Klaus Kubitzki – författare

Compiled and written for advanced students, this encyclopedia contains a comprehensive treatment of the taxonomy of the families and genera of ferns and seed plants. The present volume, the sixth in this series, deals with five groups of dicotyledons, the Celastrales, Oxalidales, Rosales, Cornales, and Ericales, comprising 48 families.

In this volume, the ninth of the series, treatments are offered for 52 families containing 432 genera belonging to 13 eudicot orders, many of which have recently been newly designed; Systematically relevant information includes descriptions of families and genera, keys to the genera, and references to recent revisions.

When more than two decades ago this series was planned, classi?cation at the level of higher categories was rather contentious and considered to be of little concern for this book series. Through the advancement of molecular systematics within the last decade, the outlines of a phylogenetically based family scheme of angiosperms have become ava- able. This phylogenetic scheme for the ?rst time made meaningful broader comparisons feasible and is adopted here as a guideline for the circumscription of major blocks of families. However,due to the fragility of formal higher level classi?cation only one ca- gory above the rank of family,that of order,will be used in this volume. Despite the great progress in the understanding of broader phylogenetic relationships made during the last years, the circumscription of many families, let alone of genera, is still far from being settled and, in the contributions to this volume, the arrangement of genera within families is often phenetic rather than phylogenetic. This dif?culty is p- ticularly acute in larger families, and despite much molecular work that has been c- ducted in Cruciferae,the authors of that family account to this volume felt it premature to provide a formal subdivision of the group. Also,in other families,and particularly in Malvaceae-Malvoideae, the arrangement and circumscription of genera, for lack of a better alternative,are largely phenetic. Nevertheless,it is hoped that the classi?cation p- sented here is an advance over what had been known previously.

This new encyclopaedia, the second volume of which is presented here, offers access to the diversity of ferns and seed plants, the most imrtant groups of green land plants. Available information of general and systematic relevance is synthesized at the level of families. Evidence from virtually all disciplines important to modern taxonomy makes the work a most valuable source of reference not only for taxonomists, but for all who are interested in the various aspects of plant diversity. A revised classification includes a complete inventory of genera along with their diagnostic features, keys for identification, and references to the literature.

Volumes III and IV of this encyclopaedia provide a novel classification of the monocotyledons, a group encompassing plants of most diverse life-forms such as aquatics, terrestrial and epiphytic herbs, and tall trees. Of the 106 families now recognized 104 are treated in the two volumes, while the economically or horticulturally important grass and orchid families are relegated to two subsequent volumes. The classification followed here is based on recent molecular studies as well as on the vast body of information available on this plant group. The wealth and precision of information, but also the keys for the identification of genera and details on their properties, including distribution and diversification, make this work an important source for both the scholar and the practitioner in the fields of pure and applied plant sciences..

Volumes III and IV of this encyclopaedia provide a novel classification of the monocotyledons, a group encompassing plants of most diverse life-forms such as aquatics, terrestrial and epiphytic herbs, and tall trees. Of the 106 families now recognized 104 are treated in the two volumes, while the economically or horticulturally important grass and orchid families are relegated to two subsequent volumes. The classification followed here is based on recent molecular studies as well as on the vast body of information available on this plant group. The wealth and precision of information, but also the keys for the identification of genera and details on their properties, including distribution and diversification, make this work an important source for both the scholar and the practitioner in the fields of pure and applied plant sciences.

Compiled and written for advanced students, this encyclopedia contains a comprehensive treatment of the taxonomy of the families and genera of ferns and seed plants. The present volume, the sixth in this series, deals with five groups of dicotyledons, the Celastrales, Oxalidales, Rosales, Cornales, and Ericales, comprising 48 families.

In this volume, the ninth of the series, treatments are offered for 52 families containing 432 genera belonging to 13 eudicot orders, many of which have recently been newly designed; four families remain unassigned to order. Emphasis is on the early-diverging eudicots and basal core eudicots the phylogenetic relationships and diversification of which have recently been in focus and are critically discussed. Systematically relevant information includes descriptions of families and genera, keys to the genera, and references to recent revisions. Introductions to the families provide convenient, in-depth overviews of key aspects of systematics. The wealth and precision of information contained in this volume will make it an important source of reference for both the scholar and the practitioner in the fields of pure and applied plant sciences.

