Systematics of Glossoloma (Gesneriaceae) PDF Download

Author: John Littner Clark
Publisher:
ISBN:
Category : Gesneriaceae
Languages : en
Pages : 146

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Author:
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 492

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Author: Lars Peter Kvist
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 96

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The components of the vascular systems in the male floret and the female floret of Raddia are described from reconstructed serial, transverse sections. Squat tracheary elements, sieve elements, and intermediary cells comprise the systems. The male floret has six and the female floret three collateral bundles in the rachilla at the floret base that become interconnected into a lower sieve-element plexus with accompanying tracheary elements. Besides contributing to the lower plexus, the rachilla bundles serve as the traces for the lemma and palea. That bundle (bundle 3) which is the trace for the lemma median contributes most of the sieve and tracheary elements to the lower plexus. Supernumerary bundles are associated with bundle 3. Rising in the rachilla from the lower plexus is the upper plexus of sieve and tracheary elements. The circular form of the upper plexus of the male floret is influenced by the two traces from each of the anterior lodicules and by each trace from the three stamens. The trace from the posterior lodicule of the male and female florets does not influence the upper plexus. The bi-arcuate form of the upper plexus of the female floret is influenced by the two, more posterior traces from the anterior lodicules. The three staminodia in the female floret do not influence the upper plexus because they are avascular. At the pistil base is a massive amphicribral bundle, the pistil plexus, that sends down vascular prongs and lobes to merge with the upper and lower plexi. Two posterolateral (stylar) collateral bundles merge with the pistil plexus in a gynobasic manner. A placental bundle ascends from the posterior of the pistil plexus, merges with the chalaza, and exceeds the tip of the ovule before ending in a stylar core. Components of the floret vascular system of Raddia confirm the Olyreae as a tribe of the Bambusoideae that should not be placed in the subfamilies Festucoideae, Oryzoideae, or Panicoideae.

Author: George Don
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 856

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Author: Philip Mathew
Publisher:
ISBN:
Category : Angiosperms
Languages : en
Pages : 350

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Author: Smithsonian Institution
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 92

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Author: Joachim W. Kadereit
Publisher: Springer Science & Business Media
ISBN: 3642186173
Category : Science
Languages : fr
Pages : 487

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In this volume, 24 flowering plant families comprising a total of 911 genera are treated. They represent the asterid order Lamiales except for Acanthaceae (including Avicenniaceae), which will be included in a later volume. Although most of the constituent families of the order have been recognized as being closely related long ago, the inclusion of the families Byblidaceae, Carlemanniaceae and Plocospermataceae is the result mainly of recent molecular systematic research. Keys for the identification of all genera are provided, and likely phylogenetic relationships are discussed extensively. To facilitate the recognition of relationships, families are cross-referenced where necessary. The wealth of information contained in this volume makes it an indispensable source for anybody in the fields of pure and applied plant sciences.

Author:
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 616

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Author: F. Merlin Franco
Publisher: Springer
ISBN: 9783030383886
Category : Science
Languages : en
Pages : 0

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This volume is a compendium of selected plant species of ethnobotanical value to the highland communities of popular Southeast Asia. “Traditional” knowledge held by local communities on their resources is always in flux and adapting to a quickly changing environment. New plants find their entry into the local pharmacopoeias, while existing ones maybe removed. Likewise, various local communities might find the same plant useful for completely different purposes. While compiling information on the species, authors have taken great care to ensure that the dynamic nature of ethnobotanical knowledge is represented adequately. Special emphasis has also been given to cultural value of species to the local communities in the region. The field (and thus the market) of ethnobotany and ethnopharmacology has grown considerably in recent years. Student interest is on the rise, attendance at professional conferences has grown steadily, and the number of professionals calling themselves ethnobotanists has increased significantly (the various societies (Society for Economic Botany, International Society of Ethnopharmacology, Society of Ethnobiology, International Society for Ethnobiology, and many regional and national societies in the field currently have thousands of members). The objective of this new Major Reference Work on Ethnobotany of Mountain Regions of Southeast Asia is to take advantage of the increasing international interest and scholarship on highland landscapes and communities. While ethnobotanical studies are now available from many regions of the world, no comprehensive encyclopedic volume on the highlands of popular SE Asia is available in the market. We include the best and latest research on a full range of descriptive, methodological, theoretical, and applied research on the most important plants for the region. Scholars in plant sciences worldwide will also be interested in the dedicated website for this volume and its dynamic content.

Author: Montserrat Arista
Publisher: Frontiers Media SA
ISBN: 2889715930
Category : Science
Languages : en
Pages : 402

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