The Cactus Primer

The high water - use efficiencies for cacti also reflect the fact that the stems can essentially seal themselves off from the surrounding air . Thus , during periods of drought cactus stomates stay closed and very little water is lost ...

Author: Arthur C. Gibson

Publisher: Harvard University Press

ISBN: 9780674089914

Category: Science

Page: 286

View: 828

The Cactus Primer presents the amateur cactophile with an excellent introduction to cactus biology and provides the informed reader with an invaluable summary of the last forty years' research. This book goes far beyond books that instruct readers in the propagation, growth, and care of these plants; addressing matters of more scientific interest, it takes an integrated approach to the presentation of the form, physiology, evolution, and ecology of cacti. The book is unique in that it combines the descriptive morphology and physiology documented in the scientific literature with more general observations found in popular publications on cacti. It provides a new generic classification of the cacti and contains much new information, including data on photosynthesis, heat and cold tolerance, computer modeling of ribs, and the effects of spines. Enhanced by over 400 illustrations and supplemented with an extensive glossary, this book will appeal to cactus enthusiasts interested in the classification and growth of cacti, as well as to plant biologists who use cacti to illustrate desert adaptation and convergent evolution. Written in accessible style, The Cactus Primer is bound to serve a dual function as both an instructive tool and a reference work in cactus biology for years to come.


Author: Dan Torre

Publisher: Reaktion Books

ISBN: 1780237693

Category: Nature

Page: 224

View: 395

Cacti are full of contradictions. Although many are found in the driest and most barren environments on earth, some grow exclusively in the branches of the rainforest canopy. Many species bristle with ferocious-looking spines, while other varieties are perfectly smooth. And while they might strike us as the most austere plants on earth, nearly all of them exhibit remarkable floral displays—some even larger than the plant itself. In Cactus, Dan Torre explores these unique plants as they appear all around the world and throughout art, literature, and popular culture. As Torre shows, cacti have played a prominent role in human history for thousands of years. Some species were revered by ancient civilizations, playing a part in their religious ceremonies; other varieties have been cultivated for their medicinal properties and even as a source of dye, as in the case of the prickly pear cactus and the cochineal insect, the source of red carmine used in everything from food to lipstick. Torre examines how cacti have figured in low-footprint gardens, as iconic features of the landscapes of Westerns, and as a delicious culinary ingredient, from nutritious Nopal pads to alluring Pitaya—or Dragon—fruits. Entertaining and informative, this book will appeal to any of us who have admired these hardy, efficient plants.

The Cactus Journal

To the Editor of the CACTUS JOURNAL . ties , and seldom flower . This is a great THE CACTUS HOBBY , mistake , as no class of plants are more Dear Sir , —Of all the numerous plants abundant in their blooms than many of that are grown by ...




Category: Cactus


View: 145

The Cactus and Its Home

CHAPTER V How to CULTIVATE THE Cactus It has been suggested that the popularity of the cacti as ornamentals is partly due to the fact that they will stand more neglect than any other plants . There is no doubt about their hardiness ...

Author: Forrest Shreve



Category: Cactus

Page: 220

View: 556

The Cactus and Succulent Journal of Great Britain

2.7 State of the plant A shrunken cactus will have greater water requirements than an otherwise similar but plump cactus . Similarly , a cactus with a healthy and extensive root system can be watered more generously than one which is ...




Category: Cactus


View: 851

From Seed to Cactus

As the cactus gets bigger, it takes on the shape it will have once it is fully grown. A cactus can be rounded. It can have branching parts that look like arms. No two cacti look exactly alike. In spring, the cactus flowers bloom.

Author: Lisa Owings

Publisher: LernerClassroom

ISBN: 1512456241

Category: Juvenile Nonfiction

Page: 24

View: 746

How does a little seed grow into a prickly cactus? Follow each step in nature's cycle--from seeds in the sand to fully grown cacti--in this intriguing book!

iOS Components and Frameworks

Since the cactus will act as a touchable item, it makes sense to create it as a UIButton. The frame variables are inserted, which cause the cactus to be inserted behind the dune and thus be invisible. An action is added to the cactus ...