When more than two decades ago this series was planned, classi?cation at the level of higher categories was rather contentious and considered to be of little concern for this book series. Through the advancement of molecular systematics within the last decade, the outlines of a phylogenetically based family scheme of angiosperms have become ava- able. This phylogenetic scheme for the ?rst time made meaningful broader comparisons feasible and is adopted here as a guideline for the circumscription of major blocks of families. However,due to the fragility of formal higher level classi?cation only one ca- gory above the rank of family,that of order,will be used in this volume. Despite the great progress in the understanding of broader phylogenetic relationships made during the last years, the circumscription of many families, let alone of genera, is still far from being settled and, in the contributions to this volume, the arrangement of genera within families is often phenetic rather than phylogenetic. This dif?culty is p- ticularly acute in larger families, and despite much molecular work that has been c- ducted in Cruciferae,the authors of that family account to this volume felt it premature to provide a formal subdivision of the group. Also,in other families,and particularly in Malvaceae-Malvoideae, the arrangement and circumscription of genera, for lack of a better alternative,are largely phenetic. Nevertheless,it is hoped that the classi?cation p- sented here is an advance over what had been known previously.

This new encyclopaedia, the second volume of which is presented here, offers access to the diversity of ferns and seed plants, the most imrtant groups of green land plants. Available information of general and systematic relevance is synthesized at the level of families. Evidence from virtually all disciplines important to modern taxonomy makes the work a most valuable source of reference not only for taxonomists, but for all who are interested in the various aspects of plant diversity. A revised classification includes a complete inventory of genera along with their diagnostic features, keys for identification, and references to the literature.

Volumes III and IV of this encyclopaedia provide a novel classification of the monocotyledons, a group encompassing plants of most diverse life-forms such as aquatics, terrestrial and epiphytic herbs, and tall trees. Of the 106 families now recognized 104 are treated in the two volumes, while the economically or horticulturally important grass and orchid families are relegated to two subsequent volumes. The classification followed here is based on recent molecular studies as well as on the vast body of information available on this plant group. The wealth and precision of information, but also the keys for the identification of genera and details on their properties, including distribution and diversification, make this work an important source for both the scholar and the practitioner in the fields of pure and applied plant sciences..

Volumes III and IV of this encyclopaedia provide a novel classification of the monocotyledons, a group encompassing plants of most diverse life-forms such as aquatics, terrestrial and epiphytic herbs, and tall trees. Of the 106 families now recognized 104 are treated in the two volumes, while the economically or horticulturally important grass and orchid families are relegated to two subsequent volumes. The classification followed here is based on recent molecular studies as well as on the vast body of information available on this plant group. The wealth and precision of information, but also the keys for the identification of genera and details on their properties, including distribution and diversification, make this work an important source for both the scholar and the practitioner in the fields of pure and applied plant sciences..

This volume, the tenth in the series, comprises modern treatments for the families and genera of the eudicot orders Sapindales and Cucurbitales. The circumscription of the orders, families and genera conforms to the most recent systematic studies. The family treatments include descriptions of the families and the genera, genera classification keys, discussions of relationships and data on their morphology, reproductive biology, distribution, ecology and economic importance. Sapindales and Cucurbitales, as understood in this volume, comprise 16 families with 637 genera and roughly 9,240 species. Sapindales include large tropical and southern temperate tree families such as the Anacardiaceae, Sapindaceae (these in the modern circumscription, which includes Aceraceae and Hippocastanaceae), Meliaceae and Rutaceae, which have long been considered to be closely related. Cucurbitales represent a relatively new ordinal concept; apart from some small woody groups, the order contains two large families, Cucurbitaceae and Begoniaceae, which are predominantly, and likely basically, herbaceous.A detailed treatment of the tropical and southern temperate woody family Myrtaceae (itself comprising 142 genera and 6,700 species) is an addendum to the treatment of the Myrtales in Vol. IX of this series.

