taxonomic account on Indian Bulbophyllum and allied genera. A total of 80 species of Bulbophyllum and allied genera are included in this book. The account is supported by 15 illustrations, 37 plates, and 28 tables. Table 1-28 cover monthly average temperature (maximum and minimum), rainfall, relative humidity (morning-evening), detail vegetative and reproductive phenophase data, phenological calendar etc. The book is also primarily intended for the categorization of the genus Bulbophyllum taking the characters of pollinia, seeds and karyotype studies. Chapter 1: General Introduction, Chapter 2: Biodiversity of Bulbophyllum, Chapter 3: Phenology, Chapter 4: Palynology, Chapter 5: Seed Morphometry, Chapter 6: Cytology, Chapter 7: General Conclusion.

Author: Gunnar Seidenfaden
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 0

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Author: American Orchid Society
Publisher:
ISBN:
Category : Orchid culture
Languages : en
Pages : 808

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Author: Botanical Survey of India
Publisher:
ISBN:
Category : Endangered plants
Languages : en
Pages : 406

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Author:
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 564

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