Download or read book Wild Orchids in Nepal written by Kevin White and published by . This book was released on 2000 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Orchids of Nepal written by Bhakta Bahadur Raskoti and published by . This book was released on 2009 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Antioxidant Activity of Selected Wild Orchids of Nepal written by Mukesh Babu Chand and published by GRIN Verlag. This book was released on 2018-01-16 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2015 in the subject Biology - Botany, grade: -, , language: English, abstract: The inhibitory or delaying action of both the synthetic chemicals and naturally occurring phytochemicals against oxidative damage to tissues by free radicals produced in biological system of living organisms is known as antioxidant activity. Since some phytochemicals are responsible for biological as well as medicinal activities, nine wild orchids of Nepal were assessed for total polyphenolics and flavonoids content along with the antioxidant activity. The ethanolic extract of Eria graminifolia pseudobulbs, Gastrochilus acutifolius leaf and root, G. distichus whole plant, Luisia trichorhiza leaf and root, Otochilus albus pseudobulbs, Papillionanthe uniflora whole plant, Pholidota articulata leaf and pseudobulbs, Rhynchostylis retusa leaf, and Trudelia cristata leaf and stem were prepared by Soxhlet extraction. Phytochemicals were detected by previously established protocols with minor modifications. The total flavonoids were estimated with aluminium chloride method and total polyphenolics content with Folin-Ciocalteu phenol reagent method. Antioxidant activity was assessed by DPPH (2, 2-diphenyl-1-picryl hydrazyl) free radical scavenging assay. There was significant variation of total flavonoids, total polyphenolics content and antioxidant activity among the orchid extracts at P = 0.05. The total flavonoids varied with highest in Rhynchostylis retusa leaf (110.68 ± 4.52 mg QE/g) and lowest content in Gastrochilus acutifolius root (22.32 ± 1.10 mg QE/g); total polyphenolics with highest in Trudelia cristata stem (69.68±2.78 mg GAE/g) and lowest content in Gastrochilus acutifolius leaves (11.89±0.64 mg GAE/g). Also, the antioxidant activity varied with highest in Trudelia cristata stem (IC50 79.69 μg/ml) and lowest DPPH radical scavenging activity in Gastrochilus acutifolius leaf (IC50 341.79 μg/ml). However, none of the orchid extracts were as effective as quercetin – the reference compound – in radical scavenging activity (IC50 32.90 μg/ml). Total polyphenolics and flavonoids content and antioxidant activity of selected orchid extracts in this study were higher or lower than medicinal plant and orchid extracts of previous studies with considerable margin. Again, their antioxidant activity was positively associated with total flavonoids and total polyphenolics content. [...]
Download or read book Beautiful Orchids of Nepal written by Keshab R. Rajbhandari and published by . This book was released on 2001 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wild Orchids of Florida written by Paul Martin Brown and published by . This book was released on 2005 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 2002, Wild Orchids of Florida was the very first field guide for this orchid-rich state, and it inspired many to try their hand at orchid hunting. Because of its overwhelming popularity and in an attempt to provide the latest developments in orchid research, native orchid expert Paul Martin Brown follows up with this newly revised and expanded edition. The guide contains 200 new points of fact, including: · more than 100 new county records established since 2002 · three recently rediscovered species that have not been seen in 100 years · two previously undocumented species, six new hybrids, and several new color forms described and illustrated for the first time · the resurrection and revalidation of the little-used genus of Gymnadeniopsis · 34 revised county distribution maps, 37 new color photos, and three new watercolors by Stan Folsom With its comprehensive yet easy-to-follow treatment, Wild Orchids of Florida remains the essential field companion for professional botanists, native plant enthusiasts, nature lovers, or anyone who wants to learn more about what's growing out in the wilds of Florida.