Author: Kyle Richter

Publisher: Addison-Wesley Professional

ISBN: 0133086887

Category: Computers

Page: 576

View: 239

Take Your Next Leap Forward as an iOS App Developer! Covers iOS 7 and Xcode 5 iOS Components and Frameworks will help you leverage iOS’s powerful components and frameworks to build apps with outstanding performance, reliability, interactivity, media support, and customization. Pioneering iOS developers Kyle Richter and Joe Keeley illuminate the sophisticated intermediate-to-advancedlevel techniques you’re now ready for. You’ll find example-rich coverage of topics ranging from social support to security, Core Data, TextKit, iCloud support, UIKit Dynamics, MapKit, and Passbook. There’s also a complete section on advanced performance and security, including the effective use of Grand Central Dispatch and Keychain. Each chapter contains a complete sample project that walks you through integrating its technology into a typical iOS app. You’ll discover how multiple iOS features can be combined into exceptionally powerful apps and walk through a complete case study project: a fully functional game with complete Game Center integration. Coverage includes: New physics-based animation effects provided by UIKit Dynamics Making the most of Core Location, MapKit, and Geofencing Leveraging Game Center features such as Leader Boards and Achievements Giving users access to their address and media libraries from within your app Using lightweight JSON to move data among servers, apps, and websites Syncing apps via iCloud using UIDocument and key-value store syncing Securing user data with Keychain Informing users of important app-related events via Notifications Storing and retrieving persistent data locally with Core Data Using advanced Objective-C features to write more manageable, concise apps Improving responsiveness through concurrency with Grand Central Dispatch Advanced text handling and display with TextKit Smoothly handling complex and continuous gestures Effective debugging techniques with Xcode 5 and Instruments Building passes for Passbook and PassKit If you’re a serious iOS developer who wants to build cutting-edge apps, iOS Components and Frameworks delivers the practical skills, reusable code, and expert insights you’re looking for.

Top 100 Exotic Food Plants

CACTUS PEAR Family: Cactaceae (cactus family) NAMES Scientific Name: Opuntiaficus-indica (L.) Mill. The word “cactus” is the root of the family name Cactaceae and also applies to the genus name Cactus. This name was used by the ancient ...

Author: Ernest Small

Publisher: CRC Press

ISBN: 1439856885

Category: Science

Page: 708

View: 142

Many edible plants considered exotic in the Western world are actually quite mainstream in other cultures. While some of these plants are only encountered in ethnic food markets or during travels to foreign lands, many are now finding their way onto supermarket shelves. Top 100 Exotic Food Plants provides comprehensive coverage of tropical and semitropical food plants, reviewing scientific and technological information as well as their culinary uses. Wide-ranging in scope, this volume’s coverage includes plants that produce fruits, vegetables, spices, culinary herbs, nuts, and extracts. A user-friendly format enables readers to easily locate information on botanical and agricultural aspects, economic and social importance, food uses, storage, preparation, and potential toxicity. The book also contains an introductory chapter that reviews important historical, economic, geopolitical, health, environmental, and ethical considerations associated with exotic food plants. Thoroughly referenced with more than 2000 literature citations, this book is enhanced by more than 200 drawings, many chosen from historical art of extraordinary quality. This timely volume also highlights previously obscure edible plants that have recently become prominent as a result of sensationalistic media reports stemming from their inherently entertaining or socially controversial natures. Some of these plants include the acai berry, kava, hemp, and opium poppy. A scholarly yet accessible presentation, the book is filled with numerous memorable, fascinating, and humorous facts, making it an entertaining and stimulating read that will appeal to a broad audience.

The Indian Forester

It is not generally known what a cheap and effective forest conservator Cactus can be made . In tracts covered with the common yellow - flowering Cactus or prickly - pear ( Opuntia ) and even in hedgerows of Cactus , it will be observed ...




Category: Forests and forestry


View: 949