This volume is the outcome of a modern phylogenetic analysis of the grass family based on multiple sources of data, in particular molecular systematic studies resulting from a concerted effort by researchers worldwide, including the author. In the classification given here grasses are subdivided into 12 subfamilies with 29 tribes and over 700 genera. The keys and descriptions for the taxa above the rank of genus are hierarchical, i.e. they concentrate upon characters which are deemed to be synapomorphic for the lineages and may be applicable only to their early-diverging taxa.
Beyond the treatment of phylogeny and formal taxonomy, the author presents a wide range of information on topics such as the structural characters of grasses, their related functional aspects and particularly corresponding findings from the field of developmental genetics with inclusion of genes and gene products instrumental in the shaping of morphological traits (in which this volume appears unique within this book series); further topics addressed include the contentious time of origin of the family, the emigration of the originally shade-loving grasses out of the forest to form vast grasslands accompanied by the switch of many members to C4 photosynthesis, the impact of herbivores on the silica cycle housed in the grass phytoliths, the reproductive biology of grasses, the domestication of major cereal crops and the affinities of grasses within the newly circumscribed order Poales.
This volume provides a comprehensive overview of existing knowledge on the Poaceae (Gramineae), with major implications in terms of key scientific challenges awaiting future research. It certainly will be of interest both for the grass specialist and also the generalist seeking state-of-the-art information on the diversity of grasses, the most ecologically and economically important of the families of flowering plants.
Shakespeare lived when knowledge of plants and their uses was a given, but also at a time of unique interest in plants and gardens.His lifetime saw the beginning of scientific interest in plants, the first large-scale plant introductions from outside the country since Roman times, and the beginning of gardening as a leisure activity. Shakespeare's works show that he engaged with this new world to illuminate so many facets of his plays and poems. This dictionary offers a complete companion to Shakespeare's references to landscape, plants and gardens, including both formal and rural settings.It covers plants and flowers, gardening terms, and the activities that Shakespeare included within both cultivated and uncultivated landscapes as well as encompassing garden imagery in relation to politics, the state and personal lives. Each alphabetical entry offers an definition and overview of the term discussed in its historical context, followed by a guided tour of its use in Shakespeare's works and finally an extensive bibliography, including primary and secondary sources, books and articles.
Ranging from miniature epiphytic orchids to towering trees, and from mangrove forests lining coastal waterways to high-elevation cloud forests, Costa Rica's rich and varied flora dazzles visitors and botanists alike. Tropical Plants of Costa Rica, the first popular treatment to include plants from all regions of the country, is an indispensable guide to native and exotic species found in the neotropics.This book is beautifully illustrated with more than 540 full-color photographs taken in the field, each depicting an entire plant or a closer view of flowers, fruits, or seeds. Instructive pen-and-ink drawings of botanical details also accompany many of the accounts. The text clearly explains each plant's identifying characteristics and reveals fascinating facts about its natural history, chemical properties, economic importance, and medicinal and other uses. Sidebar features throughout the book highlight conservation, ethnobotany, and ecology; their topics include unusual applications for plants, distinct attributes of certain plant families, and plants of particular microhabitats. Tropical Plants of Costa Rica is a wonderful resource for naturalists, students, and researchers, as well as both experienced and first-time visitors to Costa Rica and the American tropics.
30 whimsical flowery designs full of the joys of spring:
********* TAGS: adult colouring books, colouring books for adults, colouring book for adults, flowers colouring book, colouring book for grown-ups, colouring books for grown-ups, flowers to colour, flower colouring book, flower colouring books, flowers colouring book, flowers colouring books, flower colouring book, floral colouring book, flowery colouring book for adult
George loves to go to the science museum. So, when he finds out that the museum is planning a "Green Day" dedicated to recycling and planting trees, and George is curious and wants to help out But little monkeys eager to help can sometimes become little monkeys getting into trouble. When George begins to find and recycle things around town that aren't quite ready for the recycle bin, he gets into a jam. Thankfully, George isn't the only one who wants to help--the whole community can't wait to lend a hand--and help George and the museum plant some trees