This volume presents systematic treatments for the families and genera of the Malpighiales, which more recently have been recognised as a new major group of the eudicots. Apart from several herbaceous lineages (already treated in Vol. IX of this series), the order consists mainly of rainforest trees, particularly those of the understorey. Accompanied by other early eudicot lineages, this reflects the well-documented origin of the group as invaders into the conifer-, cycad- and seed fern-dominated forests of the Cretaceous which, at that time, were transformed into the tropical rainforest biome. In this volume, 24 families with 429 genera comprising over 12,000 species are treated. Many of these belong to the vast family of the Euphorbiaceae (here conceived in a broader sense), followed by the Violaceae, whereas some of the remaining families are very small and even relictual. The revised classification includes a complete inventory of the genera belonging to the families treated in this volume, along with their diagnostic features and keys for their identification. References to the latest taxonomic literature and links to many different disciplines important to modern plant systematics make the volume a valuable source of information on the manifold aspects of plant diversity.

This volume, the tenth in the series, comprises modern treatments for the families and genera of the eudicot orders Sapindales and Cucurbitales. The circumscription of the orders, families and genera conforms to the most recent systematic studies. The family treatments include descriptions of the families and the genera, genera classification keys, discussions of relationships and data on their morphology, reproductive biology, distribution, ecology and economic importance. Sapindales and Cucurbitales, as understood in this volume, comprise 16 families with 637 genera and roughly 9,240 species. Sapindales include large tropical and southern temperate tree families such as the Anacardiaceae, Sapindaceae (these in the modern circumscription, which includes Aceraceae and Hippocastanaceae), Meliaceae and Rutaceae, which have long been considered to be closely related. Cucurbitales represent a relatively new ordinal concept; apart from some small woody groups, the order contains two large families, Cucurbitaceae and Begoniaceae, which are predominantly, and likely basically, herbaceous.A detailed treatment of the tropical and southern temperate woody family Myrtaceae (itself comprising 142 genera and 6,700 species) is an addendum to the treatment of the Myrtales in Vol. IX of this series.

Der Senior unserer Herausgebergemeinschaft HEINZ ELLENBERG hat sich leider aus der Redaktion zuruckgezogen. Nach dem Tode von ERNST GXUMANN hatte er 1963 (ab Band 26) zusammen mit ERWIN BUNNING die Herausgeberschaft der "Fortschritte der Botanik" ubernommen. Seiner Aufgeschlossenheit und auch seiner Initiative ist die dann spater erfolgte Erweiterung des Herausgebergremiums und die damit verbundene inhaltliche Umgestaltung zu verdanken. In seiner nunmehr fast zwanzigjahrigen Betreuung des Abschnittes "Geobotanik" hat er dazu beigetragen, daB dieses Teilgebiet zu einer wesentlichen Saule unserer Reihe geworden ist. Herausgeber und Verlag mochten ihm fur seine Redaktionsarbeit danken und hoffen, daB Herr ELLENBERG ihnen auch weiterhin in alter Freund- schaft verbunden bleibt. An seiner Stelle . hat von diesem Band ab Herr MICHAEL RUNGE die Schriftleitung des Kapitels Geobotanik ubernommen. Die Herausgeber Contents A. MORPHOLOGY I. Cytology a) General and Molecular Cytology. By ANTHONY W. ROBARDS *** 1. Root Hairs ******************************************* 1 a) Development and Structure of Root Hairs *********** 1 b) Microbial and Other Associations with Root Hairs ** 3 2.Cytoplasmic Streaming ******************************** 6 a) General Experimental Effects on Cytoplasmic Streaming ***************************************** 7 b) Effects of Cytochalasin B on Cytoplasmic Streaming ***************************************** 8 c) Effects of Light and of Growth Regulators on Cytoplasmic Streaming ***************************** 9 d) The Role of Calcium in Cytoplasmic Streaming ****** 10 e) General Observations on Cytoplasmic Streaming ***** 11 3. Calmodulin ******************************************* 1 2 References ********************************************** 14 b) Special Cytology: Cytology and Morphogenesis of Higher Plant Cells - Phloem. By H. -D.