Author: Francis Raymond FosbergPublisher:
ISBN:
Category : Botany
Languages : en
Pages : 806
Book Description
A Study of the Tribe Gesnerieae, with a Revision of Gesneria (Gesneriaceae, Gesnerioideae)
Author: Francis Raymond FosbergPublisher:
ISBN:
Category : Botany
Languages : en
Pages : 806
Book Description
A Study of the Tribe Gesnerieae and a Revision of Part of Gesneria L. (Gesneriaceae-Gesnerioideae).
Author: Laurence E. SkogPublisher:
ISBN:
Category : Gesneriaceae
Languages : en
Pages : 738
Book Description
A Study of the Tribe Gesnerieae, with a Revision of Gesneria (Gesneriaceae: Gesnerioideae)
Author: Laurence E. SkogPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
A study is made of the tribe Gesnerieae of the family Gesneriaceae from the West Indies, giving information on history, anatomy and morphology, pollination and dispersal, and hybridization in the tribe. The tribe comprises 67 species in 3 genera: Rhytidophyllum, Gesneria, and Pheidonocarpa. The last genus is described as new, with a new species combination, Pheidonocarpa corymbosa (Swartz) L. Skog, and 2 subspecies. A revision of Gesneria Linnaeus is presented based on field and herbarium studies. Gesneria is divided into 9 sections, 46 species (a new species, Gesneria onychocalyx L. Skog, is described), 12 subspecies, and 11 varieties. The taxonomic portion includes keys, synonymies, descriptions, typifications, distributions, and ecology, as well as distribution maps and illustration of the taxa. Also enumerated in Appendix 1 are many species names once included in Gesnera or Gerneria, but which have been transferred to other genera. Two new combinations are made in this portion of the text: Rhytidophyllum cumanense (Hanstein) L. Skog and Rhytidophyllum onacaense (Rusby) L. Skog.
Selbyana
Author: Revision of Kohleria (Gesneriaceae)
Author: Lars Peter KvistPublisher:
ISBN:
Category : Botany
Languages : en
Pages : 96
Book Description
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.
A Study of the Tribe Gesnerieae, with a Revision of Gesneria (Gesneriaceae, Gesnerioideae)
Author: Laurence E. SkogPublisher:
ISBN:
Category : Botany
Languages : en
Pages : 192
Book Description
A study is made of the tribe Gesnerieae of the family Gesneriaceae from the West Indies, giving information on history, anatomy and morphology, pollination and dispersal, and hybridization in the tribe. The tribe comprises 67 species in 3 genera: Rhytidophyllum, Gesneria, and Pheidonocarpa. The last genus is described as new, with a new species combination, Pheidonocarpa corymbosa (Swartz) L. Skog, and 2 subspecies. A revision of Gesneria Linnaeus is presented based on field and herbarium studies. Gesneria is divided into 9 sections, 46 species (a new species, Gesneria onychocalyx L. Skog, is described), 12 subspecies, and 11 varieties. The taxonomic portion includes keys, synonymies, descriptions, typifications, distributions, and ecology, as well as distribution maps and illustrations of the taxa. Also enumerated in Appendix 1 are many species names once included in Gesnera or Gesneria, but which have been transferred to other genera. Two new combinations are made in this portion of the text: Rhytidophyllum cumanense (Hanstein) L. Skog and Rhytidophyllum onacaense (Rusby) L. Skog.
A Revision of the Lichen Genus Hypotrachyna (Parmeliaceae) in Tropical America
Author: Mason E. HalePublisher:
ISBN:
Category : Science
Languages : en
Pages : 476
Book Description
The Kew Record of Taxonomic Literature Relating to Vascular Plants for ...
Author: Kew Record of Taxonomic Literature Relating to Vascular Plants
Author: Kew Royal Botanic GardensPublisher: Stationery Office Books (TSO)
ISBN: 9780117292451
Category : Political Science
Languages : en
Pages : 104
Book Description
Kew Record of Taxonomic Literature Relating to Vascular Plants
Flowering Plants · Dicotyledons
Author: Joachim W. KadereitPublisher: Springer Science & Business Media
ISBN: 3642186173
Category : Science
Languages : en
Pages : 487
Book Description
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.