Download or read book Wild Orchids of Peninsular Malaysia written by and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Medicinal Orchids of Asia written by Eng Soon Teoh and published by Springer. This book was released on 2016-08-30 with total page 753 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique book brings together a wealth of data on the botanical, ethno-medicinal and pharmacological aspects of over 500 species of Asian medicinal orchids. It starts off by explaining the role and limitations of complimentary and herbal medicines, and how traditional Asian medicine differs from Western, “scientific” medicine. The different Asian medical traditions are described, as well as their modes of preparing herbal remedies. The core of the book presents individual medicinal orchid species arranged by genera. Each species is identified by its official botanical name, synonyms, and local names. Its distribution, habitat and flowering season, uses and pharmacology are described. An overview sums up the research findings on all species within each genus. Clinical observations are discussed whenever available, and possible therapeutic applications are highlighted. The book closes with chapters on the conservation of medicinal orchids and on the role of randomized clinical trials.
Download or read book Britain s Orchids written by Sean Cole and published by Princeton University Press. This book was released on 2020-11-03 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: An accessible, comprehensive and beautifully illustrated guide--the only one to cover all the orchids found in Britain and Ireland Covering more than fifty species as well as hybrids and variants, this is an engaging, intuitive and in-depth identification guide to all the orchids of Britain and Ireland at all stages of development, from first emergence through to setting seed. Drawing on the authors' extensive field experience and the latest scientific research, Britain's Orchids uses multiple techniques to help both beginner and more advanced orchid enthusiasts to identify even the trickiest plants. The book is beautifully illustrated with plates by talented artist Sarah Stribbling as well as more than 1,000 detailed, instructive and evocative photographs by the authors. Orchids have long fired the imagination with their beauty and rarity. This book aims to ignite or increase your passion for these special plants and for the conservation of their habitats, from remote mountaintops to urban wild spaces. The first book to cover all the species, subspecies and varieties, as well as hybrids, at all stages of development Lavishly illustrated with close to 100 stunning plates drawn to scale to show key identification features and more than 1,000 stunning photo showing orchids in their natural settings Simple, step-by-step system for identifying almost any orchid Up-to-date distribution maps and seasonal charts showing when each species can be seen in its various stages Special-feature identification keys that can be used on difficult plants
Download or read book Ireland s Wild Orchids written by Brendan Sayers and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to the orchids of Ireland, for beginner and expert alike. With many photos and illustrations.
Download or read book The wild orchids of Taiwan an illustrated guide written by Wei-Min Lin and published by . This book was released on 2014 with total page 921 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Orchids of Europe written by Bo Mossberg and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A beautiful, richly illustrated book on Europe's wild orchids - perhaps the most enigmatic and popular group in the botanical world. The orchid family (Orchidaceae), numbering some 25,000 species, is one of the world's two largest families of flowering plants. Whilst the vast majority of orchids are found in the wet tropics, Europe accommodates c.130 native orchid species which are equally arranged in dense inflorescences of great beauty. Furthermore, the adaptations encountered in some of the European species are just as fascinating as those of their tropical relatives. This book provides an introduction to the native orchids of Europe. It features four sections: 'Structure and systematics', 'Orchids and the environment', 'Orchid portraits' and 'How to learn more'. This part constitutes the bulk of the book, presenting individual genera in a sequence which reflects their most likely evolutionary relationships. Each genus is introduced by one page of text and illustrated by one or more colour plates on the following pages. The text gives information on how to recognise the genus, where it is distributed, and the estimated number of species it contains - alongside information on the range of environmental requirements and flowering times in the European species. Depending on the genus, additional information may be found on topics such as pollination biology, associated fungi, evolutionary relationships or systematic problems. Beautiful watercolour artwork accompanies the text, making this an indispensable gift for anyone interested in the natural world. Not only is it a useful field guide, it is also a beautiful art book.
Download or read book Orchids in Traditional Medicine written by Sourav Mukherjee and published by Notion Press. This book was released on 2020-01-07 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: Orchids are beautiful, aren’t they? Decorations made of these spectacular plants make the whole atmosphere divine! Their range of colour, the pattern of the flowers and the dots and ridges on the floral parts make them unique and ‘different’. Interestingly, they are the most well-praised medicinal plants in the world. For ages, most countries have been harbouring and using these plants to treat several ailments like that in Ayurved, ancient Chinese medicine, etc. They’re also advocated and boasted for potential healers. Besides, numerous folklore uses, which may or may not be documented, can be traced. Being very juvenile, our research has provided scanty (as compared to their actual uses) information on the validation part of these plants. Orchids in Traditional Medicine tries to take you to the mysteriously beautiful world of orchids, providing a glimpse into understanding their potential and medicinal uses. It also seeks to putatively understand the Ayurvedic doctrine and the existing disputes regarding the use of orchids. Let us now explore the world of medicinal orchids!
Download or read book Rare Endemic and Endangered Plants of Nepal written by Tirtha Bahadur Shrestha and published by . This book was released on 1996 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wild orchids of Cameron Highlands written by Regional Environmental Awareness Cameron Highlands and published by . This book was released on 2009 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wild Orchids of Victoria Australia written by Jeffrey Jeanes and published by . This book was released on 2006-01-01 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Orchid Species from Himalaya and Southeast Asia Vol 3 R Z written by Eng Soon Teoh and published by Springer Nature. This book was released on 2022-05-03 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: A presentation of over 700 popular orchid species in 104 genera carefully detailed with beautiful photographs and concise descriptions of plants, their distribution and habitats by a well-known author and photographer. Each genus is assigned a separate chapter. Coverage of the most commonly cultivated Asian species including their varieties and cultivars (e.g. in Bulbophyllum 72 species; Coelogyne 33 species; Dendrobium 161 species; Paphiopedilum 58 species; Phalaenopsis 60 species; Vanda 44 species) is exhaustive. The orchids are photographed from their best perspective, individual blooms and entire inflorescence: additionally, many species are also shown growing in their natural habitat. Representative hybrids are included to illustrate how some species have contributed to show-worthiness of various genera, their adaptation to a wider climate range, and easy cultivation. This book is a pleasure to view; simultaneously, an easy reference for the identification of orchid species and it provides a guide on how best to grow them. Nowhere else will one find so many popular species beautifully illustrated in a single volume. A must for everyone fascinated by orchids or with a love for nature.
Download or read book Slipper Orchids of the Tropical Americas written by Phillip Cribb and published by . This book was released on 2017-07-10 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Slipper orchids are amongst the most popular of all cultivated orchids. They are widely grown and have been hybridised for almost a century and a half. This book covers the tropical American species of three genera of slipper orchids, Selenipedium, Mexipedium and Phragmipedium. Until fairly recently the slipper orchid scene has been dominated by the tropical Asian species of the genus Paphiopedilum, however the discovery of a suite of spectacular new species, particularly in the genus Phragmipedium and of the monotypic Mexipedium xerophyticum,a true missing link, has transformed appreciation of the tropical American slipper orchid species. The new generation of hybrids that have resulted are showy, brightly coloured and long-lasting - favourites on the show bench and in the amateur greenhouse.This is the first monograph in English to cover the tropical American slipper orchids. Written by Phillip Cribb, perhaps the leading orchid taxonomist in the world, together with Christopher Purver, Director of the Eric Young Orchid Foundation, on the Isle of Jersey, renowned for its Phragmipedium breeding program.The authors provide a detailed systematic treatment of the genera and species, including their history,taxonomy, description, keys, distribution, cytology and ecology. A history of the breeding ofPhragmipedium hyrids since the second half of the 19th century deals with the revolution broughtabout by the discovery of the amazing scarlet -flowered P.besseae and the spectacular royal purple P. kovachii. Future breeding trends are also covered and the cultivation of these desirable plants is also discussed.Beautifully illustrated throughout with colour botanical paintings by Carol Woodin, as well as black andwhite line drawings, colour photographs and maps.
